MikaStars39/nano-eval huggingface dataset:
A furnace operates at 1 atm using preheated air to improve fuel efficiency. When the air is preheated to 800K and the air-fuel mass ratio is 18, what is the adiabatic flame temperature? Assume the initial temperature of the fuel is 450K. Other thermodynamic properties are simplified as follows: T_ref = 300 K, MW_fuel = MW_air = MW_prod = 29 Kg/kmol, c_p,fuel = 3500 J/(kg*K), c_p,air = c_p,prod = 1200 J/(kg*K), h0_f,air = h0_f,prod = 0, h0_f,fuel = 1.16 x 10^9 J/kmol, adiabatic flame temperature [K]:

Options:
A. 2501
B. 2561
C. 2451
D. 2601
E. 2761
F. 2351
G. 2511
H. 2551
I. 2401
J. 2651
Answer: H
The role of dialectical materialist naturalism

Options:
A. Achieved a significant transformation in the history of the development of naturalism
B. Achieved a significant advancement in the history of the development of naturalism
C. Achieved a significant but gradual transformation in the history of the development of naturalism
D. Achieved a revolutionary transformation in the history of the development of naturalism
E. Laid the theoretical foundation for the formation of Marxist naturalism
F. Contributed to the philosophical underpinnings of modern scientific materialism
G. Provided a methodological basis for the development of natural sciences
H. Became the ideological source for the formation of systematic naturalism, artificial naturalism, and ecological naturalism
I. Achieved a notable transformation in the history of the development of naturalism
J. Achieved a fundamental transformation in the history of the development of naturalism
Answer: D
Determine the convergence of the series $sumlimits_{n=1}^{infty }{{frac{1}{sqrt{n}}}{cos{frac{{n}pi}{3}}}}$:

Options:
A. Absolutely converges
B. Conditionally converges
C. Absolutely converges with a conditional test success
D. Conditionally converges with a test for absolute convergence success
E. Uncertain, but likely absolutely converges
F. Absolutely converges with a conditional test failure
G. Conditionally converges with a test for absolute convergence failure
H. Does not converge
I. Uncertain, but likely conditionally converges
J. Uncertain
Answer: B
Assuming that the discovery of new oil wells in other countries leads to an increase in oil supply by non-OPEC members, and OPEC is unable to reach a consensus on a response in the short term, thus acting according to the original strategy, what impact will this have on the world oil market prices?

Options:
A. Slightly decrease
B. Moderately decrease
C. Cannot be determined from the above information
D. Slightly increase
E. Moderately increase
F. Drastically increase
G. Drastically decrease
H. Remain unchanged
I. Decrease
J. Increase
Answer: I
After the Xinhai Revolution, the fundamental reason for the Chinese people's continued exploration of the path to save the country is ( ).

Options:
A. The retrogressive actions of the Beiyang warlords
B. The social nature and fundamental contradictions of China were temporarily alleviated but eventually resurfaced.
C. The economic policies of the new government failed to address the root issues.
D. The political instability and frequent changes in leadership prevented effective governance.
E. Influenced by new revolutionary ideas
F. The social nature and fundamental contradictions of China were temporarily alleviated but eventually returned to their original state.
G. The social nature and fundamental contradictions of China were temporarily alleviated but not fundamentally resolved.
H. The social nature and fundamental contradictions of China were temporarily alleviated but eventually worsened.
I. Influenced by the Comintern
J. The social nature and fundamental contradictions of China have not changed.
Answer: J
The three-stage brushless synchronous generator regulates the output voltage of the main generator by adjusting the excitation current of the main exciter. This device is called a voltage regulator. When multiple synchronous generators of the same model operate in parallel, the voltage regulator is usually used to adjust the excitation current of the generator to achieve the balanced distribution of ( ) power.

Options:
A. electromagnetic and apparent power
B. apparent power
C. active and reactive power
D. reactive power
E. electromagnetic power
F. electromagnetic and reactive power
G. mechanical power
H. active and apparent power
I. active power
J. active and electromagnetic power
Answer: D
If the cancellation notice sent by the construction company arrives at the material supplier before the purchase order, the cancellation notice is legally referred to as ( ).

Options:
A. Offer Cancellation
B. Offer Reconsideration
C. Offer Rejection
D. Offer Reversal
E. Acceptance Revocation
F. Offer Revocation
G. Offer Withdrawal
H. Acceptance Withdrawal
I. Acceptance Reconsideration
Answer: G
The Fajans method requires the acidity condition of the solution to be:

Options:
A. pH greater than the Kpa of the indicator, but less than pH 10.5
B. pH greater than the Kpa of the indicator, but less than pH 9.8
C. pH greater than the Kpa of the indicator, but greater than pH 10.0
D. Strongly alkaline solution
E. pH 6.5~10.5 solution
F. pH greater than the Kpa of the indicator, but less than pH 9.7
G. pH greater than the Kpa of the indicator, less than pH 10.0
H. Strongly acidic solution with pH less than the Kpa of the indicator
I. pH greater than the Kpa of the indicator, but less than pH 9.5
J. pH greater than the Kpa of the indicator, but less than pH 9.0
Answer: G
When estimating the unknown parameter θ, given an unbiased estimator x of θ and a sufficient statistic T, if y represents the conditional mean of x given T, which of the following statements are correct?

Options:
A. y follows a Gaussian distribution
B. the variance of y is greater than the variance of x
C. y is an unbiased estimator of x
D. the variance of y is less than the variance of x
E. y is a usable estimator of θ
F. y is unbiased
G. y is an unbiased estimator of T
Answer: E
For 3D radiation analysis, dividing into 100 volume elements and 50 surface elements, how many READ numbers should be calculated using the Monte Carlo method?

Options:
A. 22500
B. 7500
C. 22550
D. 22351
E. 15000
F. 22600
G. 22400
H. 22450
I. 22352
J. 22350
Answer: A
Given the series $\sum\limits_{n=0}^{\infty }{a_{n}}(x+3)^{n}$ converges at $x=-1$, determine the convergence or divergence of the series at $x=1$.

Options:
A. converges, but the radius of convergence is unknown
B. diverges absolutely
C. converges conditionally
D. converges, but not absolutely
E. diverges conditionally
F. converges, but the behavior is unknown
G. diverges
H. converges, but the behavior is undetermined
I. converges absolutely
J. cannot determine the convergence or divergence
Answer: J
Assuming there is a bond with a coupon rate of 8%, a face value of 1000 yuan, a term of 30 years, and interest paid semi-annually. If the current selling price is 1276.76 yuan, what is the yield to maturity for an investor who purchases the bond at this price?

Options:
A. 5.85%
B. 3%
C. 5.5%
D. 5.90%
E. 6%
F. 4%
G. 5.95%
H. 5.25%
I. 5%
J. 5.75%
Answer: E
The Ninth Congress of the Fourth Red Army's Party was held in Gutian Village, Shanghang County, Fujian Province in late December 1929. The conference summarized the experience since the establishment of the Red Army and adopted the famous Gutian Conference Resolution. The central idea of the resolution is ( )

Options:
A. to build the army and the Party with the principles of the proletariat ideology
B. the Communist Party of China must obey the leadership of the Comintern
C. to build the army and the Party with the ideology of the proletariat
D. to build the army and the Party with the ideology of the working class
E. to widely carry out the land revolution in rural bases
F. to build the army and the Party with the ideology of the peasant class
G. to build the army and the Party with the principles of the bourgeoisie
H. to build the army and the Party with the principles of the proletariat
I. to strengthen the army and the Party through the principles of the proletariat
J. armed struggle is the main form of the Chinese revolution
Answer: C
For a chiller with a constant theoretical air supply volume, which of the following statements is correct?

Options:
A. Under the same conditions, a decrease in the cooling water inlet temperature will increase both the cooling capacity and the energy efficiency ratio of the chiller.
B. Under the same conditions, an increase in the chilled water outlet temperature will increase both the cooling capacity and the energy efficiency ratio of the chiller
C. Under the same conditions, an increase in the cooling water inlet temperature will reduce the cooling capacity but have no effect on the energy efficiency ratio of the chiller.
D. Under the same conditions, an increase in the cooling water inlet temperature will reduce the cooling capacity but have a negligible impact on the energy efficiency ratio of the chiller.
E. A newly purchased chiller, when its operating conditions are the same as the rated (or nominal) conditions, its cooling capacity is the rated cooling capacity marked on the nameplate (except for allowable errors)
F. Under the same conditions, an increase in the cooling water inlet temperature will reduce the cooling capacity but increase the energy efficiency ratio of the chiller.
G. Under the same conditions, an increase in the cooling water inlet temperature will reduce both the cooling capacity and the energy efficiency ratio of the chiller.
H. Under the same conditions, an increase in the cooling water inlet temperature will reduce the cooling capacity but slightly improve the energy efficiency ratio of the chiller.
I. Under the same conditions, an increase in the cooling water inlet temperature will reduce the cooling capacity but slightly decrease the energy efficiency ratio of the chiller.
J. Under the same conditions, a decrease in the cooling water flow rate will reduce its cooling capacity
Answer: G
The fundamental reason for the upsurge in people's democratic movements in the Nationalist-controlled areas during the Liberation War period was ( ).

Options:
A. The economic collapse and political crisis of the Kuomintang's dictatorial rule
B. The Communist Party of China organized a second front against Chiang Kai-shek's rule
C. The economic downturn and political crisis of the Kuomintang's dictatorial regime
D. The economic downturn and political instability of the Kuomintang's dictatorial regime
E. Joint struggles of various democratic parties and people's resistance movements spread throughout the country
F. The economic decline and political turmoil of the Kuomintang's authoritarian regime
G. Massive 'three-against' struggles organized by students in various places aroused public enthusiasm
H. The economic downturn and political crisis of the Kuomintang's authoritarian rule
I. The economic stagnation and political instability of the Kuomintang's authoritarian rule
J. The economic downturn and political instability of the Kuomintang's authoritarian regime
Answer: A
American language educator Krashen proposed a series of hypotheses on second language acquisition, among which the most famous are the Monitor Hypothesis and ()

Options:
A. Universal Grammar Hypothesis
B. Output Hypothesis
C. Affective Filter Hypothesis
D. Comprehensible Input Hypothesis
E. Comprehensible Output Hypothesis
F. Interlanguage Hypothesis
G. Natural Order Hypothesis
H. Affective Output Hypothesis
I. Input Hypothesis
J. Interaction Hypothesis
Answer: I
The central link in the development of primary hypertension due to hereditary renal dysfunction is

Options:
A. increased renal potassium excretion tendency
B. increased renal potassium retention tendency
C. increased renal calcium retention tendency
D. increased renal sodium excretion tendency
E. activation of the renin-angiotensin system
F. increased production of renal pressor substances
G. reduced production of renal depressor substances
H. increased renal sodium retention tendency
I. increased renal chloride retention tendency
J. increased renal sodium reabsorption tendency
Answer: H
The foundation for the unity of scientific and revolutionary aspects of Marxism is

Options:
A. theoretical practice
B. empirical evidence
C. logicality
D. combativeness
E. practicality
F. pragmatism
G. theoretical nature
H. theoretical application
I. theoretical practicality
Answer: E
In a clinical trial evaluating the efficacy of antihypertensive drugs, the initial blood pressure levels of patients affect the amount of blood pressure reduction after a period of medication, but the initial blood pressure levels of patients are difficult to control. To balance the impact of the initial blood pressure levels of patients, ( ) can be considered.

Options:
A. regression analysis with covariates
B. covariance analysis
C. regression analysis
D. t-test
E. rank sum test
F. regression analysis with baseline covariates
G. regression analysis with interaction terms
H. ANOVA
I. regression analysis with baseline interaction
J. regression analysis with baseline adjustment
Answer: B
Let `xi _1, xi _2, xi _3, xi _4` be a fundamental solution set of `Ax=0`. Then another fundamental solution set of the equation can be ( )

Options:
A. [ {xi _1} + {xi _2}, {xi _2} + {xi _3}, {xi _3} + {xi _4}, {xi _4} + {xi _1}]
B. a vector group `alpha _1, alpha _2, alpha _3, alpha _4` of the same rank as `xi _1, xi _2, xi _3, xi _4` but not equivalent
C. [{xi _1} + {xi _2}, {xi _2} + {xi _3}, {xi _3} - {xi _4}, {xi _4} - {xi _1}]
D. a vector group `alpha _1, alpha _2, alpha _3, alpha _4` of the same nullity as `xi _1, xi _2, xi _3, xi _4`
E. a vector group `alpha _1, alpha _2, alpha _3, alpha _4` of the same span as `xi _1, xi _2, xi _3, xi _4`
F. a vector group `alpha _1, alpha _2, alpha _3, alpha _4` of the same dimension as `xi _1, xi _2, xi _3, xi _4`
G. a vector group `alpha _1, alpha _2, alpha _3, alpha _4` of the same nullity as `xi _1, xi _2, xi _3, xi _4` but not equivalent
H. a vector group `alpha _1, alpha _2, alpha _3, alpha _4` equivalent to `xi _1, xi _2, xi _3, xi _4`
I. a vector group `alpha _1, alpha _2, alpha _3, alpha _4` of the same rank as `xi _1, xi _2, xi _3, xi _4`
J. a vector group `alpha _1, alpha _2, alpha _3, alpha _4` of the same rank as `xi _1, xi _2, xi _3, xi _4` but with a different basis
Answer: H
Xiaoming is writing a research paper on the translation and dissemination of 'Pride and Prejudice' in various countries. After searching for related papers in Chinese journals, he doesn't know what to do next. Based on the principle of 'comprehensiveness' in literature review, which of the following actions would you recommend he take?

Options:
A. Use the WorldCat database to query the circulation status of the book in global libraries
B. Use ProQuest Dissertations and Theses (PQDT) to search for related theses on the topic
C. Use Web of Science to search for the citation status of the book in global literature
D. Use the WorldCat database to query the review status of the book in global libraries
E. Use the WorldCat database to query the collection status of the book in global libraries
F. Use the WorldCat database to query the publication status of the book in global libraries
G. Use the WorldCat database to query the citation status of the book in global literature
H. Use the WorldCat database to query the loan status of the book in global libraries
I. Use Global Books in Print to search for the publication status of the book
J. Use the WorldCat database to query the availability of the book in global online platforms
Answer: E
The main methods used by the conservative faction to sabotage the 'Hundred Days' Reform' were ( ).

Options:
A. seizing the military power in the Beijing-Tianjin region
B. undermining the reform edicts by delaying their implementation and spreading misinformation about their content
C. sealing the 'National News' to control public opinion
D. publicly supporting the reform edicts while privately undermining their effectiveness through selective enforcement and bureaucratic delays
E. paying lip service to the reform edicts while secretly defying and finding excuses to obstruct their implementation
F. paying lip service to the reform edicts while secretly defying and finding excuses to resist them
G. controlling the power of personnel appointments
H. paying lip service to the reform edicts while secretly defying and finding excuses to delay their implementation
I. publicly supporting the reform edicts while privately undermining their effectiveness through selective enforcement and bureaucratic obfuscation
J. publicly supporting the reform edicts while privately undermining their effectiveness through bureaucratic delays and selective enforcement
Answer: F
Among the many factors affecting the development of education, the fundamental factor that constrains the scale and speed of educational development is ()

Options:
A. Level of Technology
B. Technological Advancement
C. Technological Infrastructure
D. Economic Infrastructure
E. Political System
F. Level of Productivity
G. Economic Growth Rate
H. Level of Technological Development
I. Production Relations
J. Population Distribution
Answer: F
The Fourth Plenary Session of the 19th CPC Central Committee adopted the Decision of the CPC Central Committee on Upholding and Improving the System of Socialism with Chinese Characteristics and Modernizing China's System and Capacity for Governance, which clearly proposed ( )

Options:
A. Improving a rural governance system that combines self-governance, rule of law, and moral governance under the leadership of the Party organization
B. Improving a grassroots governance system in urban areas that combines self-governance, rule of law, and moral governance under the leadership of the Party organization
C. Establishing and improving a grassroots governance system in urban and rural areas that combines self-governance, rule of law, and moral governance without the leadership of the Party organization
D. Establishing and improving a grassroots governance system in urban areas that combines self-governance, rule of law, and moral governance under the leadership of the Party organization
E. Establishing and improving a grassroots governance system in urban and rural areas that combines self-governance, rule of law, and moral governance under the leadership of the Party organization
F. Improving a rural governance system that combines self-governance, rule of law, and moral governance
G. Establishing and improving a rural governance system that combines self-governance, rule of law, and moral governance under the leadership of the Party organization
H. Establishing and improving a leadership system and working mechanism that combines self-governance, rule of law, and moral governance under the leadership of the Party organization
I. Improving a grassroots governance system in urban and rural areas that combines self-governance, rule of law, and moral governance under the leadership of the Party organization
J. Improving a grassroots governance system in urban and rural areas that combines self-governance, rule of law, and moral governance without the leadership of the Party organization
Answer: I
The fundamental method Marx used in studying political economy is ( )

Options:
A. Materialist Dialectics
B. Mathematical Method
C. Dialectical Historical Materialism
D. Dialectical Materialism and Historical Dialectics
E. Historical Materialism
F. Empirical Analysis Method
G. Historical Dialectics
H. Qualitative Analysis Method
I. Dialectical Materialism
J. Materialist Analysis
Answer: A
If the invariant factors of a numerical matrix $A$ are $1,...,1,lambda,lambda^{2}(lambda-1), (lambda-1)^{3}(lambda^{2}+1)lambda^{2}$, then the elementary divisors of $A$ are ( ).

Options:
A. $lambda,lambda,lambda,lambda^{2},lambda-1,lambda-1, (lambda-1)^{2},lambda^{2}+1$
B. $lambda,lambda^{2},lambda^{2},lambda-1, (lambda-1)^{3},lambda + 2i, lambda - 2i$
C. $lambda,lambda^{2},lambda^{2},lambda-1, (lambda-1)^{3},lambda + 1, lambda - 1$
D. $lambda,lambda^{2},lambda^{2},lambda-1, (lambda-1)^{3},lambda^{2}+1, lambda + 2i, lambda - 2i$
E. $lambda,lambda^{2},lambda^{2},lambda-1,lambda-1, (lambda-1)^{2},lambda^{2}+1$
F. $lambda,lambda^{2},lambda^{2},lambda-1, (lambda-1)^{3},lambda +i, lambda -i$
G. $lambda,lambda^{2},lambda^{2},lambda-1, (lambda-1)^{3},lambda^{2}+1$
H. $lambda,lambda^{2},lambda^{2},lambda-1, (lambda-1)^{3},lambda + 2, lambda - 2$
I. $lambda,lambda^{2},lambda^{2},lambda-1, (lambda-1)^{3},lambda^{2}+1, lambda + 2, lambda - 2$
J. $lambda,lambda^{2},lambda^{2},lambda-1, (lambda-1)^{3},lambda^{2}+1, lambda -i$
Answer: F
Integral $\int_0^1 x^3 e^{-x^2}dx=$

Options:
A. $\frac{1}{2}-\frac{1}{3e}$
B. $\frac{1}{2}+\frac{1}{2e^2}$
C. $\frac{1}{2}-\frac{1}{2e^2}$
D. $\frac{1}{2}+\frac{1}{e^2}$
E. $rac{1}{2}+rac{1}{e}$
F. $\frac{1}{2}-\frac{1}{2e}$
G. $0$
H. $\frac{1}{2}-\frac{1}{e}$
I. $rac{1}{2}+e$
J. $\frac{1}{2}+\frac{1}{2e}$
Answer: H
If the function $y=y(x)$ is determined by the equation ${{text{e}}^{x+y}}=xy+1$, then ( ).

Options:
A. $text{d}x=frac{{{text{e}}^{x+y}}+y}{x-{{text{e}}^{x+y}}}text{d}y$
B. $text{d}x=frac{{{text{e}}^{x+y}}-y}{x-{{text{e}}^{x+y}}}text{d}y$
C. $text{d}x=frac{{{text{e}}^{x+y}}-y}{y-{{text{e}}^{x+y}}}text{d}y$
D. $text{d}x=frac{{{text{e}}^{x+y}}-x}{y-{{text{e}}^{x+y}}}text{d}y$
E. $text{d}x=frac{{{text{e}}^{x+y}}-x}{y+{{text{e}}^{x+y}}}text{d}y$
F. $text{d}x=frac{{{text{e}}^{x+y}}+x}{y+{{text{e}}^{x+y}}}text{d}y$
G. $text{d}y=frac{{{text{e}}^{x+y}}+x}{y+{{text{e}}^{x+y}}}text{d}x$
H. $text{d}y=frac{{{text{e}}^{x+y}}-y}{x-{{text{e}}^{x+y}}}text{d}x$
I. $text{d}y=frac{{{text{e}}^{x+y}}-x}{y-{{text{e}}^{x+y}}}text{d}x$
J. $text{d}x=frac{{{text{e}}^{x+y}}+y}{x+{{text{e}}^{x+y}}}text{d}y$
Answer: D
The difference between the individual value and the social value of a commodity, which capitalists achieve by increasing labor productivity, is

Options:
A. absolute surplus value
B. surplus value
C. additional surplus value
D. excess value
E. excess value rate
F. relative surplus value
G. marginal surplus value
H. incremental surplus value
I. surplus value rate
J. excess surplus value
Answer: J
The reason anaerobic bacteria cannot grow in an oxygen-rich environment:

Options:
A. Lack of a complete electron transport pathway
B. Lack of cell wall
C. Structure is too simple
D. Lack of a complete respiratory enzyme chain
E. Lack of a complete respiratory enzyme pathway
F. Lack of plasmids
G. Lack of a complete electron transport system
H. Lack of mitochondria
I. Lack of a complete electron transport chain
J. Lack of a complete respiratory enzyme system
Answer: J
Indefinite integral $\int\frac{2x+3}{x^2+3x-10} \text{d}x=$

Options:
A. $\ln|x+2|+\ln|x+5|+C$
B. $\ln|x+2|+\ln|x-5|+C$
C. $\ln|x-2|+\ln|x+5|+C$
D. $\ln|x+2|-\ln|x-5|+C$
E. $\ln|x+2|-\ln|x+5|+C$
F. None of the above options is correct
G. $\ln|x-2|-\ln|x+5|+C$
Answer: C
The general solution of the equation $y''+y= \sin x$ is

Options:
A. $y= C_1 x \sin x + C_2 \cos x + \frac{x \cos x}{2}$
B. $y= C_1 \sin x + C_2 \cos x - \frac{x \sin x}{2}$
C. $y= C_1 x \sin x + C_2 \cos x + \frac{x \sin x}{2}$
D. $y= C_1 \sin x + C_2 \cos x + \sin x$
E. $y= C_1 x \sin x + C_2 \cos x - \frac{x \cos x}{2}$
F. $y= C_1 \sin x + C_2 \cos x + rac{x \cos x}{2}$
G. $y= C_1 \sin x + C_2 \cos x + \frac{x \sin x}{2}$
H. $y= C_1 \sin x + C_2 \cos x + \cos x$
Answer: E
Oliguria with short, red, and hot urine, abdominal distension, bitter and sticky mouth, red tongue with yellow greasy coating, rapid pulse. The treatment method is ()

Options:
A. Clearing damp-heat, promoting urination and regulating qi
B. Clearing and discharging lung heat, promoting urination
C. Promoting blood circulation to resolve stasis, promoting urination
D. Clearing damp-heat, regulating qi and promoting urination
E. Warming and tonifying kidney yang, transforming qi and promoting urination
F. Clearing damp-heat, harmonizing the middle and regulating qi
G. Clearing damp-heat, promoting urination
H. Elevating clear and descending turbid, transforming qi and promoting water metabolism
I. Clearing damp-heat, harmonizing the middle and promoting urination
J. Clearing damp-heat, promoting urination and harmonizing the middle
Answer: G
The patient's menstrual cycle is advanced, with heavy flow, red color with clots, lower abdominal distension and pain, irritability, bitter taste and dry throat, red tongue edges and tip, thin yellow coating, and wiry rapid pulse. The correct diagnosis and differentiation is ( )

Options:
A. Menorrhagia, spleen deficiency syndrome
B. Menstrual cycle advanced, liver depression and blood heat syndrome
C. Menstrual cycle advanced, liver depression and damp-heat with blood heat syndrome
D. Menstrual cycle advanced, liver depression and qi stagnation with damp-heat syndrome
E. Menorrhagia, Yang excess and blood heat syndrome
F. Menstrual cycle advanced, liver depression and damp-heat syndrome
G. Prolonged menstruation, blood heat syndrome
H. Menstrual cycle advanced, Yin deficiency and blood heat syndrome
I. Menstrual cycle advanced, liver depression and qi stagnation syndrome
J. Menstrual cycle advanced, liver depression and qi stagnation with blood heat syndrome
Answer: B
The patient's ECG shows ST-segment elevation, but there has been no dynamic change on re-examination, this could be

Options:
A. Angina Pectoris
B. Benign T-Wave Inversion
C. Acute Pericarditis
D. Aortic Dissection
E. Early Repolarization Syndrome
F. Benign Early Repolarization
G. Benign Early Repolarization Variant
H. Pericarditis
I. Acute Myocardial Infarction
J. Acute Coronary Syndrome
Answer: E
An investor holds stocks of ABC Company, with a required rate of return of 15%. It is expected that the dividends of ABC Company will grow at a high rate of 20% for the next 3 years. After that, it will switch to a normal growth rate of 12%. The company recently paid a dividend of 2 yuan. Now, calculate the value of the company's stock.

Options:
A. 91.47
B. 92.56
C. 92.37
D. 91.56
E. 90.23
F. 91.87
G. 92.17
H. 91.67
I. 90.56
J. 91.37
Answer: J
Let `beta_1, beta_2` be two different solutions of the non-homogeneous linear equation system `Ax=beta`, and `alpha_1, alpha_2` be the fundamental solution system of the corresponding homogeneous linear equation system `Ax=0`, `k_1, k_2` be any real numbers, then the general solution of `Ax=beta` is ( )

Options:
A. [{k_1}{alpha _1} + {k_2}({alpha _1} - {alpha _2}) + frac{1}{2}({beta _1} + 3{beta _2})]
B. [{k_1}{alpha _1} + {k_2}({alpha _1} + {alpha _2}) + frac{1}{2}({beta _1} + 2{beta _2})]
C. [{k_1}{alpha _1} + {k_2}({alpha _1} - {alpha _2}) + frac{1}{2}({beta _1} + {beta _2})]
D. [{k_1}{alpha _1} + {k_2}({alpha _1} + {alpha _2}) + frac{1}{2}({beta _1} - {beta _2})]
E. [{k_1}{alpha _1} + {k_2}({beta _1} + {beta _2}) + frac{1}{2}({beta _1} - {beta _2})]
F. [{k_1}{alpha _1} + {k_2}({alpha _1} - {alpha _2}) + frac{1}{2}({beta _1} - 2{beta _2})]
G. [{k_1}{alpha _1} + {k_2}({beta _1} - {beta _2}) + frac{1}{2}({beta _1} + {beta _2})]
H. [{k_1}{alpha _1} + {k_2}({alpha _1} + {alpha _2}) + frac{1}{2}({beta _1} + {beta _2})]
I. [{k_1}{alpha _1} + {k_2}({alpha _1} - {alpha _2}) + frac{1}{2}({beta _1} - {beta _2})]
J. [{k_1}{alpha _1} + {k_2}({alpha _1} + {alpha _2}) + frac{1}{2}({beta _1} - 2{beta _2})]
Answer: C
Lenin's major contribution to the development of Marxist political economy is ( ).

Options:
A. proposed the theory of imperialism as a transitional stage of capitalism
B. founded the theory of surplus value
C. proposed the theory of imperialism as a stage of capitalism
D. founded the theory of imperialism as monopoly capitalism
E. founded the labor value theory
F. proposed the theory of imperialism as a lower stage of capitalism
G. proposed the theory of socialist market economy
H. proposed the theory of imperialism as a higher stage of capitalism
I. proposed the theory of state capitalism
J. proposed the theory of state monopoly capitalism
Answer: D
A candy bar manufacturer is interested in trying to estimate how sales are influenced by the price of their product. To do this, the company randomly chooses 6 small cities and offers the candy bar at different prices. Using candy bar sales as the dependent variable, the company will conduct a simple linear regression on the data below: City Price ($) Sales River Falls 1.30 100 Hudson 1.60 90 Ellsworth 1.80 90 Prescott 2.00 40 Rock Elm 2.40 38 Stillwater 2.90 32 What is the percentage of the total variation in candy bar sales explained by the regression model?

Options:
A. 88.54%
B. 78.89%
C. 78.39%
D. 78.09%
E. 48.19%
F. 100%
G. 77.39%
H. 78.59%
I. 76.39%
J. 79.39%
Answer: C
Jia entered a small supermarket late at night, holding a gun to threaten Shop Assistant Yi, who was sleeping on a chair, to hand over the cash. Yi said, 'The money is in the cash register, and it can only be opened by purchasing goods.' Jia took out 100 yuan and gave it to Yi, saying, 'Here, buy anything.' Yi opened the cash register and handed over all the cash, and Jia grabbed it and ran away. In fact, the cash Yi gave to Jia was only 88 yuan, so Jia 'lost' 12 yuan. Which of the following statements is correct regarding this case?

Options:
A. Despite Jia 'losing' 12 yuan, the act of using a gun to force Yi to hand over the cash still constitutes attempted robbery, not completed robbery.
B. Despite Jia 'losing' 12 yuan, the act of using a gun to force Yi to hand over the cash still constitutes attempted robbery, as the completion is determined by the act of attempting to obtain the money, not the amount.
C. Despite Jia 'losing' 12 yuan, the act of using a gun to force Yi to hand over the cash still constitutes attempted robbery, as the completion is determined by the act of attempting to obtain the money, not the profit.
D. Although Jia entered a small supermarket, Yi was already sleeping on a chair, so Jia's act constitutes household robbery
E. Despite Jia 'losing' 12 yuan, the act of using a gun to force Yi to hand over the cash still constitutes attempted robbery, as the completion is determined by the act of attempting to obtain the money, not the loss of the initial 100 yuan.
F. Despite Jia 'losing' 12 yuan, the act of using a gun to force Yi to hand over the cash still constitutes attempted robbery, as the completion is determined by the act of attempting to obtain the money, not the loss.
G. For gun robbery, there is no need to distinguish between completed and attempted, and the statutory punishment prescribed in the specific provisions should be applied directly
H. Despite Jia 'losing' 12 yuan, the act of using a gun to force Yi to hand over the cash still constitutes completed robbery, as the completion is determined by the act of obtaining the money, not the amount.
I. As long as there is a gun robbery, even if no money is taken, it constitutes completed robbery
J. Although Jia 'lost' 12 yuan and did not profit, it does not constitute failure due to reasons beyond his will, and thus constitutes completed robbery.
Answer: J
Let \(A\) be an \(m \times n\) matrix, \(B\) be an \(n \times m\) matrix, and satisfy \(AB = E\), then ( ).

Options:
A. the row vector set of \(A\) is linearly independent, the column vector set of \(B\) is linearly independent
B. the row vector set of \(A\) is linearly dependent, the column vector set of \(B\) is linearly independent
C. the column vector set of \(A\) is linearly independent, the row vector set of \(B\) is linearly independent
D. the row vector set of \(A\) is linearly independent, the column vector set of \(B\) is linearly dependent
E. the column vector set of \(A\) is linearly independent, the column vector set of \(B\) is linearly independent
F. the column vector set of \(A\) is linearly dependent, the row vector set of \(B\) is linearly independent
G. the row vector set of \(A\) is linearly dependent, the row vector set of \(B\) is linearly dependent
H. the row vector set of \(A\) is linearly independent, the row vector set of \(B\) is linearly independent
I. the column vector set of \(A\) is linearly dependent, the row vector set of \(B\) is linearly dependent
J. the row vector set of \(A\) is linearly independent, the row vector set of \(B\) is linearly dependent
Answer: A
Which of the following choices contains a pair of cells of the B-cell lineage, BOTH OF WHICH display some form of Ig receptor (membrane-bound antibody)?

Options:
A. centrocytes and plasma cells
B. plasma cells and memory cells
C. centroblasts and centrocytes (B cells undergoing selection in the light zone of the follicle)
D. naïve mature B cells and centroblasts (B cells undergoing somatic hypermutation)
Answer: D
Which of the following lignins has the greatest chemical structural change?

Options:
A. Periodate lignin
B. Lignin from hemicellulose decomposition enzyme
C. Lignin from lignocellulose decomposition enzyme
D. Lignin from cellulose decomposition enzyme
E. Nord lignin
F. Lignin from lignocellulose degradation enzyme
G. Dioxane lignin
H. Lignin from lignocellulose oxidation enzyme
I. Lignin from lignocellulose reduction and oxidation enzyme
J. Lignin from lignocellulose reduction enzyme
Answer: A
Let two sets of `n`-dimensional vectors `alpha _1,alpha _2, cdots ,alpha _m` and `beta _1,beta _2, cdots ,beta _m` both have rank `r`, then ( )

Options:
A. The matrices formed by the two sets of vectors as rows are not equivalent.
B. The matrices formed by the two sets of vectors as columns have different ranks but are equivalent.
C. The matrices formed by the two sets of vectors as columns have the same rank but are not necessarily equivalent.
D. The matrices formed by the two sets of vectors as columns have the same determinant but are not necessarily equivalent.
E. The two sets of vectors are definitely not equivalent;
F. The two sets of vectors are definitely equivalent;
G. At least one set of vectors can be linearly represented by the other set;
H. The matrices formed by the two sets of vectors as rows have the same rank but are not necessarily equivalent.
I. The matrices formed by the two sets of vectors as columns are equivalent.
J. The matrices formed by the two sets of vectors as rows are equivalent.
Answer: I
After World War II, the new changes in capitalism are objective facts. Correctly recognizing the essence of the new changes in capitalism is of great significance for deeply grasping the essence and laws of capitalism and firmly upholding the 'Four Confidences'. Regarding the essence of the new changes in capitalism, which of the following options is correct?

Options:
A. The new changes in contemporary capitalism are primarily driven by the internal contradictions within the capitalist system and external pressures from socialist economies.
B. Fundamentally, the new changes in contemporary capitalism are the result of the general laws of human social development and the laws of capitalist economic development.
C. It is a qualitative change in capitalism.
D. Fundamentally, the new changes in contemporary capitalism are the result of the general laws of human social development and the specific economic practices of capitalist states.
E. Fundamentally, the new changes in contemporary capitalism are the result of the general laws of human social development and the specific economic policies of capitalist states.
F. The new changes in contemporary capitalism are primarily driven by technological advancements and shifts in global economic policies.
G. Fundamentally, the new changes in contemporary capitalism are the result of the general laws of human social development and the specific political strategies of capitalist states.
H. Fundamentally, the new changes in contemporary capitalism are the result of the general laws of human social development and the specific policies of capitalist states.
I. It is the result of self-regulation by the capitalist mode of production to adapt to the requirements of productive forces development.
J. The new changes in contemporary capitalism are partial qualitative changes in the capitalist system.
Answer: B
According to Article I of the International Bank for Reconstruction and Development Agreement, the purpose of the World Bank is ()

Options:
A. to promote private foreign investment by means of guarantees or participations in public loans and private investments
B. to facilitate investment for productive purposes, including to assist in the reconstruction and development of members and to encourage the development of the production and resources of underdeveloped countries
C. to promote private foreign investment by means of guarantees or indirect funding to public loans and private investments
D. to provide loan guarantees in conjunction with international loans in other aspects
E. to promote the long-term balanced development of international trade and maintain the balance of international payments by encouraging international investment to develop the productive resources of members
F. to promote private foreign investment by means of guarantees or direct funding to private loans and private investments
G. to promote private foreign investment by means of grants or direct funding to private loans and private investments
H. to promote private foreign investment by means of guarantees or direct funding to public loans and private investments
I. to promote private foreign investment by means of guarantees or participations in private loans and private investments
J. to promote private foreign investment by means of guarantees or indirect funding to private loans and private investments
Answer: I
Let [A = left( {begin{array}{*{20}{c}}1&amp;1&amp;1&amp;11&amp;1&amp;1&amp;11&amp;1&amp;1&amp;11&amp;1&amp;1&amp;1end{array}} right),B = left( {begin{array}{*{20}{c}}4&amp;0&amp;0&amp;00&amp;0&amp;0&amp;00&amp;0&amp;0&amp;00&amp;0&amp;0&amp;0end{array}} right)], then `A` and `B` satisfy_ ( )

Options:
A. Not congruent but similar
B. Congruent and similar
C. Congruent and not similar
D. Congruent and identical
E. Not congruent and similar
F. Congruent but not similar
G. Not congruent and not similar
H. Congruent and congruent
I. Congruent and not congruent
J. Congruent but similar
Answer: B
The permeability of ferromagnetic materials is much greater than that of air gaps, and its significant characteristic is: its permeability changes with the change of ( ).

Options:
A. the magnetic field strength
B. temperature
C. the magnetic field intensity
D. the magnitude of magnetic flux
E. the magnetic reluctance of the magnetic circuit
F. the saturation degree of the magnetic circuit
G. the magnetic flux linkage
H. the magnitude of excitation current
I. the magnetic flux density
Answer: F
The main cause of Tetralogy of Fallot is

Options:
A. right ventricular hypertrophy
B. ventricular septal defect
C. incomplete septation of the bulbus cordis and partial septation of the truncus arteriosus
D. none of the above
E. pulmonary stenosis
F. incomplete septation of the truncus arteriosus and ventricular septal defect
G. partial septation of the truncus arteriosus and ventricular septal defect
H. partial septation of the truncus arteriosus and bulbus cordis
I. incomplete septation of the truncus arteriosus and bulbus cordis
J. uneven septation of the truncus arteriosus and bulbus cordis
Answer: J
The number of partitions p(n) of a positive integer n into distinct parts 1, 2, 3, ... is equal to which of the following options:

Options:
A. The number of partitions q(n) of a positive integer n into odd parts 1, 3, 5, ... without repetition allowed
B. The number of partitions q(n) of a positive integer n into even parts 2, 4, 6, ... with repetition allowed
C. The number of ways to place n indistinguishable balls into n indistinguishable boxes (empty boxes are allowed)
D. The number of partitions q(n) of a positive integer n into odd parts 1, 3, 5, ... with repetition allowed, but each part can appear at most twice
E. The number of partitions q(n) of a positive integer n into odd parts 1, 3, 5, ... with repetition allowed, but each part can appear at most once
F. The number of ways to place n indistinguishable balls into n distinguishable boxes (empty boxes are allowed)
G. The number of partitions q(n) of a positive integer n into odd parts 1, 3, 5, ... with repetition allowed, but each part can appear at most four times
H. The number of partitions q(n) of a positive integer n into even parts 2, 4, 6, ... without repetition allowed
I. The number of partitions q(n) of a positive integer n into odd parts 1, 3, 5, ... with repetition allowed
J. The number of partitions q(n) of a positive integer n into odd parts 1, 3, 5, ... with repetition allowed, but each part can appear at most three times
Answer: I
The primitive function of $(2xcos y-{{y}^{2}}sin x)dx+(2ycos x-{{x}^{2}}sin y)dy$ is ()

Options:
A. {{x}^{2}}sin y-{{y}^{2}}cos x+C
B. {{x}^{2}}cos y-{{y}^{2}}cos x-C
C. ${{x}^{2}}cos y-{{y}^{2}}cos x+C$
D. {{x}^{2}}cos y+{{y}^{2}}sin x+C
E. {{x}^{2}}sin y+{{y}^{2}}cos x-C
F. ${{x}^{2}}sin y-{{y}^{2}}sin x+C$
G. ${{x}^{2}}cos y+{{y}^{2}}cos x+C$
H. ${{x}^{2}}sin y+{{y}^{2}}sin x+C$
I. {{x}^{2}}sin y-{{y}^{2}}cos x-C
J. {{x}^{2}}cos y-{{y}^{2}}sin x+C
Answer: G
The Xinhai Revolution is referred to as an "incomplete revolution" or a "failed revolution," mainly because ( )

Options:
A. it did not establish a democratic republic
B. it did not establish a stable and effective government
C. it did not abolish the imperial system
D. it did not lead to significant political and social changes
E. it did not establish a fully functional democratic system
F. it did not propose a complete revolutionary program
G. it did not eliminate the Qing Dynasty
H. it did not fulfill the requirements of a democratic revolution
I. it did not establish a democratic government that lasted more than a few years
J. it did not achieve widespread social and economic reforms
Answer: H
Regarding the monotonicity of the function \( y = \frac{x^2}{1 + x} \), which of the following statements is correct?

Options:
A. It is monotonically increasing on \( (-\infty, -2) \)
B. It is monotonically increasing on \( (-1, 0) \)
C. It is monotonically decreasing on \( (-1, 0) \)
D. It is monotonically increasing on \( (-2, -1) \)
E. It is monotonically decreasing on \( (-2, -1) \)
F. It is monotonically decreasing on \( (-\infty, -2) \)
G. It is monotonically decreasing on \( (-\infty, -1) \)
H. It is monotonically increasing on \( (-2, 0) \)
I. It is monotonically increasing on \( (0, +\infty) \)
J. It is monotonically decreasing on \( (-2, 0) \)
Answer: A
A company, as a general taxpayer of value-added tax (VAT), is subject to a VAT rate of 16%. The company entrusts another unit (also a general VAT taxpayer) to process a batch of raw materials that are taxable consumer goods (not gold or silver jewelry). This batch of entrusted processed raw materials will be used for the continued production of taxable consumer goods after recovery. The cost of the materials dispatched is 3 million yuan, the processing fee paid excluding VAT is 1 million yuan, the VAT paid is 160 thousand yuan, and the consumption tax collected and paid on behalf by the entrusted party is 300 thousand yuan. The cost of this batch of raw materials, which has been processed and inspected and stored, is ( ) million yuan.

Options:
A. 416.3
B. 416.8
C. 416.4
D. 417
E. 317
F. 416.2
G. 416.5
H. 400
I. 430
J. 416
Answer: H
The net amount of annual credit sales forecasted by a company is 360000 yuan, with an accounts receivable turnover period of 30 days, a variable cost rate of 70%, and a capital cost rate of 7%. Calculate the opportunity cost of accounts receivable ( ) yuan.

Options:
A. 1500
B. 1460
C. 1490
D. 1470
E. 1475
F. 1510
G. 1485
H. 1472
I. 1450
J. 1480
Answer: D
Let ${{\rm{X}}_1},{{\rm{X}}_2},...,{{\rm{X}}_9},{{\rm{Y}}_1},{{\rm{Y}}_2},{{\rm{Y}}_9}$ be a simple random sample from a normal population, the distribution of $\frac{{{{\rm{X}}_1}{\rm{ + }}{{\rm{X}}_2}{\rm{ + }}...{\rm{ + }}{{\rm{X}}_9}}}{{\sqrt {{{\rm{Y}}^2}_1{\rm{ + }}{{\rm{Y}}^2}_2{\rm{ + }}...{\rm{ + }}{{\rm{Y}}^2}_9} }}$ is

Options:
A. $t(2)$
B. $t(3)$
C. $t(4)$
D. $t(11)$
E. $t(5)$
F. $t(10)$
G. $t(8)$
H. $t(7)$
I. $t(9)$
J. $t(6)$
Answer: I
Which of the following conditions are necessary for the existence of the Fourier transform?

Options:
A. The function satisfies absolute integrability on a finite interval of the real line R
B. The function has a finite number of discontinuities in any finite interval
C. The function has a finite number of discontinuities and is bounded on the real line R
D. The function has a finite number of discontinuities and is absolutely integrable on the real line R, but not necessarily bounded
E. The function has a finite number of discontinuities and maxima in any finite interval
F. The function has a finite number of discontinuities and is absolutely integrable on the real line R
G. The function has a finite number of maxima and minima in any finite interval
H. The function satisfies absolute integrability on the real line R
I. The function has a finite number of maximum and minimum values in any finite interval
J. The function satisfies absolute integrability on a finite interval of the real line R, but not necessarily on the entire real line R
Answer: H
Compared to worldviews such as common sense, religion, art, and science, what is the most prominent feature of philosophy?

Options:
A. Aesthetic
B. Critical
C. Introspective
D. Speculative
E. Analytical
F. Evaluative
G. Reflective
H. Empirical
I. Contemplative
J. Compliance
Answer: G
SCDL is ( ) on the E-8C reconnaissance aircraft, which sends messages and radar-acquired moving target and image data from the aircraft to the ground station, and transmits service requests from the ground station to the E-8C platform, while also relaying data between ground stations.

Options:
A. secure communication link
B. secure data link
C. tactical data link
D. secure dedicated data transmission link
E. dedicated data link
F. broadband data link
G. secure dedicated link
H. secure dedicated data link
I. secure dedicated communication link
J. TCDL
Answer: E
Calculate $int_{L}{({{x}^{2}}+{{y}^{2}})dx+({{x}^{2}}-{{y}^{2}})dy}$, where $L$ is $y=1-|1-x|, xin [0,2]$ (the positive direction of the curve is the direction of increasing $x$).

Options:
A. $frac{6}{3}$
B. $frac{4}{3}$
C. $frac{2}{3}$
D. $frac{1}{3}$
E. $frac{7}{3}$
F. $frac{5}{3}$
G. $frac{14}{3}$
H. $\frac{10}{3}$
I. $frac{8}{3}$
J. $frac{16}{9}$
Answer: B
Which of the following substances can be synthesized from arachidonic acid through the lipoxygenase pathway?

Options:
A. DAG
B. LTs
C. PAF
D. PGI2
E. PGD2
F. LTA4
G. LTB5
H. IP3
I. LTB4
Answer: B
Let $D=left{ left. (x,y) right|0leqslant xleqslant y,0leqslant yleqslant 1 right}$, then $iintlimits_{D}{frac{y}{sqrt{{{x}^{2}}+{{y}^{2}}}}}text{d}sigma =$( ).

Options:
A. $frac{1}{2}lnleft(2sqrt{2}+1right)$
B. $frac{1}{2}lnleft(sqrt{2}-1right)$
C. $frac{1}{2}lnleft(2sqrt{2}-1right)$
D. $frac{pi}{4}$
E. $frac{1}{2}lnleft(2+sqrt{3}right)$
F. $frac{sqrt{2}}{2}$
G. $frac{sqrt{2}}{2}+frac{1}{4}lnleft(3+2sqrt{2}right)$
H. $frac{1}{2}lnleft(2+sqrt{2}right)$
I. $frac{1}{2}lnleft(1+sqrt{2}right)$
J. $frac{1}{2}lnleft(sqrt{2}+1right)$
Answer: J
The main mechanism by which influenza virus escapes immune clearance is ( )

Options:
A. antigenic stability
B. antigenic shift
C. antigenic drift
D. integrating into the host cell genome
E. producing toxins
F. producing immune inhibitory factors
G. genetic reassortment
H. antigenic variation
I. destroying immune effector cells
J. genetic mutation
Answer: H
Let the quadratic form \( f(x_1,x_2,x_3) = ax_2^2 -4x_1x_2+2bx_1x_3+ 4x_2x_3 \) (where \( a \) and \( b \) are integers), the sum of the eigenvalues of the matrix of the quadratic form is 3, and the product of the eigenvalues is 5, then its standard form is ()

Options:
A. \( f = - y_1^2 + y_2^2 - 5y_3^2 \)
B. f = - y_1^2 + y_2^2 + 3y_3^2
C. \( f = - y_1^2 + y_2^2 + 5y_3^2 \)
D. \( f = - y_1^2 - y_2^2 - 5y_3^2 \)
E. \( f = - y_1^2 - y_2^2 + 5y_3^2 \)
F. f = - y_1^2 + y_2^2 - 3y_3^2
G. \( f = y_1^2 + y_2^2 + 5y_3^2 \)
H. f = y_1^2 + y_2^2 - 3y_3^2
I. \( f = y_1^2 + y_2^2 - 5y_3^2 \)
J. \( f = y_1^2 - y_2^2 + 5y_3^2 \)
Answer: E
From around 3000 BC to 1200 BC, Persia entered the Bronze Age, and the Elamite Kingdom [around 2500 BC] appeared in the southwestern part of the Iranian Plateau. The pottery that prevailed during this period is known as ______.

Options:
A. Elamite type
B. Kamareh type
C. Hafra type
D. Halaf type
E. Susian type
F. Susa type
G. Hissar type
Answer: F