MikaStars39/nano-eval huggingface dataset:
The day after the successful launch of China's Shenzhou-5 manned spacecraft, Mengniu Company fully launched astronaut-specific milk for the general public. Prior to this, Mengniu milk had undergone strict evaluation and review by the space food administration department and had sponsored the space program. What is your view on this? ()

Options:
A. This is Mengniu Company's strategic move to align with national pride and enhance brand loyalty among consumers
B. This is Mengniu Company's strategic move to align with national pride and enhance brand loyalty among consumers, but it may also be seen as a reactive and opportunistic strategy
C. This is a reactive move by Mengniu Company and has an attention-seeking flavor
D. Mengniu Company's behavior will not increase product sales and will definitely cause consumer resentment
E. As one of China's top four dairy companies, Mengniu is more forward-thinking than the other three companies and willing to invest
F. This is Mengniu Company's years-long careful planning to comprehensively build its corporate image and promote products
G. This is Mengniu Company's strategic move to capitalize on the national success and boost short-term sales
Answer: F
What are the typical power consumptions of TTL and ECL?

Options:
A. 10 mW per gate, 25 to 68 mW per gate
B. 10 mW per gate, 25 to 62 mW per gate
C. 10 mW per gate, 25 to 55 mW per gate
D. 10 mW per gate, 25 to 50 mW per gate
E. 10 mW per gate, 25 to 65 mW per gate
F. 10 mW per gate, 25 to 60 mW per gate
G. 10 mW per gate, 25 to 58 mW per gate
H. 10 mW per gate, 25 to 63 mW per gate
I. 10 mW per gate, 25 to 70 mW per gate
J. 10 mW per gate, 25 mW per gate
Answer: F
The force that can be applied by the actuator will depend on its stroke. Under what condition of a magnetic force (N), a pull-type linear solenoid actuator from Magnet Schultz (R16xR16, 24V10%) is speciﬁed when the duty cycle is 10% and the maximum time of 60 s with a stroke of 8 mm giving a force of 8.3 N and a stroke of 20 mm.

Options:
A. 2.7
B. 2.9
C. 2.8
D. 2.6
E. 2.2
F. 2.3
G. 2.1
H. 2.5
I. 2.0
J. 2.4
Answer: D
Given an incompressible density of 3300 $kg/m^3$, if it forms a regular melted state with radius r, what is the ratio of its radii?

Options:
A. 0.8
B. 0.84
C. 0.77
D. 0.79
E. 0.83
F. 0.75
G. 0.85
H. 0.82
I. 0.81
J. 0.78
Answer: A
Assuming $\gamma_e=2$ for the Earth's core, estimate $C_e$ for iron at T=4000°K and P=2 megabars ($2\times10^{11}$ Pascal).

Options:
A. $C_e = 165$ J/kg·K
B. $C_e = 150$ J/kg·K
C. $C_e = 163$ J/kg·K
D. $C_e = 158$ J/kg·K
E. $C_e = 155$ J/kg·K
F. $C_e = 162$ J/kg·K
G. $C_e = 168$ J/kg·K
H. $C_e = 157$ J/kg·K
I. $C_e = 160$ J/kg·K
J. $C_e = 170$ J/kg·K
Answer: I
If Mercury's effective Reynolds number Q is 200, how long would it take for tidal friction to stop its rotation?

Options:
A. $1.3\times10^{10}$ years
B. $1.3\times10^9$ years
C. $1.3\times10^6$ years
D. $1.3\times10^7$ years
E. $1.3\times10^5$ years
F. $1.3 \times10^8$ years
G. $1.3\times10^{14}$ years
H. $1.3\times10^{12}$ years
I. $1.3\times10^{11}$ years
J. $1.3\times10^{13}$ years
Answer: B
On days when the atmospheric pressure is 750 mm Hg, the low pressure pressure gauge of the refrigerator shows a vacuum of 10 mm Hg. What is the low pressure absolute pressure of the refrigerator kgf/cm²?

Options:
A. 0.891
B. 0.883
C. 0.893
D. 0.921
E. 0.874
F. 0.912
G. 0.881
H. 0.902
I. 0.873
J. 0.865
Answer: B
There is a freon-12 heat pump device with 0°C air as the heat source, t_k=48°C, t_0=-10°C, the temperature of the liquid refrigerant before the expansion valve is 46°C, and the superheat of the compressor suction steam is 10°C, in order to obtain the heating capacity of 20,000 kcal/hour, ask the heat coefficient of the heat pump device in the cycle is what?

Options:
A. 4.24
B. 4.18
C. 4.22
D. 4.25
E. 4.32
F. 4.12
G. 4.26
H. 4.15
I. 4.20
J. 4.28
Answer: C
Freon - 22 when $t_0 $= - 10 ° C dry saturated steam specific volume is $v_1 '$after = 0.0651 m/kg, $t_0 $= - 10 ° C saturation pressure of saturation temperature change is $(p / Δ Δ t) _ {t_0 = - 10 ° C} $= 0.1261 kg/cm squared / ° C. When $t_0 $= to 50 ° C, $v_2 '$after = 0.323 m/kg, $(p / Δ Δ t) _ {t_0 = - 50 ° C} $= 0.0332 KGF/cm squared / ° C. Let the mass flow rate of refrigerant required for $t_0$=-50°C and $t_0$=-10°C be the same. Ask how many times of the inner diameter of the suction tube of the compressor when the evaporation temperature is -50°C? The required pipe length is the same.

Options:
A. 1.83
B. 1.85
C. 1.7
D. 1.9
E. 1.5
F. 1.75
G. 1.81
H. 1.6
I. 1.82
J. 1.8
Answer: J
There is an evaporative condenser for ammonia refrigeration device, which is composed of six layers of 25 rows of 4 $\text{inch}$ smooth coils, and the length of each pipe is $7.2 \text{m}$($1.2 \text{m} \times 6$). The wind speed of the coil is $3 \text{m/s}$, the air dry bulb temperature is $30°C$, the wet bulb temperature is $27°C$, and the ammonia condensing temperature is $35°C$. The row tube is arranged in a fork row, and the spacing of the tubes is $50 \text{mm}$. How much condensing capacity can the condenser have?

Options:
A. 25166 Kcal/h
B. 25356 Kcal/h
C. 25106 Kcal/h
D. 25156 Kcal/h
E. 24956 Kcal/h
F. 25146 Kcal/h
G. 25056 Kcal/h
H. 25456 Kcal/h
I. 25256 Kcal/h
J. 25206 Kcal/h
Answer: D
A single-frequency spherical source radiates a harmonic spherical wave into free space with a power of 10 watts and a frequency of 1000 Hz. The sound pressure amplitude is ().

Options:
A. $$\frac{5}{12 \pi}$$
B. $$\frac{5}{16 \pi}$$
C. $$\frac{5}{14 \pi}$$
D. $$\frac{5}{9 \pi}$$
E. $$\frac{5}{6 \pi}$$
F. $$\frac{5}{7 \pi}$$
G. $$\frac{5}{4 \pi}$$
H. $$\frac{5}{11 \pi}$$
I. $$\frac{5}{8 \pi}$$
J. $$\frac{5}{10 \pi}$$
Answer: I
In the early stage of a food processing company, the factory director placed great emphasis on clean production and maintaining good sanitary conditions. As market development expanded and products increased, leadership was frequently away, causing workplace hygiene to become inconsistent and even affecting product quality rates. To ensure sustainable development, the director invited a management consulting firm to implement "5S" on-site management. Many staff members were skeptical, questioning how paying a consulting firm for cleaning could be considered scientific. However, actions speak louder than words. After implementing diagnostic consulting, solution design, and guided implementation of 5S activities, the workplace was transformed. Everyone gained a new understanding of management consulting's value and summarized its scientific nature in the following four points, among which one is inaccurate ():

Options:
A. The entire 5S management consulting follows the basic principles of management science and other related sciences
B. The 5S management consulting process is primarily driven by the initial diagnostic phase, with subsequent phases playing a minor role
C. The 5S activity implementation plan is highly targeted, following the principle of "one key opens one lock"
D. The cooperation between enterprise leadership and the consulting firm determines the outcome
E. The 5S management consulting process adheres to a progression from surface to depth, separating truth from falsehood, and seeking truth from facts
Answer: D
Recently, Manager Wang has been visibly troubled. Conflicts frequently arise between different departments in the company, with department heads often coming to him to complain, voice grievances, or ask him to mediate issues with other departments. As a result, he has spent considerable time and energy coordinating relationships between departments. After lengthy contemplation, he discovered that the root cause of this situation is the frequent conflicts between different departmental objectives, and this phenomenon reflects

Options:
A. Decomposability of objectives
B. Inconsistency of objectives
C. Complexity of objectives
D. Multiplicity of objectives
E. Hierarchy of objectives
F. Objectives form a network system
Answer: B
If nucleosynthesis processes only produced $I^{127}$ and $I^{129}$ abundances at equal rates until time t, after which synthesis stopped, and at time $t_1$ $Xe^{129}$ began accumulating in a specific random medium, what is the relationship for the ratio $(Xe^{129}/I^{127})$ afterwards?

Options:
A. For $t\ll2\tau$: $Xe^{129}/I^{127} = e^{-t}(1-e^{-t/2})$
For $t\gg2\tau$: $Xe^{129}/I^{127} = e^{-t/\lambda\tau}$
B. For $t\ll2\tau$: $Xe^{129}/I^{127} = e^{-t/2}(1-e^{-t/4})$
C. For $t\ll2\tau$: $Xe^{129}/I^{127} = e^{-t/2}(1-e^{-t})$
D. For $t\ll2\tau$: $Xe^{129}/I^{127} = e^{-t/2}(1-e^{-t/3})$
E. For $t\ll2\tau$: $Xe^{129}/I^{127} = e^{-t/2}(1-e^{-2t})$
F. For $t\ll2\tau$: $Xe^{129}/I^{127} = e^{-t}(1-e^{-2t})$
Answer: A
A step-index multimode fiber with numerical aperture of 0.24 supports approximately 985 guided modes at 0.85μm wavelength. Calculate:
What is the core diameter of this optical fiber?
How many propagation modes can it support at 1.31mm wavelength?
How many propagation modes can it support at 1.55μm wavelength?

Options:
A. 25,414,296
B. 23,158,467
C. 19,647,823
D. 50,414,296
E. 28,945,631
F. 34,269,857
G. 15,782,943
H. 27,534,918
I. 50,415,297
J. 50,414,297
Answer: D
Calculate the heat of reaction at 1000 K for 4Al(l) + 3O₂(g) = 2Al₂O₃(s)

Options:
A. -2091.53
B. -3012.77
C. -1693.22
D. -1945.18
E. -1752.64
F. -1488.95
G. -2156.44
H. -2533.81
I. -2847.36
J. -3332.48
Answer: C
Which of the following sequences is not a degree sequence of a graph?
I. (3, 3, 3, 1, 0, 0)
II. (3, 2, 1, 1, 1, 0)
III. (1, 1, 1, 2, 1, 1)
IV. (2, 2, 2, 2, 2, 2)
V. (3, 2, 2, 3, 1, 1)
VI. (1, 0, 0, 3, 2, 2)
VII. (2, 2, 2, 2, 1, 7)
VIII. (1, 2, 2, 4, 3, 3)

Options:
A. I,VI
B. II,VII
C. I,IV
D. II,VI
E. II,V
F. IV,VII
G. I,VII
H. IV,V
I. III,VIII
J. V,VI
Answer: I
In which aspects were the main social contradictions in British society during the 1830s most evident? ()
A. The controversy over the Corn Laws
B. The debate over the monetary and credit system
C. The struggle for parliamentary reform
D. Land ownership reform

Options:
A. I,III,IV
B. II,IV
C. I,IV
D. I,II
E. III,IV
F. I,II,III
G. I,III
H. II,III
Answer: F
Among the following statements, which one(s) violate(s) the basic laws of formal logic ( ):
I. All passengers on this aircraft are foreigners, but there is one Chinese person
II. All passengers on this aircraft are non-foreigners, but there is one British person
III. Not all passengers on this aircraft are foreigners, and not all passengers are non-foreigners
IV. Not all passengers on this aircraft are foreigners, but this doesn't mean that some passengers are non-foreigners
V. Not all passengers on this aircraft are foreigners, but there are indeed some passengers who are foreigners

Options:
A. I,II,III
B. II,IV,V
C. I,II,IV
D. II,III,IV
E. III,IV,V
F. I,II,V
G. I,III,IV
H. I,III,V
I. II,III,V
J. I,IV,V
Answer: C
Which of the following categories can broadly classify the fruit varieties in Shigatse region? ()
I. Agricultural area fruit varieties
II. Pastoral area fruit varieties
III. Forest area fruit varieties
IV. Mountain area fruit varieties

Options:
A. II,III
B. I,II
C. I,IV
D. III,IV
E. II,IV
F. I,III
G. I,II,III
Answer: G
If the Greenland ice sheet (75°N) melts 100 cubic kilometers of ice annually, and the meltwater is distributed evenly across Earth's surface without any other disturbances or adjustments, assuming an ice density of 920 kg/m³, calculate the angle of polar migration.

Options:
A. $8.9 \times 10^{-4} \ \text{arcsec}$
B. $9.1 \times 10^{-4} \ \text{arcsec}$
C. $3.9 \times 10^{-4} \ \text{arcsec}$
D. $2.6 \times 10^{-4} \ \text{arcsec}$
E. $1.8 \times 10^{-4} \ \text{arcsec}$
F. $4.8 \times 10^{-4} \ \text{arcsec}$
G. $6.5 \times 10^{-4} \ \text{arcsec}$
H. $8.4 \times 10^{-4} \ \text{arcsec}$
I. $5.2 \times 10^{-4} \ \text{arcsec}$
J. $7.3 \times 10^{-4} \ \text{arcsec}$
Answer: J
If Mercury's effective tidal Q factor is 200, how long would it take for tidal friction to stop its rotation? Given that the strain amplitude $\varepsilon=2.5 \times 10^{-7}$ and the rough estimate of Mercury's mean effective rigidity $\mu{\approx}10^{11}Pa$.

Options:
A. $9.6 \times 10^12 \, \text{years}$
B. $6.1 \times 10^8 \, \text{years}$
C. $2.8 \times 10^8 \, \text{years}$
D. $4.5 \times 10^7 \, \text{years}$
E. $2.4 \times 10^2 \, \text{years}$
F. $7.4 \times 10^7 \, \text{years}$
G. $1.3 \times 10^9 \, \text{years}$
H. $5.2 \times 10^7 \, \text{years}$
I. $3.7 \times 10^8 \, \text{years}$
J. $8.9 \times 10^7 \, \text{years}$
Answer: G
For each of the following pairs of sentences, determine whether or not the sentences are logically equivalent.
a.	(p ⇒ q ∨ r) and (p ∧ q ⇒ r)	

b.	(p ⇒ (q ⇒ r)) and (p ∧ q ⇒ r)	

c.	(p ∧ q ⇒ r) and (p ∧ r ⇒ q)	

d.	((p ⇒ q ∨ r) ∧ (p ⇒ r)) and (q ⇒ r)	

e.	((p ⇒ q) ∨ (q ⇒ r)) and (p ∨ ¬p)

Options:
A. nonequivalent, equivalent, nonequivalent, equivalent, nonequivalent
B. equivalent, nonequivalent, nonequivalent, equivalent, nonequivalent
C. nonequivalent, nonequivalent, nonequivalent, equivalent, equivalent
D. equivalent, nonequivalent, equivalent, nonequivalent, equivalent
E. equivalent, equivalent, equivalent, nonequivalent, nonequivalent
F. equivalent, equivalent, nonequivalent, equivalent, equivalent
G. equivalent, nonequivalent, equivalent, nonequivalent, nonequivalent
H. nonequivalent, nonequivalent, equivalent, nonequivalent, equivalent
I. nonequivalent, equivalent, nonequivalent, nonequivalent, equivalent
J. nonequivalent, equivalent, equivalent, nonequivalent, nonequivalent
Answer: I
Logical equivalence, logical entailment, and logical consistency are related to each other in interesting ways, but they are not identical. Answer the following true or false questions about the relationships between these concepts.
a.	If φ is equivalent to ψ, then φ entails ψ.	

b.	If φ is equivalent to ψ, then φ is consistent with ψ.	

c.	If φ entails ψ, then φ is equivalent to ψ.	

d.	If φ entails ψ, then φ is consistent with ψ.	

e.	If φ is consistent with ψ, then φ is equivalent to ψ.	

f.	If φ is consistent with ψ, then φ entails ψ.

Options:
A. true, true, false, true, false, false
B. false, true, false, false, true, true
C. false, false, false, true, true, true
D. true, false, false, false, false, false
E. true, true, true, false, false, false
F. false, false, true, true, true, false
G. true, false, false, true, false, true
H. true, false, true, false, false, false
I. false, true, false, true, false, false
J. true, true, false, false, false, false
Answer: D
Consider a language with two object constants a and b and one function constant f. For each of the following sentences in this language, say which of the alternatives shown is its clausal form.
1.	∃y.∀x.p(x,y)	

A. {p(a, y)}
B. {p(c, y)}
C. {p(x, b)}
D. {p(x, c)}
E. {p(x, f(x))}
F. {p(x, g(x))}
2.	∀x.∃y.p(x,y)	
A. {p(a, y)}
B. {p(c, y)}
C. {p(x, b)}
D. {p(x, c)}
E. {p(x, f(x))}
F. {p(x, g(x))}


3.	∃x.∃y.(p(x,y) ∧ q(x,y))	
A. {p(a, b), q(a, b)}
B. {p(a, b)} and {q(a, b)}
C. {p(c, d), q(c, d)}
D. {p(c, d)} and {q(c, d)}
E. {p(x, y), q(x, y)}
F. {p(x, y)} and {q(x, y)}


4.	∀x.∀y.(p(x,y) ⇒ q(x))	
A. {¬p(a, b), q(a)}
B. {¬p(c, d), q(c)}
C. {¬p(x, b), q(x)}
D. {¬p(x, d), q(x)}
E. {¬p(x, y), q(x)}
F. {¬p(x, g(x)), q(x)}

5.	∀x.(∃y.p(x,y) ⇒ q(x))	
A. {¬p(a, b), q(a)}
B. {¬p(c, d), q(c)}
C. {¬p(x, b), q(x)}
D. {¬p(x, d), q(x)}
E. {¬p(x, y), q(x)}
F. {¬p(x, g(x)), q(x)}

Options:
A. E,E,A,B,B
B. B,B,F,F,D
C. D,E,C,C,C
D. F,D,B,D,D
E. A,A,A,D,F
F. E,E,E,F,F
G. D,F,D,E,E
H. C,C,E,A,A
I. C,D,B,B,C
J. F,C,C,E,B
Answer: G
Let $S=\{x_{1} \,, \, \, \, x_{2} \,, \, \, \cdots, \, \, \, x_{n} \}$ be a set of points in a plane, where the distance between any two points is at least 1. Therefore, there are at most _____ pairs of points with a distance of exactly $1$.

Options:
A. $n−1$
B. $2n-1$
C. $n+3$
D. $n+1$
E. $3n−6$
F. $2n+2$
G. $5n-8$
H. $2n$
I. $4n-2$
J. $3n$
Answer: J
The first journalism - related book written by a Chinese himself/herself is ()

Options:
A. "Applied Journalism" by Ren Baitao
B. "Press and Politics" by Chen Xueping
C. "Elements of Reporting" by Wang Taomin
D. "Principles of News Writing" by Zhang Jiluan
E. "Practical Applied Journalism" by Shao Piaoping
F. "Modern Press Studies" by Huang Yanpei
G. "A History of Chinese Newspapers" by Ge Gongzhen
H. "Theory of Journalism" by Lin Yutang
I. "An Outline of Journalism" by Xu Baohuang
J. "News Gathering Guide" by Yu Dafu
Answer: I
Which of the following dances originated in the African continent and was later influenced by other cultures to form a unique style? ()

Options:
A. Mambo
B. Salsa
C. Tango
D. Waltz
E. Rumba
F. Samba
G. Swing
H. Foxtrot
I. Polka
J. Jazzo
Answer: F
Which of the following statements about journalism are correct? 1. The emergence of news activities in primitive society was driven by humanity's need for survival and development. 2. The standard for measuring public opinion is the direct result of its impact on social practice. 3. The study of media communication effects has gone through two stages: strong effects and moderate effects. 4. The communication model proposed by Lazarsfeld is "mass media → audience," completely ignoring the intermediary role of opinion leaders. 5. Deferred news refers to the delayed reporting of events that have already occurred.

Options:
A. 1
B. 1,2,5
C. 2,4,5
D. 3
E. 2,3,5
F. 3,4,5
G. 1,3,5
H. 2,3,4
I. 1,4,5
J. 1,2,4
Answer: A
In which aspects is the relationship between news media and public opinion orientation reflected? 1. Reflecting and representing public opinion 2. Triggering public opinion 3. Guiding public opinion 4. Influencing public opinion 5. Deciding public opinion

Options:
A. 2
B. 1,2,3
C. 2,3,4
D. 1,4
E. 1,3,4
F. 1,2,4
G. 2,4
H. 2,3
I. 1
J. 3,4
Answer: B
Which of the following statements about dance studies are correct?
1. According to Danto's definition, context is an art world with modern aspects
2. "La Bayadère" is a ballet created during the French July Revolution
3. The ballet "Sylvia" is a dance drama created during the Paris Commune period in 1871
4. Korean court dance, when calculated according to temporal principles, does not belong to secondary civilization

Options:
A. 1,3
B. 1,4
C. 1,2,4
D. 2,3
E. 1,2,3
F. 3
G. 4
H. 3,4
I. 1,2,3,4
J. 2,4
Answer: H
Establish the combustion reaction equation for an illuminant consisting of $\mathbf{Ba}(\mathrm{NO}_{3})_{2}$ 75.3%, Mg 20.7%, and phenolic resin 4%.

Options:
A. $$
\begin{aligned} {{}} & {{} {{} {{\bf1 4. 4 B a ( N O_{3} )_{2} \,+\, 4 3. 2 M g \,+\, C_{1 3} H_{1 2} O_{3}}}}} \\ {{}} & {{} {{} {{\bf1 4. 4 B a O \,+\, 4 3. 2 M g O \,+\, 1 4. 4 N_{2} \,+\, 6 H_{2} O \,+\, 1 3 C O_{3}}}}} \\ \end{aligned}
$$
B. $$
\begin{aligned} {{}} & {{} {{} {{\bf1 4. 4 B a ( N O_{3} )_{2} \,+\, 4 3. 2 M g \,+\, C_{1 3} H_{1 2} O_{2}}}}} \\ {{}} & {{} {{} {{\bf1 4. 4 B a O \,+\, 4 3. 2 M g O \,+\, 1 4. 4 N_{2} \,+\, 6 H_{2} O \,+\, 1 3 C O_{2}}}}} \\ \end{aligned}
$$
C. $$
\begin{aligned} {{}} & {{} {{} {{\bf1 4. 4 B a ( N O_{3} )_{2} \,+\, 4 2. 0 M g \,+\, C_{1 3} H_{1 2} O_{2}}}}} \\ {{}} & {{} {{} {{\bf1 4. 4 B a O \,+\, 4 2. 0 M g O \,+\, 1 4. 4 N_{2} \,+\, 6 H_{2} O \,+\, 1 3 C O_{2}}}}} \\ \end{aligned}
$$
D. $$
\begin{aligned} {{}} & {{} {{} {{\bf1 4. 4 B a ( N O_{3} )_{2} \,+\, 4 3. 2 M g \,+\, C_{1 3} H_{1 4} O_{2}}}}} \\ {{}} & {{} {{} {{\bf1 4. 4 B a O \,+\, 4 3. 2 M g O \,+\, 1 4. 4 N_{2} \,+\, 7 H_{2} O \,+\, 1 3 C O_{2}}}}} \\ \end{aligned}
$$
E. $$
\begin{aligned} {{}} & {{} {{} {{\bf1 5. 2 B a ( N O_{3} )_{2} \,+\, 4 5. 6 M g \,+\, C_{1 3} H_{1 2} O_{2}}}}} \\ {{}} & {{} {{} {{\bf1 5. 2 B a O \,+\, 4 5. 6 M g O \,+\, 1 5. 2 N_{2} \,+\, 6 H_{2} O \,+\, 1 3 C O_{2}}}}} \\ \end{aligned}
$$
F. $$
\begin{aligned} {{}} & {{} {{} {{\bf1 4. 4 B a ( N O_{3} )_{2} \,+\, 4 3. 2 M g \,+\, C_{1 3} H_{1 2} O_{4}}}}} \\ {{}} & {{} {{} {{\bf1 4. 4 B a O \,+\, 4 3. 2 M g O \,+\, 1 4. 4 N_{2} \,+\, 6 H_{2} O \,+\, 1 3 C O_{4}}}}} \\ \end{aligned}
$$
G. $$
\begin{aligned} {{}} & {{} {{} {{\bf1 2. 8 B a ( N O_{3} )_{2} \,+\, 3 8. 5 M g \,+\, C_{1 3} H_{1 2} O_{2}}}}} \\ {{}} & {{} {{} {{\bf1 2. 8 B a O \,+\, 3 8. 5 M g O \,+\, 1 2. 8 N_{2} \,+\, 6 H_{2} O \,+\, 1 3 C O_{2}}}}} \\ \end{aligned}
$$
H. $$
\begin{aligned} {{}} & {{} {{} {{\bf1 4. 4 B a ( N O_{3} )_{2} \,+\, 4 3. 2 M g \,+\, C_{1 4} H_{1 2} O_{2}}}}} \\ {{}} & {{} {{} {{\bf1 4. 4 B a O \,+\, 4 3. 2 M g O \,+\, 1 4. 4 N_{2} \,+\, 6 H_{2} O \,+\, 1 4 C O_{2}}}}} \\ \end{aligned}
$$
I. $$
\begin{aligned} {{}} & {{} {{} {{\bf1 4. 4 B a ( N O_{3} )_{2} \,+\, 4 3. 2 M g \,+\, C_{1 2} H_{1 0} O_{2}}}}} \\ {{}} & {{} {{} {{\bf1 4. 4 B a O \,+\, 4 3. 2 M g O \,+\, 1 4. 4 N_{2} \,+\, 5 H_{2} O \,+\, 1 2 C O_{2}}}}} \\ \end{aligned}
$$
J. $$
\begin{aligned} {{}} & {{} {{} {{\bf1 3. 6 B a ( N O_{3} )_{2} \,+\, 4 0. 8 M g \,+\, C_{1 3} H_{1 2} O_{2}}}}} \\ {{}} & {{} {{} {{\bf1 3. 6 B a O \,+\, 4 0. 8 M g O \,+\, 1 3. 6 N_{2} \,+\, 6 H_{2} O \,+\, 1 3 C O_{2}}}}} \\ \end{aligned}
$$
Answer: B
One day you walk into a room with three doors. There's a note nearby with some clues and information. The specific information is as follows:
Clue 1: The numbers on the three doors are prime numbers greater than 12 and less than 20, and the number on the door with the lion is not the largest.
Clue 2: The green door is not on the far right, and the green door is not adjacent to the purple door.
Clue 3: The wolf is not behind the orange door, and the number on the green door is not the largest.
Clue 4: The number on the purple door is not 17, and the lion is not behind the purple door.
Clue 5: The wolf is not behind the door numbered 13, and the number on the green door is not 17.
Clue 6: The door with the lion is not on the far left, and it is adjacent to the door with the wolf.
Based on these clues, which door contains the lion?

Options:
A. Green door
B. Orange door
C. Cannot be determined
D. Purple door
Answer: B
Which of the following statements is TRUE regarding simple graphs G with |V| ≥ 3?

Options:
A. If G is complete, and |V| >2, then G is Hamiltonian and δ(G) > |V|/2
B. A graph can be Hamiltonian but not have a perfect matching.
C. A graph can have a perfect matching but not be Hamiltonian.
D. If G is a tree, and |V| > 2, then δ(G) < |V|/2
E. If δ(G) > |V|/2, then G is a Hamiltonian graph.
F. If δ(G) ≥ |V|/2, then G is a Hamiltonian graph.
G. If G has a perfect matching, then for any nonempty proper subset S of V, ω(G-S) ≤ |S|.
H. If G has a Hamiltonian cycle, then for any nonempty proper subset S of V, ω(G-S) ≤ |S|.
I. If δ(G) ≥ |V|/2, then G is connected.
J. If δ(G) > |V|/2, then G is connected.
Answer: E
What are the two important ecological functions of forest ecosystems: () and ()?

Options:
A. Nutrient cycling; Soil and water conservation
B. Water storage; Carbon cycling
C. Oxygen release; Temperature balance
D. Nutrient storage; Microclimate regulation
E. Water cycling; Nutrient storage
F. Carbon storage; Climate regulation
G. Air purification; Water conservation
H. Gas exchange; Soil protection
I. Carbon cycling; Water regulation
J. Climate buffering; Biodiversity
Answer: F
According to the way advertising information is communicated, media advertising can generally be divided into which of the following?

Options:
A. Conventional advertising and unconventional advertising
B. Hard advertising and soft advertising
C. Outdoor advertising and internet advertising
D. Print media advertising and new media advertising
Answer: B
Let G be a non-Abelian group and D(G) be a real representation of group G. If D(R) is the matrix representing element R, which of the following matrix operations will give another valid representation of group G?

Options:
A. D(R)ᵀ
B. D(R)†
C. Tr(D(R))
D. D(R⁻¹)
Answer: D
Consider the following statements about fields and groups. How many of these statements are TRUE?
1. If a group G acts faithfully on a set X, then for all g₁, g₂ ∈ G and x ∈ X, g₁x = g₂x implies g₁ = g₂.
2. If H is a normal subgroup of a group G, and the maximal order of elements in H is m, and the maximal order of elements in G/H is n, then the maximal order of elements in G is ≤ mn.
3. If φ: R → R' is a surjective ring homomorphism, and R is an integral domain, then R' is an integral domain.
4. If R is a ring and M and N are left R-modules, then HomR(M,N) is a left R-module.
5. In a unique factorization domain (UFD), every non-zero element can be uniquely written as a product of prime elements.
6. Every cyclic extension K over a field F of degree n is of the form K = F(√a) for some a ∈ F.
7. If L is a field extension of F with intermediate fields K₁ and K₂, and K₁/F and K₂/F are normal extensions, then K₁K₂/F is a normal extension.
8. If L is a Galois extension of F, and K₁ and K₂ are intermediate fields such that K₁/F and K₂/F are Galois extensions, then K₁ and K₂ are Galois over F.
9. For any finite field F and any positive integer n, there exists a unique (up to isomorphism) cyclic extension of F of degree n.
10. If f(x) ∈ F[x] is an irreducible polynomial and there exists a simple zero of f(x) in some field extension of F, then the normal closure of f(x) over F is Galois over F.

Options:
A. 2
B. 8
C. 6
D. 9
E. 3
F. 7
G. 1
H. 0
I. 4
J. 5
Answer: C
Identify the flaw in the following argument:
Claim: Chlorine should not be added to drinking water.
Reasoning: Chlorine is one of the largest chemical contaminants found on Earth, and its potential harm is immense, potentially leading to ecological disasters. Some argue that adding chlorine to drinking water is extremely dangerous, as it will cause direct harm to our health. Certain medical and agricultural industries are already protesting against the use of chlorine in water, due to the belief that chlorine poisoning is caused by excessive chlorine levels in water supplies.
Therefore, adding chlorine to drinking water is a harmful practice.

Options:
A. Missing the Point: While the argument mentions the potential harms of chlorine, it fails to address the benefits it provides in water purification.
B. False Dilemma: The argument presents only two options (adding chlorine is extremely dangerous or not adding it at all) without considering potential benefits or safe levels of chlorination.
C. Red Herring: The argument distracts from the main issue (whether or not to add chlorine to water) with irrelevant information about industrial protests.
D. Appeal to Fear: The argument relies on fear-mongering about ecological disasters and health risks without providing substantial evidence.
E. Circular Reasoning: The conclusion merely restates the premise.
F. Bandwagon Fallacy: The argument uses the fact that certain industries protest against chlorine as evidence against it, rather than presenting scientific evidence.
G. Hasty Generalization: The negative effects of chlorine in some contexts are generalized to all uses of chlorine, including water treatment.
H. Equivocation: The argument uses the word "chlorine" in two different senses-as a general contaminant and as a specific water treatment agent.
I. Straw Man Fallacy: The argument misrepresents the opposing view (that chlorine *should* be added to water) by exaggerating the potential harms.
J. Appeal to Authority: The argument mentions protests from medical and agricultural industries without demonstrating their expertise on water treatment.
Answer: A
The statement "Among all things in the world, humans are the most important. I am human, therefore I am the most important in the world" exhibits a flawed reasoning analogous to which of the following?

Options:
A. Parrots can mimic human speech. I can't mimic human speech. Therefore, I must learn how to mimic human speech.
B. All mammals are warm-blooded. This animal is not warm-blooded. Therefore, this animal is not a mammal.
C. Writers own typewriters, and Mary owns a typewriter. Therefore, Mary must be a writer.
D. Some birds can fly. Penguins are birds. Therefore, penguins can fly.
E. If it rains, the ground gets wet. The ground is wet. Therefore, it rained.
F. Humans possess self-awareness. You don't possess self-awareness. Therefore, you are not human.
G. All cadres must study economics. I am not a cadre, therefore I don't need to study economics.
H. All ducks are real. I am a duck, therefore I am real.
I. All squares are rectangles. This shape is a square. Therefore, this shape is a rectangle.
J. All trees are plants. This is a plant. Therefore, it's a tree.
Answer: I
The attachment of HIV is initiated by the binding of the HIV gp120 molecules to the receptors on the target cells. Then gp120 undergoes a conformational change and binds to a second molecule. What are the molecules on the surface of the infected cells that act as receptors and bind with the lymphotropic HIV?

Options:
A. CD4 and CXCR4 expressed on macrophages
B. CD4 and CXCR4 expressed on T cells
C. CD4 and CCR5 expressed on macrophages
D. CD41 and CCR5 expressed on B cells
E. CD4 and CXCR4 expressed on dendritic cells
F. CD4 and CCR5 expressed on T cells
G. CD41 and CCR5 expressed on T cells
H. CD4 and CXCR4 expressed on B cells
I. CD4 and CCR5 expressed on dendritic cells
J. CD4 and CCR5 expressed on B cells
Answer: B
Given \( y = x \ln x \), then when \( (n > 2) \) \( {y^{(n)}} \) is ( ).

Options:
A. \(\frac{{(-1)^{n+1} (n - 2)!}}{{x^{n - 1}}}\)
B. \( rac{(n - 2)!}{{x^{n - 1}}} \)
C. \(\frac{{(-1)^{n-1} (n - 1)!}}{{x^{n - 1}}}\)
D. \( \frac{{(-1)^n (n - 2)!}}{{x^{n - 1}}} \)
E. \frac{{(-1)^n (n - 3)!}}{{x^{n - 1}}}
F. \( rac{(n - 1)!}{{x^{n - 1}}} \)
G. \(\frac{{(-1)^{n-1} (n - 2)!}}{{x^{n - 1}}}\)
H. \( rac{{(-1)^n (n - 1)!}}{{x^{n - 1}}} \)
I. \(\frac{{(-1)^{n+1} (n - 1)!}}{{x^{n - 1}}}\)
J. \frac{{(-1)^{n-2} (n - 2)!}}{{x^{n - 1}}}
Answer: D
The amortized time complexity for inserting elements into a vector of size n, using a strategy that expands by a fixed amount of memory each time, is:

Options:
A. $Theta(\sqrt{n})$
B. $Theta(n + \sqrt{n})$
C. $Theta(n^2)$
D. $Theta(n + log_2n)$
E. $Theta(n + n)$
F. $Theta(n + 1)$
G. $Theta(nlog_2n)$
H. $Theta(1)$
I. $Theta(n)$
J. $Theta(log_2n)$
Answer: I
The following is used to evaluate the average mutual information from the channel transmitter:

Options:
A. I(X;Y)=H(X)-H(Y|Y)
B. I(X;Y)=H(X)+H(Y)-H(XY)
C. I(X;Y)=H(X)-H(X|Y)
D. I(X;Y)=H(X)-H(Y|X)
E. I(X;Y)=H(X)-H(X|X)
F. I(X;Y)=H(Y)-H(X|X)
G. I(X;Y)=H(Y)-H(Y|X)
H. I(X;Y)=H(Y)-H(X|Y)
I. H(XY)=H(X)+H(Y|X)
Answer: G
An asynchronous motor has a maximum electromagnetic torque, which is the maximum electromagnetic torque that the asynchronous motor can produce when operating steadily under rated conditions. The slip rate corresponding to the maximum electromagnetic torque is ( ).

Options:
A. s=sm
B. s=0.8sm
C. s=1
D. s=0
E. s=1.1sm
F. s=1.2sm
G. s=1.5sm
H. s=0.7sm
I. s=0.5sm
J. s=smax
Answer: A
"Man cannot fully grasp = reflect = depict the entire nature, its 'immediate totality'; man can only approach this goal forever by creating abstractions, concepts, laws, scientific world pictures, etc." This indicates

Options:
A. Man can only recognize specific things around him
B. Any truth can only be an approximately correct, i.e., mostly correct, reflection of the subjective on the objective reality.
C. Any truth can only be an approximately correct, i.e., relatively correct, reflection of the subjective on the objective reality.
D. Any truth can only be an approximately correct, i.e., partially incorrect, reflection of the subjective on the objective reality.
E. Any truth can only be an approximately correct, i.e., conditionally correct, reflection of the subjective on the objective reality.
F. Any truth can only be an approximately correct, i.e., partially correct, reflection of the subjective on the objective reality.
G. Human cognitive abilities cannot reach an understanding of absolute truth
H. Any truth can only be an approximately correct, i.e., somewhat correct, reflection of the subjective on the objective reality.
I. Any truth can only be an exactly correct, i.e., absolutely correct, reflection of the subjective on the objective reality.
J. People cannot achieve a final truthful understanding of nature
Answer: C
Let $S$ be the lower part of the sphere ${{x}^{2}}+{{y}^{2}}+{{z}^{2}}={{R}^{2}}$, and $\overrightarrow{v}=z\vec{k}$. Then $\iint\limits_{s}{\vec{v}\cdot \vec{n}dS}=$

Options:
A. $\frac{2}{3}\pi {{R}^{3}}$
B. -\\frac{1}{4}\\pi {{R}^{3}}
C. -\frac{1}{3}\pi R^{2}
D. $-\\frac{2}{3}\pi {{R}^{3}}$
E. -\frac{1}{2}\pi {{R}^{3}}
F. $-\frac{1}{3}\pi {{R}^{3}}$
G. -\frac{1}{3}\pi R^{4}
H. $\frac{1}{3}\pi {{R}^{3}}$
I. -\\frac{1}{6}\\pi {{R}^{3}}
J. -\frac{1}{3}\pi R^{3}
Answer: D
Among the following methods, the one that can be used to test whether the probability of a specific network structure appearing is greater than the random probability is:

Options:
A. QAP regression with correlation test
B. core-periphery model
C. QAP permutation
D. QAP correlation
E. QAP regression with permutation test
F. QAP regression with permutation test and correlation test
G. ERGM model
H. QAP regression with permutation test and correlation test adjustment
I. QAP regression
J. QAP regression with permutation test and correlation adjustment
Answer: G
In a two-factor ANOVA, factor A has 3 levels, and factor B has 2 levels. The F-test found that both main effects and the interaction effect are significant. Which of the following requires post hoc tests?

Options:
A. Main effects of A and B
B. Only the main effect of A
C. Main effect of B and the interaction effect
D. Main effect of A and the main effect of B
E. Main effect of B and the main effect of A
F. Only the main effect of B
G. Only the interaction effect
H. Main effect of A and the interaction effect
I. Main effect of A and the main effect of B and the interaction effect
J. Main effect of B and the main effect of A and the interaction effect
Answer: H
For a certain overhead line with no height difference, the stress at the lowest point is 90MPa, the span is 200m, the line length is 300m, the sag at the center of the span is 7.5m, and the specific load under a certain meteorological condition is γ=32.251*10^-3MPa/m. The stress at the suspension points is ()MPa.

Options:
A. 96.45
B. 92.56
C. 94.84
D. 90.32
E. 90.74
F. 90.82
G. 99.68
H. 90.24
I. 95.12
J. 90.58
Answer: H
Given a (3 times 5) matrix (A), then the homogeneous system of equations (Ax=0) ( )

Options:
A. must have a unique non-trivial solution
B. may have non-trivial solutions, depending on the rank of matrix A
C. may have a unique non-trivial solution, depending on the rank of matrix A
D. the solution situation cannot be determined because the elements of matrix (A) are unknown
E. may have only the trivial solution, depending on the rank of matrix A
F. must have no solution
G. must have at least one non-trivial solution, but the exact number cannot be determined without more information
H. must have non-trivial solutions
I. may have non-trivial solutions, but the exact number can be determined if the rank of matrix A is known
J. has only the trivial solution
Answer: H
Consider the equation 4x^3 - 6x^2 + 3x - 2 = 0. Which one of the following statements is TRUE?

Options:
A. There is a root between -5 and -20
B. There is a root between 1.5 and 2.5
C. There is no root in R
D. There is a root between 0.5 and 1.5
E. There is a root between 1 and 3
F. There is a root between 0 and 1
G. There is a root between 1.2 and 2.2
H. There is a root between 1 and 2
I. There is a root between 1.1 and 2.1
J. There is a root between 2 and 3
Answer: H
\( \int \arccos x \, dx = \)

Options:
A. \( x rcsin x - \sqrt{1 - x^2} + C \)
B. \( x rccos x + \sqrt{1 - x^2} + C \)
C. x \arccos x + \sqrt{1 - x^2} + C
D. \( -x rccos x - \sqrt{1 - x^2} + C \)
E. -x \arccos x - \sqrt{1 - x^2} + C
F. x \arccos x - \sqrt{1 + x^2} + C
G. x \arccos x + \sqrt{1 - x^2} - C
H. \( x \arccos x - \sqrt{1 - x^2} + C \)
I. x \arccos x - \sqrt{1 - 2x^2} + C
J. -x \arccos x + \sqrt{1 - x^2} + C
Answer: H
$int_{{}}^{{}}{frac{1}{{{x}^{4}}+1}dx}=$

Options:
A. $frac{1}{2sqrt{2}}arctan frac{{{x}^{2}}-1}{sqrt{2}x}-frac{1}{4sqrt{2}}ln left| frac{{{x}^{2}}-sqrt{2}x+1}{{{x}^{2}}+sqrt{2}x+1} right|+C$
B. $frac{1}{2sqrt{2}}arctan frac{{{x}^{2}}-1}{sqrt{2}x}+frac{1}{4sqrt{2}}ln left| frac{{{x}^{2}}-sqrt{2}x-1}{{{x}^{2}}+sqrt{2}x+1} right|+C$
C. $frac{1}{2sqrt{2}}arctan frac{{{x}^{2}}-1}{sqrt{2}x}-frac{1}{4sqrt{2}}ln left| frac{{{x}^{2}}+sqrt{2}x-1}{{{x}^{2}}-sqrt{2}x+1} right|+C$
D. $frac{1}{2sqrt{2}}arctan frac{{{x}^{2}}-1}{sqrt{2}x}+frac{1}{sqrt{2}}ln left| frac{{{x}^{2}}-sqrt{2}x+1}{{{x}^{2}}+sqrt{2}x+1} right|+C$
E. $frac{1}{2sqrt{2}}arctan frac{{{x}^{2}}-1}{sqrt{2}x}-frac{1}{4sqrt{2}}ln left| frac{{{x}^{2}}+sqrt{2}x+1}{{{x}^{2}}-sqrt{2}x+1} right|+C$
F. $frac{1}{2sqrt{2}}arctan frac{{{x}^{2}}-1}{sqrt{2}x}+frac{1}{4sqrt{2}}ln left| frac{{{x}^{2}}+sqrt{2}x+1}{{{x}^{2}}+sqrt{2}x+1} right|+C$
G. $frac{1}{2sqrt{2}}arctan frac{{{x}^{2}}-1}{sqrt{2}x}+frac{1}{4sqrt{2}}ln left| frac{{{x}^{2}}+sqrt{2}x+1}{{{x}^{2}}-sqrt{2}x+1} right|+C$
H. $frac{1}{2sqrt{2}}arctan frac{{{x}^{2}}-1}{sqrt{2}x}+frac{1}{4sqrt{2}}ln left| frac{{{x}^{2}}-sqrt{2}x+1}{{{x}^{2}}-sqrt{2}x+1} right|+C$
I. $frac{1}{2sqrt{2}}arctan frac{{{x}^{2}}-1}{sqrt{2}x}+frac{1}{4sqrt{2}}ln left| frac{{{x}^{2}}-sqrt{2}x+1}{{{x}^{2}}+sqrt{2}x+1} right|+C$
J. $frac{1}{2sqrt{2}}arctan frac{{{x}^{2}}-1}{sqrt{2}x}+frac{1}{4sqrt{2}}ln left| frac{{{x}^{2}}+sqrt{2}x+1}{{{x}^{2}}-sqrt{2}x-1} right|+C$
Answer: A
"When one man rebels and the seven temples are destroyed, he dies at the hands of others and becomes a laughingstock to the world, why is this so? It is because benevolence and righteousness were not practiced, and the situation of attack and defense had changed." This passage discusses:

Options:
A. the fall of the Shang Dynasty
B. the fall of the Qin Dynasty due to internal rebellion
C. the fall of the Zhou Dynasty
D. Wang Mang's usurpation of the Han
E. the fall of the Han Dynasty after Wang Mang's rule
F. the fall of the Qin Dynasty due to external invasion
G. the fall of the Han Dynasty due to internal rebellion
H. the fall of the Qin Dynasty after two generations
I. the fall of the Qin Dynasty due to external pressures and internal rebellion
J. the Eastern Han's overthrow of Xin
Answer: H
If the language defined by grammar G is an infinite set, then the grammar must be ( ).

Options:
A. context-sensitive
B. ambiguous
C. recursive
D. recursively defined
E. context-free
F. unambiguous
G. recursively enumerable
Answer: C
The typical physical sign of pelvic endometriosis is:

Options:
A. tender nodules in the uterine fundus
B. enlarged uterus
C. tender nodules in the uterosacral ligaments
D. tender nodules in the rectouterine pouch
E. cervical motion tenderness
F. tenderness in the adnexal area
G. tender nodules in the anterior fornix
H. tender nodules in the posterior fornix
I. tender nodules in the cul-de-sac
J. uterine tenderness
Answer: D
The main basis for diagnosing well-differentiated squamous cell carcinoma is

Options:
A. Cancer tissue cells show no significant atypia
B. Presence of keratin pearls and intercellular bridges
C. Presence of keratin pearls and mild intercellular bridges
D. Presence of keratin pearls and moderate intercellular bridges
E. No lymph node metastasis found
F. Presence of keratin pearls and significant cellular atypia
G. Presence of keratin pearls but no intercellular bridges
H. Pathological mitotic figures are rare
I. Presence of keratin pearls and mild cellular atypia
J. Presence of cancer nests
Answer: B
Which of the following statements about the four versions of the Tripitaka is correct?

Options:
A. The Taisho Tripitaka published in Japan in the first half of the 20th century was written in Japanese
B. The Hexi-character Tripitaka, carved by Guan Zhubaj of Songjiang Prefecture in Hangzhou Dawan Temple during the Yuan Dynasty, was written in Uyghur script.
C. The Jin-engraved Zhaocheng Canon discovered in Hongtong County, Shanxi, was written in Jurchen script
D. The Goryeo Tripitaka, carved during the reign of King Goryeo, was written in Hangul
E. The Hexi-character Tripitaka, carved by Guan Zhubaj of Songjiang Prefecture in Hangzhou Dawan Temple during the Yuan Dynasty, was written in Tangut script.
F. The Hexi-character Tripitaka, carved by Guan Zhubaj of Songjiang Prefecture in Hangzhou Dawan Temple during the Yuan Dynasty, was written in Mongolian script.
G. The Hexi-character Tripitaka, carved by Guan Zhubaj of Songjiang Prefecture in Hangzhou Dawan Temple during the Yuan Dynasty, was written in Manchu script.
H. The Hexi-character Tripitaka, carved by Guan Zhubaj of Songjiang Prefecture in Hangzhou Dawan Temple during the Yuan Dynasty, was written in Tibetan script.
I. The Hexi-character Tripitaka, carved by Guan Zhubaj of Songjiang Prefecture in Hangzhou Dawan Temple during the Yuan Dynasty, was written in Khitan script.
J. The Hexi-character Tripitaka, carved by Guan Zhubaj of Songjiang Prefecture in Hangzhou Dawan Temple during the Yuan Dynasty, was written in Chinese script.
Answer: E
A 46-year-old male patient, a taxi driver, has been smoking for over 20 years. In the past 10 days, he has experienced sensory impairment on the anterior and lateral side of his calf and the medial side of his foot, with reduced strength in toe dorsiflexion. The patient is

Options:
A. L2 nerve root involvement
B. L5 nerve root involvement
C. L5 nerve root involvement with partial sensory changes
D. L4 nerve root involvement with sensory changes
E. L5 nerve root involvement with complete sensory changes
F. L3 nerve involvement
G. L5 nerve root involvement with partial motor changes
H. L5 nerve root involvement with motor changes
I. L5 nerve root involvement with sensory changes
J. L4 nerve involvement
Answer: B
Among the basic economic characteristics of monopoly capitalism, the most fundamental feature is?

Options:
A. Monopoly results in reduced competition in the market
B. Monopoly leads to the centralization of production and distribution
C. Monopoly occupies a dominant position in economic life
D. Capital export has significant importance
E. Monopoly leads to the centralization of production and capital
F. Division of world territories, forming a colonial system
G. The formation of state monopoly alliances
H. Monopoly leads to the formation of state-regulated markets
I. Monopoly leads to stable and predictable market conditions
J. Monopoly leads to increased competition in the market
Answer: C
Zhuangzi's disciple asked in the chapter 'Mountain Trees', 'The tree on the mountain lives because it is useless, but the goose dies because it is useless. So, should we be useful or useless?' Which of the following answers best aligns with Zhuangzi's original intention?

Options:
A. Be between useful and useless
B. Do some things and refrain from others
C. Master things while being slightly mastered by them
D. Strive to be useful without being consumed by it
E. Master things while being partially mastered by them
F. Master things while being mastered by them
G. Master things while being consumed by them
H. Strive to be useful in all aspects
I. Master things without being mastered by them
J. Be humble and inactive
Answer: I
$int {{{{x^5} + {x^4} - 8} over {{x^3} - 4x}}} dx = left( {} right)$

Options:
A. ${1 over 3}{x^3} + {1 over 2}{x^2} + 4x + 2ln x - 5ln left| {x - 2} right| - 3ln left| {x + 2} right| + C$
B. ${1 over 3}{x^3} + {1 over 2}{x^2} + 4x + 2ln x + 5ln left| {x - 2} right| - 3ln left| {x + 2} right| + C$
C. ${1 over 3}{x^3} + {1 over 2}{x^2} + 4x + 2ln x + 3ln left| {x + 2} right| - 5ln left| {x - 2} right| + C$
D. ${1 over 3}{x^3} + {1 over 2}{x^2} + 4x + 2ln x + 3ln left| {x - 2} right| - 5ln left| {x + 2} right| + C$
E. ${1 over 3}{x^3} + {1 over 2}{x^2} + 4x + 2ln x - 5ln left| {x - 2} right| + 3ln left| {x + 2} right| + C$
F. ${1 over 3}{x^3} + {1 over 2}{x^2} + 4x + 2ln x + 5ln left| {x + 2} right| - 5ln left| {x - 2} right| + C$
G. ${1 over 3}{x^3} + {1 over 2}{x^2} + 4x + 2ln x + 5ln left| {x - 2} right| - 5ln left| {x + 2} right| + C$
H. ${1 over 3}{x^3} + {1 over 2}{x^2} + 4x + 2ln x + 3ln left| {x + 2} right| - 3ln left| {x - 2} right| + C$
I. ${1 over 3}{x^3} + {1 over 2}{x^2} + 4x + 2ln x + 3ln left| {x - 2} right| - 3ln left| {x + 2} right| + C$
J. ${1 over 3}{x^3} + {1 over 2}{x^2} + 4x + 2ln x + 5ln left| {x + 2} right| - 3ln left| {x - 2} right| + C$
Answer: B
During the Yongzheng period of the Qing Dynasty, the metal composition of the circulating coins was 60% copper and 40% lead. Many merchants, driven by profit, melted the coins to extract copper, causing a severe shortage of coins in the market, and barter trade appeared in many places. However, the taxes collected by the government from the people had to be paid in coins, not in kind or silver. Citizens had to buy coins from officials with silver to pay taxes, and many officials thus made a fortune. This situation had never occurred in any previous dynasty of the Ming and Qing Dynasties. Based on the above statement, which of the following conclusions can be drawn? I. The value of the copper contained in the above coins is higher than the face value of the coins. II. In the transactions of buying coins with silver, many did not follow the official exchange rate set by the court. III. In all previous dynasties of the Ming and Qing Dynasties before Yongzheng, the copper content in the coins was less than 60%.

Options:
A. I and II, but not III
B. I and II
C. I and III
D. II and III
E. I and III only
F. I, II, and III
G. I, II, and III only
H. I, II, and III, but not I
I. I and II only
J. I, II, but not III
Answer: B
Let the function $f(x) = mathop {lim }limits_{n to infty } frac{{{x^{2n + 1}} + 1}}{{{x^{2n + 1}} - {x^{n + 1}} + x}}$, then which of the following statements about its discontinuities is correct?

Options:
A. $x=1$ is a removable discontinuity
B. $x=0$ is a removable discontinuity
C. $x=-1$ is a removable discontinuity
D. $x=1, x=-1$ are both jump discontinuities
E. $x=1$ is a jump discontinuity
F. $x=-1$ is a jump discontinuity
G. $x=0$ is a jump discontinuity
Answer: A
This question tests your understanding of distance vector routing. Assume the link cost between router A and router B is 1, and the link cost between router A and router C is 3. A receives a distance vector from B, listing the costs to A, B, C, D as (1,0,1,5). This indicates, for example, the cost between B and D is 5. A also receives a distance vector from C, which is (3,1,0,1). Which of the following distance vectors is the one A will calculate and send to its neighbors?

Options:
A. (0,1,2,5)
B. (1,1,3,4)
C. (2,1,2,4)
D. (0,1,3,2)
E. (0,1,3,5)
F. (0,1,2,6)
G. (0,1,2,4)
H. (0,1,2,1)
I. (0,1,3,1)
J. (0,1,3,4)
Answer: G
To ensure that cavitation does not occur inside a centrifugal pump, the lowest pressure within the pump must be ___ the saturation vapor pressure of the liquid at the delivery temperature.

Options:
A. slightly below
B. uncertain
C. slightly above
D. lower than
E. at least equal to
F. at least lower than
G. equal to
H. higher than
I. at least higher than
J. exactly above
Answer: H
A certain overconsolidated clay layer is 2 m thick, with a unit weight γ=18.0 kN/m³, and a preconsolidation pressure pc=300 kPa. The overlying soil layer is 5 m thick, with a unit weight γ=19.8 kN/m³. The construction of a building produces an average additional stress σc=400 kPa in the clay layer. Given that the compression index Cc=0.4, the swelling index Cs=0.1, and the initial void ratio e1=0.7, the final settlement of the soil layer is ( ).

Options:
A. 0.165m
B. 0.172m
C. 0.159m
D. 0.175m
E. 0.212m
F. 0.152m
G. 0.242m
H. 0.162m
I. 0.189m
J. 0.169m
Answer: C
The lifetime of a certain electronic component follows a normal distribution N($mu,{sigma^2}$). A sample of 10 components is inspected, yielding a sample mean $overline X$=1200(h) and a sample standard deviation s=14(h). Using $overline X$ as the estimate of $mu$, the probability that the absolute error does not exceed 10(h) is ( )

Options:
A. 0.85
B. 0.93
C. 0.9
D. 0.8
E. 0.95
F. 0.96
G. 0.94
H. 0.92
I. 0.97
J. 0.88
Answer: E
We are search a pattern of size m in a text string of size n using the BM algorithm with BC+GS strategy. What's the time complexity for the best/worst case?

Options:
A. O(n/m), O(n+m)
B. O(n/m), O(n+m+1)
C. O(n/m), O(m+n+1)
D. O(n/m), O(nm)
E. O(n), O(m+n)
F. O(n/m), O(m+n)
G. O(n/m), O(mn)
H. O(m), O(mn)
I. O(n/m), O(m)
J. O(n+m), O(mn)
Answer: F