MikaStars39/nano-eval huggingface dataset:
Two solutions of the same concentration of Zn2+ are titrated with 0.01 mol/L EDTA in an ammonia buffer at pH 10.0. One solution contains 0.2 mol/L free NH3; the other contains 0.5 mol/L free NH3. One portion contains 0.2 mol/L free NH3; the other portion contains 0.5 mol/L free NH3. In both cases, the correct description of pZn is ( ).

Options:
A. pZn is lower after the stoichiometric point
B. pZn is higher in the second sample always
C. pZn is equal before the stoichiometric point
D. pZn is identical between both samples always
Answer: C
Which is the correct statement about the maxillary first premolar?

Options:
A. It is the largest of the incisors, with two cusps on the symphysis, and most of the E-roots are divided into buccal roots at the mid-root or apical 1/4 of the root.
B. It is the smallest of the premolars, with one cusp on the symphysis, and most of the E-roots are fused into mesiodistal roots at the mid-root or cervical 1/3 of the root.
C. It is the largest of the premolars, with one cusp on the symphysis, and most of the E-roots are divided into mesial roots at the mid-root or apical 1/2 of the root.
D. It is the second largest of the premolars, with three cusps on the symphysis, and most of the E-roots are joined into lingual roots at the mid-root or apical 1/2 of the root.
E. It is the largest of the molars, with two cusps on the symphysis, and most of the E-roots are united into buccolingual roots at the mid-root or cervical 1/3 of the root.
F. It is the largest of the premolars, with two cusps on the symphysis, and most of the E-roots are divided into buccolingual roots at the mid-root or apical 1/3 of the root.
G. It is the largest of the premolars, with two cusps on the lingual surface, and most of the E-roots are fused into buccolingual roots at the mid-root or apical 1/3 of the root.
H. It is the largest of the premolars, with three cusps on the symphysis, and most of the E-roots are divided into buccolingual roots at the mid-root or apical 1/2 of the root.
I. It is the largest of the premolars, with two cusps on the symphysis, and most of the E-roots are divided into mesiodistal roots at the mid-root or cervical 1/3 of the root.
J. It is the largest of the premolars, with two cusps on the labial surface, and most of the E-roots are divided into lingual roots at the mid-root or apical 1/3 of the root.
Answer: F
The phenomenon of double-groove homology is a geomorphologic marker used to determine which of the following geologic phenomena is most typical?

Options:
A. seismic events
B. fissure formations
C. volcanic activity
D. rock displacement
E. oceanic erosion
F. glacial movements
G. tectonic shifts
H. mineral deposits
I. sedimentation
J. landslides
Answer: J
In an air medium, the resonance frequency of a Helmholtz resonator with an inlet tube radius of 0.01m, an inlet tube length of 0.1m, a container radius of 0.1m, and a container height of 0.2m is ( ).

Options:
A. 52Hz
B. 55Hz
C. 60Hz
D. 47Hz
E. 40Hz
F. 45Hz
G. 30Hz
H. 50Hz
I. 32Hz
J. 38Hz
Answer: D
Car parameters when unloaded: total weight of the car 2074kg, center of mass height 730mm, distance from center of mass to front axle 1451mm, distance from center of mass to rear axle 1749mm; Vehicle parameters at full load: total weight of the vehicle is 4074kg, center of mass height is 950mm, distance from center of mass to front axle is 1947mm, and distance from center of mass to rear axle is 1253mm. And the synchronous adhesion coefficient at full load is 0.786. What is the synchronous adhesion coefficient when unloaded?

Options:
A. 0.386
B. 0.365
C. 0.258
D. 0.472
E. 0.420
F. 0.298
G. 0.343
H. 0.254
I. 0.339
J. 0.411
Answer: G
If the indoor environment has a uniform pollution source, what is the efficiency of pollutant discharge under piston flow conditions?

Options:
A. 1
B. 0.5
C. 0.25
D. 2.5
E. ∞
F. 0.75
G. 4
H. 1.5
I. 2
J. 3
Answer: I
Female patient, 90 years old, suffering from Alzheimer's disease for more than 10 years with no underlying disease remaining, wheelchair pushed into the ward, nasal diet, slurred speech, open mouth breathing, fall to left pelvic bone fracture while attempting to stand on her own 30 days ago. Consider that the etiology of AD in this patient is most likely to be ____.

Options:
A. dietary deficiency
B. traumatic injury
C. chronic stress
D. normal aging
E. bacterial exposure
F. viral infection
G. autoimmune disorder
H. genetic mutation
I. environmental toxins
J. hormonal imbalance
Answer: D
For patients with chronic diarrhea, spleen deficiency and dampness, rumbling bowels, loose and sticky stools, thick and greasy tongue coating, or diarrhea immediately after eating, the following drugs should be added to the spleen-strengthening and anti-diarrhea drugs ( ).

Options:
A. Blood-cooling and lung-clearing drugs
B. Spleen-drying and dampness-removing drugs
C. Qi-balancing and heat-expelling drugs
D. Fire-calming and cold-reducing drugs
E. Liver-suppressing and spleen-supporting drugs
F. Wind-dispelling and stomach-soothing drugs
G. Qi-invigorating and clearing-raising drugs
H. Phlegm-transforming and heart-tonifying drugs
I. Intestine-astringing and anti-diarrhea drugs
J. Yang-raising and dampness-removing drugs
Answer: J
A common group of herbs used for treating cerebral ischemia among blood-activating and stasis-resolving herbs is ( ).

Options:
A. Danshen, Yanhusuo, Leech
B. Danshen, Jianghuang, Taoren
C. Jianghuang, Chuanxiong, Leech
D. Danshen, Chuanxiong, Honghua
E. Danshen (Salvia miltiorrhiza), Chuanxiong (Ligusticum chuanxiong), Yanhusuo (Corydalis yanhusuo)
F. Danshen, Taoren, Leech
G. Danshen, Chuanxiong, Leech
H. Jianghuang (Curcuma longa), Taoren (Peach kernel), Danggui (Angelica sinensis)
I. Taoren, Chuanxiong, Leech
J. Honghua (Carthamus tinctorius), Hu zhang (Polygonum cuspidatum), Chuanxiong
Answer: G
The traditional Chinese medicine that can increase the levels of central norepinephrine (NA) and dopamine (DA) with long-term administration is ( ).

Options:
A. Rehmannia, Polygonatum
B. Scutellaria, Magnolia
C. Bupleurum, Cinnamon
D. Coptis, Phellodendron
E. Tang-kuei, Danggui
F. None of the above
G. Peony, Licorice
H. Gypsum, Anemarrhena
I. Aconite, Dried Ginger
J. Poria, Atractylodes
Answer: I
The herbal medicine that is considered to have potential nephrotoxicity due to the presence of aristolochic acid and has been restricted in many countries is ( ).

Options:
A. Stephania tetrandra
B. Echinacea
C. Jiaogulan
D. Aconite
E. Asarum
F. Hibiscus
G. Tripterygium
H. Ephedra
I. Ginseng
J. Jujube
Answer: A
The levels of occupancy and ADR (Average Daily Rate) serve as indicators of the effectiveness of the work performed by the General Manager, the Marketing Department, and the Front Office staff. Which of the following questions can be addressed?
① How successful has the Director of Sales been in selling rooms through various sales channels?
② To what extent have the reservation staff matched hotel rooms, amenities, and facilities with guest needs?
③ Are travel agencies making bookings?
④ Has the Director of Sales chosen the right channels to market the hotel rooms?
⑤ Has the Revenue Manager set appropriate room rates at the right times?

Options:
A. ①②
B. ①②③
C. ①④③
D. ①②③④⑤
E. ①②④
F. ①②③⑤
G. ②③④
H. ①③
I. ①②③④
Answer: B
In ancient China, it was called Xingzaisuo,what is the current location called?

Options:
A. Shenzhen
B. Nanjing
C. Guangzhou
D. Suzhou
E. Hangzhou
F. Kunming
G. Zhengzhou
H. Chengdu
I. Xi'an
J. Tianjin
Answer: E
Now consider the same picture from the perspective of a linguistic anthropologist. Given the same choice of topics/questions, what do you think might most interest a linguistic anthropologist?

Options:
A. The sequence of courses served at the meal
B. The seating arrangement around the table
C. The duration of conversations at the meal
D. The ages of individuals enjoying the meal
E. The origin of each item on the menu
F. The type of lighting used during the meal
G. The time the meal is served
H. The relationship of everyone at the meal
I. The style of clothing worn at the meal
J. The number of guests at the meal
Answer: H
What term refers to the largest annual catch that can be continuously taken without threatening the genetic stock?

Options:
A. Maximum Annual Harvest
B. Minimum Allowed Yield
C. Optimal Annual Stock
D. Maximum Harvestable Yield
E. Maximum Sustainable Yield
F. Maximum Continuous Catch
G. Optimal Sustainable Yield
H. Minimum Sustainable Output
I. Maximum Recovery Rate
J. Permanent Sustainable Yield
Answer: E
Which factor most significantly affects the flavor of peppers?

Options:
A. Sunlight exposure
B. Soil temperature
C. Plant age
D. Air circulation
E. Humidity levels
F. Growth rate
Answer: A
When the performance of the processor develops at a high speed, the performance of other components of the computer does not keep up with it, which causes a lot of ability mismatch problems, among which the most important problem is ().

Options:
A. Interface Issues between Processor and Main Memory
B. Latency Issues Between Input/Output Devices and Processors
C. Bandwidth issues between the processor's internal cache and the main memory
D. Interface Issues between Main Memory and External Memory
E. Mismatch between Peripheral Speed and Memory Speed
F. The Speed Issue Between Processor and Cache
G. Bandwidth Issues of the System Bus
H. Speed Issues Between Network Interfaces and Processors
I. Memory Access Time
J. Mismatch issues between processor and peripheral speeds
Answer: A
Which of the following commands reads a file from scratch?

Options:
A. uniq
B. tail
C. wc
D. send
E. head
F. diff
G. grep
H. awk
I. sort
J. cut
Answer: E
The most applicable assessment scale for screening and evaluating debilitating risk in nondisabled older adults is__

Options:
A. Comprehensive Geriatric Assessment Form
B. Basic Old Age Checkup List
C. Clinical Frailty Scale
D. Stability Risk Measure Chart
E. Standard Geriatric Evaluation
F. Decay Index Chart
G. Comprehensive Health Review Chart
H. Weakness Phenotype Table
I. Elderly Function Evaluation
J. Edmund's Frailty Scale
Answer: H
The most common site of occurrence for esophageal cancer is ( ).

Options:
A. esophagogastric junction
B. distal esophageal sphincter
C. middle gastric section
D. cervical esophagus
E. proximal gastric region
F. middle esophagus
G. upper esophagus
H. initial esophageal segment
I. terminal esophageal segment
J. lower esophagus
Answer: F
When primary liver cancer metastasizes within the liver, the most commonly affected site is ( ).

Options:
A. central bile ducts
B. intrahepatic bile ducts
C. hepatic parenchyma
D. left hepatic duct
E. hepatic artery
F. hepatic lobules
G. hepatic vein
H. main liver lobes
I. portal vein
J. peripheral liver tissue
Answer: I
A 22-year-old male was found to have a subcutaneous mass in the right eyebrow arch for 2 months. On examination, he found that the subcutaneous mass was about 7mm in diameter, medium in texture, movable, with no compression pain, and a small black spot was visible on the surface of the skin. Surgical excision revealed that the peritoneum of the subcutaneous mass was intact, and after complete excision of the mass and incision of the peritoneum, a "soya bean dregs-like" content was seen. ____ is the most likely diagnosis.

Options:
A. Sebaceous cyst
B. Basal cell carcinoma
C. Hemangioma
D. Dermoid cyst
E. Pilomatricoma
F. Lipoma
G. Follicular adenoma
H. Squamous cell carcinoma
I. Malignant melanoma
J. Epidermal cyst
Answer: A
The magnitude of the damping torque of the Anxuci Type 4 gyrocompass is directly proportional to _____.

Options:
A. Angular velocity of the disk
B. Gyroscopic precession
C. Surplus liquid angle
D. Bearing friction coefficient
E. Main shaft elevation angle
F. Gyroscope momentum
G. Acceleration of the frame
H. Flywheel rotation speed
I. Latitude
J. Mass of the flywheel
Answer: C
In the design of vertical slopes, the turning point station number should be set at an integer multiple of the station number at ____.

Options:
A. 5.0m
B. 10m
C. 5m
D. 7m
E. 25m
F. 30m
G. 8m
H. 15m
I. 20m
J. 12m
Answer: B
When microorganisms carry out sexual reproduction, including processes such as (), whether there is an exchange of genetic material is the most important criterion for judging sexual reproduction.

Options:
A. Material Coupling and Kernel Matching
B. Substance Merging and Central Matching
C. Content Merging and Central Linking
D. Particle Coupling and Core Matching
E. Content Pairing and Nucleus Aligning
F. Material Binding and Core Pairing
G. Component Aligning and Central Pairing
H. Substance Combining and Kernel Aligning
I. Material Matching and Core Matching
J. Particle Matching and Form Combining
Answer: I
Which of the following structures is not possessed by eukaryotic microorganisms?

Options:
A. Golgi apparatus
B. Cytoskeleton
C. Cell membrane
D. Lysosome
E. Plasmids
F. Ribosome
G. Nucleus
H. Mitochondria
I. Chloroplast
J. Endoplasmic reticulum
Answer: I
The traditional Chinese medicine that requires the pulverization of processed materials in a prescription is ()

Options:
A. Radix Dunbariae
B. Scutellaria baicalensis
C. Lycium barbarum
D. Semen Raphani
E. Ginger
F. Gypsum Fibrosum
G. Lepidium sativum
H. Plantago
I. Angelica dahurica
J. Pueraria root
Answer: D
The preparation of pill blocks is crucial for molding honey pills. A high-quality pill block should be ()

Options:
A. Moderately porous
B. Slightly dry on the surface
C. Very slippery when held
D. Slightly moist overall
E. Completely rigid in texture
F. Highly plastic
G. Extremely tough
H. Somewhat sticky to the hands
Answer: F
Which item had white like reticular texture on the surface?

Options:
A. Bai Shao
B. Lianqiao
C. Dahuang
D. Danshen
E. Dihuang
F. Chuanxiong
G. Huangqi
H. Gancao
I. Fuzi
Answer: C
The main therapeutic effect of Haikun Shenxi Capsules is ( ).

Options:
A. resolve turbidity and detoxify
B. harmonize the stomach and reduce swelling
C. strengthen the spleen and remove dampness
D. tonify the kidneys and strengthen the spleen
E. enhance the lungs and purify
F. tonify the lungs and benefit the kidneys
G. activate blood circulation and remove blood stasis
H. invigorate the spleen and detoxify
I. cleanse the heart and clear dampness
J. strengthen the liver and expel toxins
Answer: A
Which of the following eye diseases can Mingmu Dihuang Pills be used for?

Options:
A. acute lacrimal adenitis
B. cataractous lens deformation
C. spring catarrhal conjunctivitis
D. anterior scleritis
E. posterior vitreous detachment
F. diabetic retinal neuropathy
G. bacterial corneal ulcer
H. peripheral corneal thinning
I. chronic simple glaucoma
J. age-related macular degeneration
Answer: J
Which of the following diseases can be treated with Xiangju Capsules?

Options:
A. seasonal allergic rhinitis
B. acute bronchitis
C. pharyngomycosis
D. recurrent oral ulcers
E. chronic sinusitis
F. acute rhinitis
G. viral conjunctivitis
H. bacterial tonsillitis
Answer: F
The medicinal part of Tian Nan Xing (Arisaema) and Ban Xia (Pinellia) is ()

Options:
A. Bulb
B. Rhizome
C. Fruit
D. Flower
E. Stem
F. Small tuber
G. Corm
H. Leaf
I. Seed
J. Tuber
Answer: G
The proportion of angiosperms among the total medicinal plant resources is ()

Options:
A. 0.68
B. 0.8
C. 0.785
D. 0.55
E. 0.75
F. 0.5
G. 0.7
H. 0.9
I. 0.625
J. 0.95
Answer: C
Which formula has the function of tonifying qi and releasing the exterior?

Options:
A. Chaihu Shugan Decoction
B. Yinqiao Decoction
C. Ganmai Dazao Decoction
D. Baidu Decoction
E. Sangju Decoction
F. Maxing Shigan Decoction
G. Jiuwuwei Qianghuo Decoction'
H. Gui Zhi Tang Decoction
I. Banxia Xiexin Decoction
J. Longdan Xie
Answer: D
What can "Liu Mo Tang" be used for?

Options:
A. Lung obstruction with kidney yin excess
B. Lung obstruction with kidney yang deficiency
C. Lung obstruction with excess heat
D. Lung obstruction with liver qi stagnation
E. Lung obstruction with heart qi imbalance
F. Lung obstruction with stomach cold moisture
G. Lung obstruction with gallbladder fluid retention
H. Lung obstruction with spleen qi deficiency
I. Lung obstruction with bladder damp-heat
J. Lung obstruction with intestine qi overflow
Answer: D
The incorrect view regarding the non-public economy in Chinese current economic system is ( ).

Options:
A. it is an important innovative force in economic activities
B. it can operate entirely without regulation
C. it has stabilized
D. it is an important supplement to the public ownership economy
E. it has already played a dominant role in the macroeconomy
F. it should be guided unwaveringly
Answer: E
Which of the following is not a characteristic of a documentary film?

Options:
A. Artists openly participate in the film.
B. Artists never use real footage in their films.
C. Filmmakers systematically avoid any form of protagonism or involvement.
D. Artists play the role of instigators.
E. Documentary films show only artificial and staged scenarios.
F. Documentary creators never edit or alter the scenes post-recording.
G. Documentary filmmakers hold the camera and are in a tense state, waiting for extraordinary events to happen.
H. Documentary films should not purely document reality but should actively explore the truth, not excluding the use of fictional strategies.
I. The movie is completely unrelated to any real-life events.
J. Real-time events are scripted and rehearsed in advance.
Answer: G
In *Love Letter*, what is most captivating is the scene where the protagonist, Hiroko, appears for over two minutes without speaking a word during the movie's ( ), which is considered a classic moment in film history.

Options:
A. openin
B. early moments
C. initial display
D. ending
E. introductory part
F. final scenes
G. middle sequence
H. mid-section
I. climax
J. last quarter
Answer: A
How many times is the sensitivity of the full-bridge connection method compared to the half-bridge single-arm connection method?

Options:
A. 7
B. 1
C. 2
D. 8
E. 6
F. 9
G. 3
H. 4
I. 10
J. 5
Answer: H
( )controls the excitation of vibrations by the shaker and also manages the multi-channel signal generator and acquisition device for generating and collecting vibration signals.

Options:
A. signal converter
B. frequency modulator
C. motion analyzer
D. test controller
E. shaker
F. power amplifier
G. dynamic simulator
H. vibration sensor
I. accelerometer
J. control software
Answer: D
Which of the following sensor belongs to non-contact measurement?

Options:
A. strain gaug
B. Capacitive proximity sensor
C. Hydraulic pressure transducer
D. piezoelectric accelerometer
E. eddy current sensor
F. moving coil speedometer
G. Optical frequency analyzer
H. Magnetic flux speedometer
I. Piezoelectric displacement meter
J. Thermal conductivity gauge
Answer: E
In which region is it advisable to use high-grade and low viscosity asphalt for the construction of asphalt pavement?

Options:
A. Channelized Traffic Sections
B. Western dry regions
C. Hot climate regions
D. Northern cold regions
E. Eastern rainy regions
F. Low altitude zones
G. Heavy Traffic Section
H. Southern humid regions
I. Coastal flood areas
J. Urban residential areas
Answer: D
What material is commonly used for municipal underground drainage pipes?

Options:
A. Stainless steel line
B. Welded steel pipe
C. PE pipe
D. Cast iron pipe
E. Galvanized steel pipe
F. Ceramic duct channel
G. Copper tubing system
H. Aluminum alloy tube
Answer: D
The regulating capacity of the clear water pond is determined by ( ).

Options:
A. Primary Pumping Station Water Supply Line and User Water Consumption Curve
B. Difference between the water supply from the secondary pump station and the water tower
C. Primary and secondary pump station water supply lines.
D. Secondary pump station and water tower capacity.
E. Sum of upper and main level pump station rates.
F. Secondary and tertiary pump station supply lines.
G. Differential calculations of main and auxiliary pumps.
H. Main and secondary reservoir management levels.
I. Variation between primary pump station and reservoir levels.
Answer: C
What is the flow rate per unit length of the urban water supply pipeline calculated based on the assumption that the water consumption is evenly distributed across all the main pipes?

Options:
A. Diameter to flow rate
B. Volume to flow ratio
C. Average flow rate
D. Velocity to flow ratio
E. Mass to flow ratio
F. Temperature to flow rate
G. Area to Flow Ratio
H. Pressure to flow ratio
I. Length to flow ratio
J. Conversion Flow Rate
Answer: I
A certain building construction project involves excavating soil in a 60m long trench, with a 0.6m width of the trench bottom cushion layer and a 1.4m width from the trench bottom to the designed natural floor. The width of each working face is 0.2m, and the slope coefficient is 1:0.5. According to relevant pricing regulations, what is the excavation volume?

Options:
A. 50.4m³
B. 77.4m3
C. 68.2m3
D. 102.6m³
E. 120.6m3
F. 96.0m3
G. 84m³
H. 142.8m³
I. 112m³
J. 135.2m3
Answer: A
Which of the following expenses are considered as measure costs?

Options:
A. Joint Trial Operation Fee
B. Administrative Support and Processing Fee
C. Secondary Material Handling
D. Equipment Transportation and Miscellaneous Fees
E. Personnel Training Expense on Materials
F. Initial Material Acquisition Cost
G. Equipment Initial Purchase Fee
Answer: C
What is the most important contribution of Sismondi in the history of economic thought?

Options:
A. For the first time, the source of surplus value was resolved
B. The social reproduction issue was analyzed for the first time
C. The initial discovery of the effects of industrial capitalism.
D. The first model of sustainable economic development.
E. The first analysis of economic disparities among differing social classes.
F. The original formulation of the labor theory of value.
G. The first proof of the inevitability of economic crises under the capitalist system.
H. The first time the issue of conflict between the interests of the proletariat and the bourgeoisie was raised.
I. The initial exploration of capital accumulation in industrial societies.
J. The first identification of cyclical fluctuations in market economies.
Answer: G
Which of the following is not a method to prevent the oxidation of morphine injection?

Options:
A. Increase room temperature storage
B. Use nitrogen protection
C. Add antioxidants
D. Avoid contact with metal ions
E. Adjust pH to weakly alkaline
F. Inject morphine without dilution
Answer: E
What reacts with isoxazolidine iron to turn red?

Options:
A. basic steroids
B. phenylpropanoids
C. basic flavonoids
D. alkaloids
E. simple coumarins
F. complex esters
G. terpenes
H. natural glucosides
I. simple ketones
J. aromatic acids
Answer: E
What is the scale of the control detailed planning drawing?

Options:
A. 1:10000~1:5000
B. 1:3000~1:2000
C. 1: 10000~1:2000
D. 1: 1000~1: 500
E. 1:4000~1:2500
F. 1:6000~1:3000
G. 1:50000~1:10000
H. 1:2000~1:1000
I. 1:15000~1:5000
J. 1:12000~1:10000
Answer: H
The location of railway passenger stations in big cities must be deep into the city and should be arranged in ()

Options:
A. In the city's administrative center
B. 2-3 kilometers away from the edge of the city
C. Near city outskirts
D. Within the city center
E. In the city's industrial zone
F. Within suburban areas
G. City center edge
H. City edge
I. Close to major shopping districts
J. Adjacent to business hubs
Answer: G
Which of the following statements about the calculation of land use for roads and squares is correct?

Options:
A. The surrounding area of the land is urban branch roads or residential (small) district level roads, and the road area is calculated based on half the width of the red line
B. Return and parking lots should not be included in the land use for roads
C. The residential (small) area roads within the planned land are calculated at half the width of the red line
D. Group level (and community level without sidewalks) roads are calculated at two-thirds of their actual width
Answer: A
In which year did Wu Wenzhong and Xiao Zhongguo from the Chinese Academy of Martial Arts and Sports compile and publish China's first book, "Sports Psychology"?

Options:
A. 1947
B. 1946
C. 1945
D. 1939
E. 1952
F. 1938
G. 1949
H. 1951
I. 1942
J. 1950
Answer: I
The most important task of athlete training during the competitive maintenance phase is to ensure that the athlete ( ).

Options:
A. Learning and Training Theory
B. Maintain Psychological Stability
C. Increase general physical agility
D. Improve overall endurance capacity
E. Enhance general fitness levels
F. Participate in numerous competitions
Answer: B
The use of Stir Bar Sorptive Extraction (SBSE) has ___.

Options:
A. Headspace Combined with Mixing Method
B. Supercritical Fluid Chromatography
C. Headspace Combined with Heating Method
D. Headspace Combined with Filtering Method
E. Headspace Combined with Cooling Method
F. Liquid-Liquid Extraction Technique
G. Liquid-Liquid Extraction Process
H. Solid Phase Microextraction Method
I. Headspace Combined with Soaking Method
Answer: I
During the titration operation, what's the correct order of operations? ① Rinse the burette with standard solution; ② Add standard solution to the burette; ③ Detect leakage; ④ Titrate; ⑤ Add indicator to the solution to be titrated; ⑥ Wash the conical flask and burette.

Options:
A. ③①⑥⑤④
B. ③②⑥①⑤
C. ②③⑥①④⑤⑥
D. ③⑥①④②⑤⑥
E. ①⑥③⑤②
F. ③①⑤⑥②④⑥
G. ⑥③②①④⑤⑥
H. ⑥③①②⑤④⑥
I. ③⑥①②⑤④⑥
J. ⑥①③②④⑤⑥
Answer: H
Using the Thiele tube method to measure the melting point, among the following situations, the one that causes the measurement result to be obviously too high is__

Options:
A. The sample is highly pure and uncontaminated.
B. The air pressure in the room is unusually high.
C. The sample inside the capillary is overdried.
D. The room temperature is abnormally low and cold.
E. The sample is too characteristic and diverse.
F. The capillary wall is too thick and heats up too quickly.
G. The heat source is not stable or consistent.
H. There's rapid air movement around the experiment.
Answer: F
Using the same pipette, separately take $1 cm^3$ of pure water and dilute solutions of the following types of water. Which type of liquid requires the fewest number of drops?

Options:
A. Na2SO4 aqueous solution
B. sodium benzenesulfonate aqueous solution
C. NaOH aqueous solution
D. n-butanol aqueous solution
E. Pure water
Answer: C
When the chromium content in the water sample exceeds 1mg/L (high concentration), it is best to use the () method to determine its content.

Options:
A. Aluminum Chloride Complexation Process
B. Sodium Carbonate Titration Technique
C. Zinc Chloride Precipitation Method
D. Sodium Hydroxide Neutralization Technique
E. Copper Sulfate Reduction Approach
F. Magnesium Sulfate Flocculation Procedure
G. Calcium Carbonate Precipitation Strategy
H. Potassium Dichromate Reduction Method
I. Ammonium Iron(II) Sulfate Titration Method
J. Barium Nitrate Complexation Procedure
Answer: I
There are many factors that affect the solid phase extraction rate, the most critical of which is__

Options:
A. Adsorbent, eluent
B. Adsorbate, heat
C. Time, concentration
D. Temperature, pressure
E. Stirring speed, material
F. Solvent type, purity
G. Stirring rate, volume
H. Particle size, density
I. Catalyst, inhibitor
J. Temperature, concentration
Answer: A
There are two different colored solutions that both comply with Lambert-Beer's Law. Assuming the thickness of the colorimetric cell, the intensity of the incident light, and the concentration of the solutions are all equal, which of the following statements is correct?

Options:
A. The absorption coefficients are equal.
B. The absorption rates are equal.
C. Absorbed light percentages are equal.
D. All the statements are incorrect.
E. Transmitted intensities are balanced.
Answer: D
In gas chromatography, ( ) is commonly used as an auxiliary gas.

Options:
A. Air
B. Carbon Monoxide
C. Argon
D. Water Vapor
E. Neon
F. Hydrogen
G. Helium
H. Nitrogen
I. Oxygen
J. Methane
Answer: A
In redox titration, if the number of electron transfers in the two half-reactions is equal, the potential of system at the stoichiometric point is ( ).

Options:
A. in alignment with the midpoint potential
B. twice the potential of reducing agent pair
C. unrelated to the electron transfers count
D. matching the doubling of the electron count
E. offset from the initial solution potential
F. equal to the potential of oxidizing agent
G. equivalent to the aggregate electron potential
H. independent of the titration method used
I. the same as the equivalence point potential
J. at the center of the titration jump
Answer: J
In gas-liquid chromatography, which component is the first one to flow out of the column?

Options:
A. Maximum solubility
B. Low solubility
C. High volatility
D. Moderate solubility
E. High solubility
F. Moderate volatility
G. Low absorption
H. Low volatility
I. Low adsorption capacity
Answer: B
The standard substances commonly used for calibrating HCl solutions include ().

Options:
A. Potassium Nitrate (KNO3), Copper Sulfate (CuSO4·5H2O)
B. Barium Chloride (BaCl2), Zinc Carbonate (ZnCO3)
C. Sodium Chloride (NaCl), Calcium Carbonate (CaCO3)
D. Sodium Bicarbonate (NaHCO3), Magnesium Sulfate (MgSO4)
E. Sodium Carbonate (Na2CO3), Benzoic Acid (C7H6O2)
F. Oxalic Acid (H2C2O4·2H2O), Potassium Hydrogen Phthalate
G. Sodium Acetate (NaC2H3O2), Lithium Chloride (LiCl)
H. Sodium Hydroxide (NaOH), Citric Acid (C6H8O7)
I. Potassium Permanganate (KMnO4), Lactic Acid (C3H6O3)
J. Anhydrous Sodium Carbonate (Na2CO3), Borax (Na2B4O7·10H2O)
Answer: J
Which type of aeration tank is only suitable for circumstances where the quality and quantity of inflowing water are relatively stable?

Options:
A. Closed-loop circulation style
B. Fixed Volume Circulation
C. Cyclical Batch Mode
D. Complete Hybrid Model
E. Single-pass Reactor Flow
F. Circular Flow Design
G. Flow Pushed Type
H. Hybrid Continuous Stream
I. Batch Processing
J. Intermittent Mixing Unit
Answer: G
According to the usage of incinerators in various countries around the world, which type of incinerator is the most widely used and has relatively mature technology?

Options:
A. Mechanical Stoker Furnace
B. Heat Recovery Incinerator
C. Hybrid Combustion Setup
D. Jet Bubbling Reactor
E. Rotary kiln
F. Grate Moving Incinerator
G. Enclosed Drum System
H. Melting-Gasification Furnace
I. External Heated Furnace
J. Fluidized Bed Furnace
Answer: A
Where is the main area for removing dust particles in a cyclone dust collector?

Options:
A. Upper spiral flow
B. External vortex
C. Upper vortex
D. Inner spiral flow
E. Reverse spiral flow
F. Inner Vortex
G. Inter spiral flow
H. Downward vortex
I. Downward spiral flow
Answer: B
Which of the following sensors belongs to optical scanners?

Options:
A. IMU
B. MSS
C. LIDAR
D. CCD
E. HRV
F. INS
G. RADAR
H. SAR
I. GPS
J. SONAR
Answer: B
Bitter-tasting medicine can treat _____.

Options:
A. Joint pain syndrome
B. Muscle weakness syndrome
C. Memory loss syndrome
D. Chronic fatigue syndrome
E. Blood clotting syndrome
F. Constipation syndrome
G. Night sweating syndrome
H. Recurrent fever syndrome
I. Insomnia syndrome
J. Anxiety disorder syndrome
Answer: F
The entire ventilation system design uses conical ducts for uniform air distribution. What is the calculation based on circular ducts?

Options:
A. minimal diameter
B. standard diameter
C. fixed diameter
D. larger diameter
E. constant diameter
F. average diameter
G. smaller diameter
H. equal diameter
I. uniform diameter
Answer: F
Pipeline insulation should be considered after on-site installation. If insulation is carried out before installation, what is the artificial factor multiplied by?

Options:
A. 0.3
B. 1.1
C. 0.6
D. 0.5
E. 1.3
F. 1.2
G. 0.8
H. 0.9
I. 0.7
J. 0.4
Answer: B
When the load resistance (RL) is 10Ω, the power consumption is 22.5W, and when the load resistance (RL) is 20Ω, the power consumption is 20W. Therefore, when RL is ( )Ω, the power consumption is the largest.

Options:
A. 50
B. 45
C. 30
D. 25
E. 12
F. 40
G. 60
H. 15
I. 70
J. 10
Answer: J
The small solid angle method is one of the means to measure the activity of alpha sources. The description of this method that is correct is ( ).

Options:
A. Simple mechanical shielding is sufficient for measurement.
B. Only a certain type of alpha particles is detectable.
C. α particles exhibit negligible mass loss during emission.
D. To improve detection efficiency, the α source should be as close to the detector as possible.
E. The source must be positioned several meters
F. Most α particles penetrate physical barriers easily.
G. The detection chamber usually needs to be vacuumed.
H. The detector's accuracy improves with increased distance.
Answer: G
The basis for radiographic self-developing detection of rays is ( ).

Options:
A. Chemical Reaction
B. Compton scattering
C. Photosensitive Effect
D. Magnetic Induction
E. Ionization
F. Quantum Leap
G. Electron Displacement
H. Kinetic Interaction
I. Photoelectric Effect
J. Fluorescence Phenomenon
Answer: C
In load calculations, single-phase loads should be evenly distributed across the three phases. When the total capacity of single-phase loads is less than the total capacity of symmetric three-phase loads within the calculation range, calculate them all as symmetric three-phase loads( ).

Options:
A. 10%
B. 7%
C. 23%
D. 34%
E. 12%
F. 30%
G. 20%
H. 25%
I. 15%
J. 18%
Answer: I
In the equivalent circuit of a transformer, if both GT and BT are greater than 0, what is their admittance?

Options:
A. GT+jBT
B. jGT+BT
C. -GT+jBT
D. -jGT-BT
E. BT-jGT
F. GT-jBT
G. jGT-BT
H. -jGT+BT
I. BT+jGT
J. -GT-jBT
Answer: F
For voltage central points that adopt the reverse pressure adjustment method, their voltage is adjustable within a certain range( ).

Options:
A. [ 1.0UN, 1.05UN ]
B. [ 0.95UN, 1.05UN ]
C. [ 1.0UN, 1.1UN ]
D. [ 1.025UN, 1.1UN ]
E. [ 1.0UN, 1.075UN ]
F. [ 0.95UN, 1.1UN ]
G. [ 1.025UN, 1.075UN ]
H. [ 1.025UN, 1.05UN ]
Answer: A
What principle does the Ward equivalent method use to perform network equivalency?

Options:
A. Thevenin's equivalent
B. Monte Carlo Simulation for Node Reduction
C. Laplace Transformation for Network Solution
D. Norton equivalent
E. Kirchhoff's Current Law for Node Analysis
F. Minimum Spanning Tree to Simplify Connections
G. Fast Fourier Transform to Reduce Network Complexity
H. Gauss Elimination Method to Eliminate External Nodes
I. Linear Regression to Filter Out Irrelevant Nodes
Answer: H
In the direct power supply method used in high-pressure deep load centers, the incoming voltage of the power supply is usually how much?

Options:
A. 6kV
B. 30kV
C. 35kV
D. 1kV
E. 20kV
F. 12kV
G. 15kV
H. 3kV
I. 10kV
J. 5kV
Answer: H
If we apply the algorithm metioned to four intervals like (1,3),(4,10),(5,6),(0,2), which of the following is the correct pattern sequence?

Options:
A. LLLRRRRL
B. RRLLRRLL
C. RRLLLRRL
D. RRRLL
E. RLLRLRRL
F. LRRLLLRR
G. LRRLRRLL
H. LLLRRLRR
I. RRLRLLRR
J. LLRRLLRR
Answer: J
Which type of microorganism is the most heat-resistant among the following?

Options:
A. Salmonella bacteria
B. Mold
C. Staphylococcus aureus
D. Clostridium botulinum
E. Lactobacillus species
F. Listeria monocytogenes
G. Bacillus genus
H. Pseudomonas aeruginosa
I. Escherichia coli
J. Streptococcus thermophilus
Answer: G
The polymer dissolution process must undergo two stages: swelling and complete dissolution. The solubility is related to the molecular size of the polymer and the _______.

Options:
A. pressure of environment
B. phase of the moon
C. rate of cooling
D. duration of exposure
E. speed of agitation
F. concentration of solvent
G. elasticity of molecules
H. degree of cross-linking
I. polarity of solvent
J. amount of heat applied
Answer: H
Which following heating furnaces have a movable hearth structure?

Options:
A. Rotary heating furnace, cupola furnace, fluidized bed furnace
B. Bell furnace, box furnace, roller hearth furnace
C. Rotary heating furnace, cupola furnace, conveyor furnace
D. Electric arc furnace, blast furnace, induction furnace
E. Step heating furnace, ring heating furnace, car-type heating furnace
F. Open hearth furnace, walking beam furnace
G. Batch heating furnace, conveyor heating furnace, crucible furnace
H. Brick heating furnace, spindle heating furnace, trailer-type heating furnace
I. Continuous heating furnace, solar heating furnace, pit furnace
J. Reverbatory furnace, crucible furnace, muffle furnace
Answer: E
Which of the following situations is likely to increase national income the most?

Options:
A. Companies increase marketing expenses by 25 billion yuan
B. Personal spending reduced by 25 billion yuan
C. Personal income tax reduced by 25 billion yuan
D. The government raises export tariffs by 25 billion yuan
E. Government transfer payments increase by 25 billion yuan
F. Companies decrease research investments by 25 billion yuan
G. The government will increase maintenance spending on highways by 25 billion yuan
H. Interest rates on loans increased by 25 basis points
Answer: G
The sides of a rectangular pit are measured separately using a steel ruler, and the measurement error of each side is ±2 mm, then the perimeter error is ( ) mm.

Options:
A. ±8
B. ±20
C. ±10
D. ±6
E. ±4
F. ±1
G. ±16
H. ±12
I. ±18
J. ±14
Answer: E
It is known that $(30D/24F)$ yarn is spun by a cotton filament and a polyester filament on a ring spinning frame, and the fineness of the cotton filament when it comes out of the front roller mouth is 100 male. If the twist of the polyester filament is known to be $\mu_{1}=1 \, 5 \%$ and the twist of the cotton filament is known to be $\mu_{2}=5 \%$, what is the tex of the yarn and the dtex of a single filament?

Options:
A. $$
1 4. 3 9 t e x,\ 1.39dtex
$$
B. $$
1 5. 2 2 t e x,\ 1.47dtex
$$
C. $$
1 3. 3 8 t e x,\ 1.80dtex
$$
D. $$
1 4. 4 5 t e x,\ 1.42dtex
$$
E. $$
1 4. 4 5 t e x,\ 1.39dtex
$$
F. $$
1 2. 5 7 t e x,\ 1.21dtex
$$
G. $$
1 3. 9 5 t e x,\ 1.65dtex
$$
H. $$
1 4. 6 0 t e x,\ 1.34dtex
$$
I. $$
1 4. 7 8 t e x,\ 1.36dtex
$$
J. $$
1 4. 8 9 t e x,\ 1.42dtex
$$
Answer: E
When the standard system is used, only two reference values of electrical volume need to be selected, and other reference values of electrical volume can be derived according to the relationship between them. What is the usual selection method?

Options:
A. Select Power and Capacitance Reference Values
B. Choice of Current and Impedance Reference Values
C. Choice of Voltage and Resistance Reference Values
D. Select Power and Impedance Reference Values
E. Selection of power and current reference values
F. Selection of Voltage and Impedance Reference Values
G. Selection of Power and Voltage Reference Values
H. Set Power and Resistance Reference Values
I. Selection of Power and Resistance Reference Values
J. Selection of Current and Voltage Reference Values
Answer: G
Of the reactive power supply groups listed below, which one has a completely positive voltage regulation effect?

Options:
A. Phase-shifting Transformer, SR type Static Reactive Power Compensator, TSC type Static Reactive Power Compensator
B. Phase-shifting Device, SR type Static Var Compensator, TCR type Static Var Compensator
C. Phase-shifting Device, TCR type Static Var Compensator, Shunt Inductor
D. Phase-shifting Transformer, SR type Static Var Compensator, Shunt Inductor
E. TCR-type Static Var Compensator, SR-type Static Var Compensator, Shunt Capacitor
F. Phase-shifting Transformer, TCR type Static Reactive Power Compensator, Shunt Capacitor
G. Phase-shifting device, TCR-type Static Reactive Power Compensator, Shunt Capacitor
H. Phase shifter, SR type static reactive power compensator, TCR type static reactive power compensator
I. Phase-shifting Transformer, TCR type Static Var Compensator, TSC type Static Var Compensator
Answer: A
When the short-circuit current calculation curve is prepared, the calculated reactance is only prepared to 3.5, what is the reason?

Options:
A. In practical engineering, there is no situation where the calculated reactance exceeds 3.5.
B. Should the reactance surpass 3.5, we may categorize these power sources as unlimited, whereby any moment's effective periodic component yields the initial value of the same.
C. At a reactance value greater than 3.5, power sources are often viewed as unlimited, thus all instances of the short-circuit current remain at their original magnitude in effect.
D. If the reactance measurement exceeds 3.5, it is assumed as an infinite power source, hence simplifying the periodic short-circuit current calculations.
E. Calculating reactances above 3.5 yields consistently negligible current contributions, reducing the necessity for further analytical procedures.
F. While the reactance value is above 3.5, all power sources are deemed infinite, resulting in a consistent base effective value for the periodic component of the short-circuit current throughout.
G. For power sources with a reactance greater than 3.5, they can be considered as infinite power sources. The effective value of the periodic component of the short-circuit current at any moment is the initial effective value of the periodic component of the
H. All power sources with a reactance above 3.5 produce negligible short-circuit currents, making additional calculations unnecessary.
I. Higher reactances lead to power sources being classified as infinite power sources, simplifying short-circuit current calculations at any point during the period.
Answer: G
When different types of short-circuit faults occur at the same point of the power system, what is the short-circuit type arrangement order from high to low according to the positive sequence voltage at the fault?

Options:
A. Single-phase grounding fault, three-phase short circuit, two-phase short circuit, two-phase short circuit with ground
B. Two-phase short circuit, two-phase short circuit to ground, single-phase to ground short circuit, three-phase short circuit
C. Single-phase ground fault, three-phase short circuit, two-phase short circuit with ground, two-phase short circuit
D. Single-phase ground fault, two-phase short circuit, two-phase short circuit with ground, three-phase short circuit.
E. Three-phase short circuit, two-phase short circuit, two-phase short circuit with grounding, single-phase grounding short circuit
F. Single-phase grounding fault, three-phase short circuit, two-phase short circuit with ground, two-phase short circuit
G. Three-phase short circuit, two-phase short circuit with ground, single-phase ground fault, two-phase short circuit
H. Two-phase short circuit, single-phase ground fault, three-phase short circuit, two-phase short circuit with ground
I. Single-phase grounding fault, two-phase short circuit to ground, two-phase short circuit, three-phase short circuit
J. Two-phase short-circuit to ground, two-phase short-circuit, single-phase ground fault, three-phase short-circuit
Answer: D
When analyzing the transient stability of power system operation, what are the principles of dealing with aperiodic and negative sequence currents?

Options:
A. Consider the impacts of non-periodic and negative order components.
B. Dismiss the effects of non-cyclic components and negative order elements.
C. Ignoring the impact of negative sequence components, but considering the influence of non-periodic components.
D. Ignoring the impact of non-cyclic components and negative sequence components
E. Ignore the presence of non-periodic factors and negative sequence components.
F. Disregard the influence of non-periodic components, yet consider negative sequence impacts.
G. Consider the influences of non-cyclic disturbances and positive sequence elements.
H. It is necessary to consider the effects of non-cyclical components and negative sequence components.
I. Disregard the influence of non-cyclic components and negative sequence components.
J. Disregard the impact of non-periodic components, but consider the effects of negative sequence components.
Answer: D
Observing the tissue structure of Scutellaria baicalensis, in addition to the presence of stone cells in the cork layer, scattered stone cells in the cortex, and the formation of a ring by the cambium, what else can be observed?

Options:
A. A ring of lignified cells is present at the center of the old root.
B. Phloem contains crystal fibers
C. Stone cells form clusters in cortex.
D. Cortical cells are heavily suberized.
E. Old root shows abundant parenchyma.
F. Cork cells contain large oil globules.
G. Phloem has extensive sieve tubes.
H. Cambium forms multiseriate rays.
I. Cortex shows numerous resin ducts.
J. Old root lacks a secondary xylem.
Answer: A
What methods are commonly used to process Shangxueyao (Upper Blood Medicine)?

Options:
A. Sun Drying Preparation Technique
B. Methods of Stir-Frying
C. Carbonation Method of Processing
D. Cooking and Preparation Methods
E. Cold Pressing Processing Method
F. Dry Roasting Preparation Method
G. Freezing and Storage Method
H. Steamed Preparation Method
I. Sautéing Procedure Method
J. Low-Heat Boiling Method
Answer: C
What are the main characteristics of seed powder crude drugs?

Options:
A. Resin ducts
B. Vascular bundles
C. Husk fragments
D. Starch granule
Answer: D
The medicinal herb in question splits from the top or divides into two halves, with a yellow-brown or red-brown outer surface and a mostly light yellow-brown, smooth inner surface featuring a longitudinal ridge. It is brittle in texture. The seeds are brown and mostly have fallen off. The aroma is faintly fragrant, and the taste is bitter. What is this medicinal herb?

Options:
A. Old Kite
B. Wild Ginger
C. Sweet Clover
D. Fennel
E. Privet Fruit
F. Forsythia
G. Bitter almond
H. Narrowleaf Kalopanax
I. Blue Fumitory
J. Tansy Leaf
Answer: A
In preschool education institutions, the education of children with language disorders should not be ().

Options:
A. language enhancement should be pervasive in many teaching areas
B. mixed with regular preschool educational activities
C. separated from ordinary preschool education activities
D. assigned solely to specialized language therapists
E. intertwined with normal preschool educational activities
F. it become the responsibility of all preschool teachers
G. integrated with ordinary preschool education activities
H. language correction should be infiltrated into all areas of teaching content
I. become the obligation of every preschool educator
J. combined with normal preschool educational actions
Answer: C
In a vacuum, there are two infinitely large parallel plates with uniform charge densities. One plate has a charge density of $\sigma$, and the other has a charge density of $2\sigma$. What is the magnitude of the electric field strength between the two plates?

Options:
A. $\frac{\sigma}{3\varepsilon_0}$
B. $\frac{\sigma}{\varepsilon}$
C. $\frac{2\sigma}{\varepsilon_0}$
D. $0$
E. $\frac{5\sigma}{2\varepsilon_0}$
F. $\frac{3\sigma}{2\varepsilon_0}$
G. $\frac{\sigma}{4\varepsilon_0}$
H. $\frac{3\sigma}{\varepsilon_0}$
I. $\frac{\sigma}{\varepsilon_0}$
J. $\frac{\sigma}{2\varepsilon_0}$
Answer: J
What is the most abundant element in seawater?

Options:
A. Sulfur
B. Chlorine
C. Hydrogen
D. Phosphorus
E. Carbon
F. Nitrogen
G. Oxygen
H. Magnesium
I. Sodium
J. Calcium
Answer: C
What is the Rate-Determining Step Method?

Options:
A. Evaluate the diffusion speed of the gas (ds/dt) amid various atmospheric pressure levels or humidity conditions.
B. Determine the combustion rate of the gas (dc/dt) through different oxygen concentrations or heat settings.
C. Evaluate the flow velocity of the liquid (dv/dt) over diverse nozzle sizes or flow path obstructions.
D. Quantify the evaporation rate of the liquid (de/dt) throughout changing heat sources or ambient temperatures.
E. Analyze the expansion speed of the fluid (dx/dt) across varying pressure states or temperature scenarios.
F. Measure the permeation rate of the solution (dh/dt) under different liquid level height differences or external applied pressures.
G. Assess the permeation rate of the solution (dh/dt) across diverse liquid densities or chemical properties.
H. Monitor the filtration efficiency of the solution (dm/dt) throughout varying filter sizes or clogging levels.
I. Analyze the pressure dynamics of the solution (dp/dt) across varied temperature gradients or fluid resistances.
Answer: F
The index for judging the softness and hardness of clay is ( ).

Options:
A. Plasticity index
B. Slake durability
C. Compression coefficient
D. Bearing capacity
E. Liquidity index
F. Compression index
G. Swelling pressure
H. Shrinkage limit
I. Void ratio index
J. Permeability rate
Answer: E