problem stringlengths 14 4.09k | solution stringlengths 1 802k | task_type stringclasses 3
values | problem_tokens int64 5 895 |
|---|---|---|---|
The following is a multiple choice question (with answers).
===Question
Find the smallest positive integer $n$ such that for every integer $m$ with $0 < m < 1993$, there exists an integer $k$ for which \[ \frac{m}{1993} < \frac{k}{n} < \frac{m+1}{1994}. \]
===Choices
3986
3984
3981
3989
3988
3983
3980
3987
3985
3982 | 3987 | general_qa | 137 |
The following is a multiple choice question (with answers).
===Question
Solution A contains a buffer formed of 2.0 M acetic acid and 0.8 M potassium acetate. Solution B contains a buffer formed of 0.2 M acetic acid and 0.08 M potassium acetate. How do the solutions compare?
===Choices
The pH of solution A is lower tha... | The pH and buffer capacity of both solutions are the same. | general_qa | 307 |
The following is a multiple choice question (with answers).
===Question
Under Chinese law,employee Wei of Company A won a prize in the company's annual meeting lottery. According to the rules of the event, the company will fund the education expenses of the employee's child for the following year. If the employee leave... | Company A and Wei established a conditional gift. | general_qa | 210 |
The following is a multiple choice question (with answers).
===Question
The differential equation representing a certain system is given by: $\mathbf{d} [ \mathbf{y} ( \mathbf{t} ) ] / \mathbf{d} \mathbf{t}+3 \mathbf{y} ( \mathbf{t} )=3 \mathbf{u} ( \mathbf{t} )$ .The known system's total response is
$$
y ( t )=\left( ... | $(3/2)\mathrm{e}^{-3t}\mathrm{u} (t)$ | general_qa | 351 |
The following is a multiple choice question (with answers).
===Question
In which Japanese sci-fi animation did the VF-17 Nightmare first appear?
===Choices
Macross Zero
Macross 7: Galactic Nightmares
Macross 7: The Nightmares of a Singer
Macross 7: Do You Remember Love?
Macross Plus
Macross Delta
Macross 7: The Movie
... | Macross 7 | general_qa | 100 |
The following is a multiple choice question (with answers).
===Question
Two $5$ -digit numbers are called "responsible" if they are:
$$\begin{align*} &\text {i. In form of abcde and fghij such that fghij = 2(abcde)}\\ &\text {ii. all ten digits, a through j are all distinct.}\\ &\text {iii.} a + b + c + d + e + f + g +... | 22 | general_qa | 205 |
The following is a multiple choice question (with answers).
===Question
What are the germination characteristics of rice seeds under conditions of insufficient oxygen supply?
===Choices
The radicle elongates faster, and the epicotyl halts growth.
The epicotyl is long, and the radicle is short.
The epicotyl remains und... | The epicotyl is long, and the radicle is short. | general_qa | 172 |
The following is a multiple choice question (with answers).
===Question
A woman with albinism (whose father is red-green colorblind) marries a man with normal vision (whose father also has albinism). What is the likelihood that their child will have typical characteristics?
===Choices
1/3
3/8
7/16
3/4
1/8
5/8
1/2
1/16... | 3/8 | general_qa | 101 |
The following is a multiple choice question (with answers).
===Question
In the rectifying section of the tray distillation column, it is measured that: the operating vapor-liquid ratio is 1.25, the gas phase composition entering the $i$th theoretical plate is $\mathbf{y}_{i+1}=0.712$, the liquid phase composition leavi... | 0.7221 | general_qa | 205 |
The following is a multiple choice question (with answers).
===Question
In a complete major training cycle, the stage corresponding to changes in training and competition status is ()
===Choices
Gradual Improvement Phase
Recovery Phase
Adaptive Adjustment Phase
Acquisition Phase
Initial Stabilization Phase
Initial Ada... | Relative Stabilization Phase | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
The normalization process is mainly to overcome the insert exception, delete exception and () defect in the database logical structure.
===Choices
the redundancy is large
data inconsistency
data access is complex
low performance
inadequate securit... | data inconsistency | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
A sample of carbon dioxide that initially occupies 15.0 dm$^{3}$ at 250 K and 1.00 atm is compressed isothermally. Into what volume must the gas be compressed to reduce its entropy by 10.0 J K$^{-1}$?
===Choices
$$
{5. 0 0 \, \mathrm{d m}^{3}}
$$
... | $$
{2. 9 1 \, \mathrm{d m}^{3}}
$$ | general_qa | 299 |
The following is a multiple choice question (with answers).
===Question
The normal gravity formula $\gamma_0=\gamma_e\left(1+\beta\sin^2B-\sin^22B\right)$ is used to calculate _____ normal gravity, where the coefficient $\beta$ is called _____. The relationship between normal gravity at a height H meters above the elli... | Ellipsoidal surface, gravitational flattening, $r = r_0 - 0.3086H$ | general_qa | 329 |
The following is a multiple choice question (with answers).
===Question
A certain high-rise residential building has a raft foundation, with a foundation depth of $7 \mathrm{m}$. The natural unit weight of the soil above the foundation is $20 \mathrm{kN/m}^{3}$, and the characteristic value of the natural foundation be... | 558kPa | general_qa | 261 |
The following is a multiple choice question (with answers).
===Question
Which method of treatment is most appropriate for correcting paradoxical respiration in closed multiple multiple rib fractures if the fracture is small?
===Choices
Intravenous fluid administration
Application of cold ice packs
Daily aerobic exerci... | Compression bandage immobilization | general_qa | 102 |
The following is a multiple choice question (with answers).
===Question
The most suitable temperature for assessing the aroma of tea leaves is ().
===Choices
50°C-60°C
40°C-50°C
30°C-40°C
80°C-90°C
10°C-20°C
20°C-30°C
60°C-70°C
90°C-100°C
70°C-80°C
0°C-10°C | 40°C-50°C | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
In an X-ray tube, the voltage applied is 20 kV. The energy required to remove an electron from K shell is 19.9 KeV. In the X-rays by the tube (hc = 12420 evA)
===Choices
Minimum wavelength will be 62.4 nm
$L_{lpha} x$ - ray may be emitted
Minimum... | Minimum wavelength will be 62.1 nm | general_qa | 206 |
The following is a multiple choice question (with answers).
===Question
The magnetic field strength of a certain nuclear magnetic resonance spectrometer is $1.4092T$. Determine the operating frequency for the following nuclei: $^{1}{H}$, $\mathrm{^{13}C}$, $\mathrm{^{19}F}$, $\mathrm{^{31}P}$. (Assume the $g$ factors f... | $$59. 99MHz, 15.08MHz,56.44MHz,24.30MHz$$ | general_qa | 493 |
The following is a multiple choice question (with answers).
===Question
The region between two concentric spheres of radii $'a'$ and $'b'$ , respectively( see figure), has volume charge density $\rho = \dfrac {A}{r}$, where $A$ is a constant and $r$ is the distance from the centre. At the center of the spheres is a poi... | $$\dfrac {Q}{2\pi a^{2}}$$ | general_qa | 278 |
The following is a multiple choice question (with answers).
===Question
The expression efficiency of housekeeping genes is primarily determined by the promoter and ______.
===Choices
protein channels
tRNA molecules
transcription factors
histone modification
mRNA transcript
DNA ligase
amino acid sequence
replication fo... | RNA polymerase | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
What is the total bolometric magnitude of the Galaxy?
===Choices
$$
3. 6 \times1 0^{1 0} \mathrm{~ L_{\odot} ~}
$$
$$
5. 0 \times1 0^{1 0} \mathrm{~ L_{\odot} ~}
$$
$$
3. 6 \times1 0^{9} \mathrm{~ L_{\odot} ~}
$$
$$
4. 1 \times1 0^{1 0} \mathrm{~ ... | $$
3. 6 \times1 0^{1 0} \mathrm{~ L_{\odot} ~}
$$ | general_qa | 325 |
The following is a multiple choice question (with answers).
===Question
What is value of the integral $f_{-1}^{+\infty} ( e^{t}+t ) [ \delta( t-2 )+\delta( t+2 ) ] d t$?
===Choices
$e^{-2}-2$
$e^{2}-2$
$e^{2}-4$
$e^{2}+2$
$2e^{2}+2$
$e^{-2}+2$
$2e^{2}-2$
$e^{2}+4$
$e^{2}$
$e^{-2}+4$ | $e^{2}+2$ | general_qa | 138 |
The following is a multiple choice question (with answers).
===Question
What is the expression for the discounted radius of an imperfect well?
===Choices
$R_{we} = \sqrt{R_{we} \cdot s}$
$R_{we} = \frac{R_{we}}{s}$
$R_{we} = R_we^{-s}$
$R_{we} = R_{we} \cdot s$
$R_{we} = R_{we}^s$
$R_{we} = \log(R_{we} \cdot s)$
$R_{w... | $R_{we} = R_we^{-s}$ | general_qa | 176 |
The following is a multiple choice question (with answers).
===Question
A protein has been isolated as sodium salt with their molecular formula $Na_xP$ (this notation means that $xNa^+$ ions are associated with a negatively charged protein $P^{x-}$). A solution of this salt was prepared by dissolving $0.25\:g$ of this ... | $$x=20,\;45563\:amu$$ | general_qa | 355 |
The following is a multiple choice question (with answers).
===Question
The basic requirements for stowage and stowage are to make full use of the means of transport (); Ensure the means of transport (); Guaranteeing the means of transport (); Maintain a reasonable focus; Ensure the transportation quality of goods.
==... | Loading capacity, strength is not damaged, moderate stability | general_qa | 172 |
The following is a multiple choice question (with answers).
===Question
Among the following indicators that describe unfilled structural surfaces, which ones are all related to the integrity of the rock mass?
===Choices
spacing, connectivity, trace length, number of sets
number of sets, spacing, orientation, aperture
... | spacing, connectivity, trace length, number of sets | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
Which of the following cell types has the weakest regenerative ability?
===Choices
Osteoblasts
Adipocytes
Chondrocytes
Endothelial cells
Epithelial cells
Fibroblasts
Hepatocytes
Cardiomyocytes
Neurons
Smooth muscle cells | Cardiomyocytes | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements about the development of a motif is correct? ( )
① A motif may consist of only one note
② A motif may include specific intervals and rhythms
③ The simplest method of developing a motif is repetition
④ Techniques fo... | ②③ | general_qa | 108 |
The following is a multiple choice question (with answers).
===Question
The defendant was walking down the street when he saw a woman struggling with a man over a briefcase. Unbeknownst to the defendant, the woman had just stolen the briefcase from the man on the street. Believing the woman to be the victim of an attac... | Not knowing the true facts, the defendant was not justified in using force to protect the woman because the man was privileged to recapture his briefcase. | general_qa | 453 |
The following is a multiple choice question (with answers).
===Question
Which of the following contractual clauses belongs to the principle of legal exemption?
===Choices
Cancellation
Limitation of liability
Arbitration
Dispute
Force majeure
Waiver
Claim
Indemnity
Confidentiality
Assignment | Force majeure | general_qa | 65 |
The following is a multiple choice question (with answers).
===Question
Which two instruments was John Cage's experimental piece *Two^5* written for?
===Choices
Piano and harp
Violin and cello
French Horn and bassoon
Oboe and harpsichord
Guitar and violin
Trumpet and oboe
Tenor trombone and piano
Harmonica and flute
S... | Tenor trombone and piano | general_qa | 97 |
The following is a multiple choice question (with answers).
===Question
What is the relationship between employer and employee, the relationship between lawyer and client, etc., any two related social statuses?
===Choices
Legal association
Social relation
Business transaction
Mutual obligation
Cultural connection
Prof... | Social relation | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
What is the "three concavities sign"?
===Choices
The narrowing and obstruction of the larynx, trachea and bronchial tubes caused by wind-cold leads to extreme relaxation of the respiratory muscles, reduction of negative pressure in the chest cavit... | The narrowing and obstruction of the larynx, trachea, and bronchial tubes due to various reasons leads to extreme exertion of the respiratory muscles, increased negative pressure in the chest cavity, and obvious depression of the suprasternal fossa of the sternum, supraclavicular fossa, and the intercostal space during... | general_qa | 871 |
The following is a multiple choice question (with answers).
===Question
Which type of beam bridge is suitable for the incremental launching method?
===Choices
Prestressed concrete continuous beam bridge with variable cross-section
Reinforced concrete slab bridge with uniform depth
Composite beam bridge with variable c... | Prestressed concrete continuous beam bridge with constant cross-section | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
Methods for clearing afforestation land include cutting and clearing, burning and clearing, piling and clearing, and ________.
===Choices
chemical clearing
synthetic clearing
biological clearing
electrical clearing
mechanical clearing
manual clear... | chemical clearing | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
What is the mixture of vesicles containing various substances produced during metabolism called?
===Choices
Vascular fluid
Tissue fluid
Cytoplasmic bubbles
Plasma globules
Cellular fluid
Organelle fluid
Membrane packets
Nucleus content
Cellular mi... | Cellular fluid | general_qa | 77 |
The following is a multiple choice question (with answers).
===Question
Carbon dioxide, although only a minor component of the atmosphere, plays an important role in determining the weather and the composition and temperature of the atmosphere. Calculate the difference between the molar enthalpy and the molar internal ... | $$
2. 4 6 8 k J \ m o l^{-1}
$$ | general_qa | 313 |
The following is a multiple choice question (with answers).
===Question
A certain perfectly conducting electromagnet carrying one ampere exerts an attractive 100-N force f on a piece of iron while it moves away from the magnet at velocity $\mathbf{v}=1 \; [ \mathrm{m ~ s}^{-1} ]$. What voltage $\mathbf{V}$ is induced a... | $\mathbf{V}=\mathbf{f} \mathbf{v} / \mathbf{I}=\mathbf{1} 0 0 \times\mathbf{1} / \mathbf{1}=\mathbf{1} 0 0$ volts$ | general_qa | 789 |
The following is a multiple choice question (with answers).
===Question
For a certain electric heating load, which requires a DC voltage of $60V$ and a current of $30A$, a single-phase half-wave controlled rectifier circuit is used, directly powered by a $220V$ grid. What are the conduction angle of the thyristor and t... | $$
1 0 2^{\circ}
$$;
$$
6 1. 7 A
$$ | general_qa | 328 |
The following is a multiple choice question (with answers).
===Question
What is the maximum width of Gangabal Lake in kilometers?
===Choices
1 km
1.05 km
1.3 km
0.9 km
0.5 km
1.2 km
1.02 km
1.1 km
0.8 km
1.5 km | 1 km | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
Acetyl salicylic acid $(mol.\ wt.\ =180)$ called aspirin is a pain killer with $p{ K }_{ a }=6$. It two tablets each of $0.09\ gm$ mass containing aspirin are dissolved in $100\ mL$ solution. Its pH will be:
===Choices
$$0.5$$
$$2.0$$
$$2.5$$
$$2.... | $$4.0$$ | general_qa | 146 |
The following is a multiple choice question (with answers).
===Question
Compute the integral:
$$
\int \frac{ x^3-2 \cdot x^2+x }{ 3+2 \cdot x-x^2 } \, dx
$$
===Choices
-\frac{1}{2}\cdot x^2-2\cdot\ln\left(\left|x^2-2\cdot x-3\right|\right)-\ln\left(\left|\frac{x+1}{x-3}\right|\right)+C
-\frac{1}{2}\cdot x^2-2\cdot\ln\... | -\frac{1}{2}\cdot x^2-2\cdot\ln\left(\left|x^2-2\cdot x-3\right|\right)-\ln\left(\left|\frac{x-3}{x+1}\right|\right)+C | general_qa | 405 |
The following is a multiple choice question (with answers).
===Question
What structure can be observed under a microscope when cross-section permanent slides are prepared using materials taken from the base of bamboo shoot internodes?
===Choices
Protoderm, ground tissue, procambium
Protoderm, ground meristem, vascular... | Protoderm, ground meristem, procambium | general_qa | 151 |
The following is a multiple choice question (with answers).
===Question
A solid sphere of radius R and mass m is released from point A on a vertical circular surface of radius 5R which has sufficient friction in part AB. Part BCD is smooth.h is the maximum height attained by the centre of the sphere from point C in p... | $$h=\cfrac {4}7 R$$ | general_qa | 235 |
The following is a multiple choice question (with answers).
===Question
What is the earliest known and most typical farming settlement site in China?
===Choices
Banpo Village Site in Xi'an, Shaanxi Province
Hongshan Culture Site in Liaoning Province
Liangzhu Ancient City Ruins in Zhejiang Province
Fengdaicun Site in Q... | Yangshao Culture Ruins in Jiangzhai, Lintong, Shaanxi Province | general_qa | 160 |
The following is a multiple choice question (with answers).
===Question
When using the method of withdrawing the control rod to push the critical position, if the rod group is raised 12 steps causing the source range count to increase from $n_{1}$ to $n_{2}$ and $n_{2}=1.5 n_{1}$, assuming the differential worth of the... | $$24$$ | general_qa | 152 |
The following is a multiple choice question (with answers).
===Question
Orange County is quickly losing its prime agricultural lands to new suburban development. Among the planning tools your Planning Director wishes to utilize to help protect agricultural lands is a TDR program. The potential use of this tool for agri... | I, IV | general_qa | 186 |
The following is a multiple choice question (with answers).
===Question
Which material is commonly used in the fabrication of heart valves?
===Choices
Silicone
Fiberglass
Titanium
Plexiglas
Polyurethane
Ceramics
Graphene
Kevlar
Polyethylene
Mylar | Silicone | general_qa | 65 |
The following is a multiple choice question (with answers).
===Question
Each solution in each iteration of the simplex method is a feasible solution because it follows which rule?
===Choices
enter before exit rule
select the exiting variable based on the minimum ratio rule
select the entering variable based on the lar... | select the entering variable based on the minimum ratio rule | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
Given that the sand-to-stone ratio in the concrete is 0.54, what is the sand rate?
===Choices
1.86
0.60
0.50
0.38
0.30
0.40
0.45
0.25
0.54
0.35 | 0.35 | general_qa | 90 |
The following is a multiple choice question (with answers).
===Question
At $t = 0$, capacitor A has no charge while capacitor B is charged to 3 volts with shown polarity. Find power supplied by battery at $t= 0$
===Choices
$$\dfrac{5}{6}W$$
$$\dfrac{5}{3}W$$
$$\dfrac{5}{12}W$$
$$\dfrac{5}{4}W$$
$$\dfrac{5}{9}W$$
$$\df... | $$\dfrac{5}{4}W$$ | general_qa | 162 |
The following is a multiple choice question (with answers).
===Question
For dry air, the initial pressure is 7.0 MPa and the temperature is 40°C. After passing through the throttle expansion valve, the pressure is 0.1 MPa. Determine the temperature of the air as it leaves the throttling valve.
===Choices
18°C
55°C
-22... | 28°C | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
A particle with mass $m$ falls to the ground without an initial velocity. What is its equation of motion? The air resistance is proportional to the square of the velocity, with a proportionality coefficient equal to $k$.
===Choices
$$
x=\frac{m} {... | $$
x=\frac{m} {k} \operatorname{l n} \operatorname{c o s h} \sqrt{\frac{g k} {m}} t.
$$ | general_qa | 449 |
The following is a multiple choice question (with answers).
===Question
The correct option for punctuating certain parts of the text is
===Choices
憕以公直正之/人用系赖/又道士孙甑生以左道求进/托以修德/往来嵩山求请无度/憕必挫之
憕以公直/正之人用系赖/又道士孙甑生以左道求进/托以修德/往来嵩山/求请无度/憕必挫之
憕以公直正之/人用系赖/又道士孙甑生以左道/求进托以修功德/往来嵩山求请/无度憕必挫之
憕以公直正之/人用系赖/又道士孙甑生以左道求进/托以修德/往来/嵩山求请无度/憕必... | 憕以公直正之/人用系赖/又道士孙甑生以左道求进/托以修德/往来嵩山/求请无度/憕必挫之 | general_qa | 443 |
The following is a multiple choice question (with answers).
===Question
A ball is thrown from the top of a tower with as initial velocity of 10 $ms^{-1}$ at an angle of $30^∘
$ with the horizontal. If it hits the ground at a distance of 17.3 m from the base of the tower, then the height of the tower will be (Given g =... | 10 m | general_qa | 153 |
The following is a multiple choice question (with answers).
===Question
This question refers to the following information.
"Is there no danger to our liberty and independence in a bank that in its nature has so little to bind it to our country? The president of the bank has told us that most of the State banks exist by... | Unregulated currency and federal debts after the War of 1812 | general_qa | 373 |
The following is a multiple choice question (with answers).
===Question
When the ( ) is high, a drainage system can be set up on the foundation surface of the gravity dam, with scheduled pumping to reduce seepage pressure.
===Choices
regional precipitation rate
downstream water level
upstream river flow
nearby vegetat... | downstream water level | general_qa | 99 |
The following is a multiple choice question (with answers).
===Question
What percent of II° burns are considered mild burns in adults?
===Choices
<8%
<10%
<12%
<5%
<30%
<25%
<40%
<20%
<35%
<15% | <10% | general_qa | 68 |
The following is a multiple choice question (with answers).
===Question
An atomic nucleus with a mass of $M_{R}$ undergoes an elastic collision with a dark matter particle of mass $M_{D}$ and incident kinetic energy $E_{D}$. Derive the expression for the recoil kinetic energy $E_{R}$ of the nucleus, expressed in terms ... | $$
\frac{4 M_{\mathrm{D}} M_{\mathrm{R}}} {( M_{\mathrm{D}}+M_{\mathrm{R}} )^{2}} E_{\mathrm{D}} \mathrm{c o s}^{2} \, \theta\,.
$$ | general_qa | 731 |
The following is a multiple choice question (with answers).
===Question
If silver is considered a monovalent metal with a spherical Fermi surface, calculate the Fermi energy and the Fermi temperature as ().
===Choices
$$
6. 8 3 \mathrm{e V}
$$
$$5. 49 \times 10^{4}K$$
$$
3. 7 2 \mathrm{e V}
$$
$$8. 43 \times 10^{4}K$$... | $$
5. 4 6 \mathrm{e V}
$$
$$6. 34 \times 10^{4}K$$ | general_qa | 375 |
The following is a multiple choice question (with answers).
===Question
A natural light beam with an intensity of $\iota_{0}$ passes through three polarizers $P_1$, $P_2$, and $P_3$, resulting in an output light intensity of $I = \frac{I_{0}}{8}$. It is known that the polarization directions of $P_{1}$ and $P_{3}$ are ... | $45^{\circ}$ | general_qa | 220 |
The following is a multiple choice question (with answers).
===Question
The main basis for diagnosing well-differentiated squamous cell carcinoma is
===Choices
Cancer tissue cells show no significant atypia
Presence of keratin pearls and intercellular bridges
Presence of keratin pearls and mild intercellular bridges
P... | Presence of keratin pearls and intercellular bridges | general_qa | 134 |
The following is a multiple choice question (with answers).
===Question
Among the following statements, which are correct:
I. A tree has no cut edge
II. If graph G has a cut edge, then it has no cycle
III. A cut edge cannot be on a cycle
IV. A tree has unique edges
V. A Hamilton graph must contain a cycle
VI. In any gr... | III,V,VI | general_qa | 172 |
The following is a multiple choice question (with answers).
===Question
If the $\mathrm{C-C}$ bond length $l = 1.54 \times 10^{-10}$ m, then the root mean square end-to-end distance of a free jointed chain of polyethylene with a degree of polymerization of $1,000$ is: $\langle r^{2} \rangle^{1 / 2} = ( \qquad )$
===Ch... | $$
\mathrm{ 6. ~ 8 9 \times~ 1 0^{-9} ~ m}
$$ | general_qa | 380 |
The following is a multiple choice question (with answers).
===Question
In the Kunqu opera techniques of "singing, reciting, acting, and fighting," what does "acting" refer to?
===Choices
Monologue
Painting
Navigating scenery
Prop manipulation
Storytelling
Dancing
Acrobatics
Shadow puppetry
Qin Po
Martial arts | Dancing | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
In which month of 1993 was the Jianbing-93 spacecraft launched?
===Choices
September
December
June
October
March
May
January
July
November
February | October | general_qa | 55 |
The following is a multiple choice question (with answers).
===Question
What year did Doris Salcedo get the Rolf Schock Prize in Visual Arts for the first time?
===Choices
2010
2017
2016
2018
2011
2013
2012
2014
2019
2015 | 2017 | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
Wind pathogens often carry cold or heat, reflecting which pathological characteristic of the six excesses?
===Choices
Concurrent occurrence
External invasion
Symptomatic response
Seasonal variation
Influential potency
Pathological impact
Transform... | Concurrent occurrence | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
Find $\left(\left(f(a)\right)^{-1}\right)'$ for the function $f(x) = x + \sqrt{x}$ at $a = 2$.
===Choices
1/4
1/3 + 1/4
1/6
1/3 + 1/6
2/3
1/2
1/3 + 1/5
1/3 + 1/12
1/3
1/5 | 2/3 | general_qa | 115 |
The following is a multiple choice question (with answers).
===Question
Yuán Zhěn, also known by his courtesy name Weizhi and his lineage name Xingjiu, was commonly referred to as Yuán Jiǔ. He was an unswerving lifelong friend of Bái Jùyì. The name of his collected works is?
===Choices
The Unpublished Manuscripts of Y... | The Collected Works of Yuan During the Changqing Reign | general_qa | 171 |
The following is a multiple choice question (with answers).
===Question
What is the primary cause of leaf curling in corn during dry periods due to water deficiency?
===Choices
Mesophyll cells
Blister-like (motile) cells located on the upper epidermis
Parenchyma cells in the mesophyll layer
Sclereid cells in the leaf ... | Blister-like (motile) cells located on the upper epidermis | general_qa | 148 |
The following is a multiple choice question (with answers).
===Question
Cofactors are extremely important for enzyme activity. What is typically used as a cofactor for carboxylase? And what serves as a cofactor for decarboxylase?
===Choices
Biotin; Nicotinamide Adenine Dinucleotide (NAD)
Niacinamide; Tetrahydrofolate
... | Biotin; Cytosine Triphosphate Pyrophosphate Thiamine (CTPP) | general_qa | 207 |
The following is a multiple choice question (with answers).
===Question
Which of the following is true regarding jugular vein examination?
===Choices
When a semi-recumbent position of 50-65 degrees is taken, and the jugular venous pressure exceeds normal levels, it is referred to as jugular venous distension (JVD).
Ju... | In a standing or sitting position, the external jugular vein is usually not visible in a normal person. | general_qa | 160 |
The following is a multiple choice question (with answers).
===Question
If investment is completely unaffected by interest rates in the product market, then ().
===Choices
IS unchanged, within the IS-LM framework
IS Vertical, in the IS-LM model, monetary policy does not affect output
At the level of IS, monetary polic... | IS level, in the IS-LM model, monetary policy does not affect output | general_qa | 183 |
The following is a multiple choice question (with answers).
===Question
In which year was NGC 1223 discovered?
===Choices
1884
1883
1885
1886
1882
1888
1889
1880
1881
1887 | 1886 | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
An important source of Hart's legal theory is ()
===Choices
Realist Jurisprudence
Dworkin's Law as Integrity
Austin's Analytical Jurisprudence
Legal Positivism
Pound's Sociological Jurisprudence
Law and Economics
Natural Law Theory
Historical Juri... | Austin's Analytical Jurisprudence | general_qa | 92 |
The following is a multiple choice question (with answers).
===Question
Which of the following bearing alloys is the ideal structure for bearing alloys with soft particles distributed on a hard substrate?
===Choices
70 high tin aluminum alloy
Aluminum nickel cobalt bearing
Aluminum magnesium copper bearing alloy
Alumi... | Aluminum antimony magnesium bearing alloy | general_qa | 109 |
The following is a multiple choice question (with answers).
===Question
Among the options provided, which one is NOT an instance of hazardous waste? Provide a single response.
===Choices
Contaminated water
Tubing from fluorescent lights
Silty water
Contaminated soil
Contaminated spill kits
Mastics
Contaminated air | Silty water | general_qa | 71 |
The following is a multiple choice question (with answers).
===Question
Cellulose like necrosis of small vessel walls, a common disease?
===Choices
Acute hypertension
Peripheral artery disease
Congestive heart failure
Portal vein thrombosis
Benign hypertension
Obstructive sleep apnea
Renal artery stenosis
Pulmonary ar... | Acute hypertension | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
The so-called kernel trick refers to:
===Choices
using a function defined in a high-dimensional space to replace the vector inner product operation in a different high-dimensional space
using a function defined in the original space to replace the... | using a function defined in the original space to replace the vector inner product operation in a high-dimensional space | general_qa | 236 |
The following is a multiple choice question (with answers).
===Question
Set transform to the element: scale(20) rotate(45deg) translate(20px); What is the meaning of?
===Choices
First, rotate 45 degrees clockwise, then move 20px to the right, and finally enlarge to double the size.
First, rotate 45 degrees countercloc... | First, move 20px to the right, then rotate 45 degrees clockwise, and finally enlarge to twice the size. | general_qa | 347 |
The following is a multiple choice question (with answers).
===Question
Among the following options, which description of the "sports advertising" is accurate?
===Choices
Sports organizations and enterprises communicate bidirectionally with their target markets in various ways to boost the demand for sports products a... | Sports organizations and enterprises communicate bidirectionally with their target markets in various ways to boost the demand for sports products and stimulate the desire to purchase. | general_qa | 259 |
The following is a multiple choice question (with answers).
===Question
The rate of phylogenetic evolution involves variables such as speciation rate, extinction rate, and net species increase rate. Let $t$ represent time, $\mathrm{N_0}$ represent the initial number of species, $N$ represent the number of species after... | S = (lnN - ln$\mathrm{N_0}$)/t + Ne/t | general_qa | 270 |
The following is a multiple choice question (with answers).
===Question
The rate equation for an autocatalytic reaction, $A + R \rightarrow{k} R + R$ is $- r_A = -\dfrac{dC_A}{dt} - k C_A C_R$. The rate of disapperance of reactant $A$ is maximum where:
===Choices
$$C_A = C_R/4$$
$$C_A = 2C_R$$
$$C_A = (CR)^{1/2}$$
\( ... | $$C_A = C_R/2$$ | general_qa | 171 |
The following is a multiple choice question (with answers).
===Question
A real quadratic form $f(X)$ of four variables, after a non-degenerate linear substitution $X=CY$, is transformed into $$y_{1}^{2}-y_{2}^{2}-y_{3}^{2}+y_{4}^{2}.$$ After another non-degenerate linear substitution $X=DZ$, it is transformed into $$z_... | $a<0$; | general_qa | 184 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements about economic history is correct?(Choose the option that includes all the correct statements) I. Menger proposed that due to the existence of economic goods, people will try to make the best use of limited economi... | II, V, VI, VII | general_qa | 416 |
The following is a multiple choice question (with answers).
===Question
In triangle $ABC,$ $BC=9.$ Points $P$ and $Q$ are located on $BC$ such that $BP=PQ=2,$ $QC=5.$ The circumcircle of $APQ$ cuts $AB,AC$ at $D,E$ respectively. If $BD=CE,$ then the ratio $\frac{AB}{AC}$ can be expressed in the form $\frac{m}{n},$ wher... | 43 | general_qa | 137 |
The following is a multiple choice question (with answers).
===Question
What was the name and surname of the judge in the 'Miss World' pageant of 1958, who was a photojournalist and editor?
===Choices
Charles Jacobson
Charles James
Charles Jacob
Charles Jackson
Charles Johnson
Charles Jacoby
Charles Jacobs | Charles Jacobs | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
What is Sagami style?
===Choices
Spatial combination structures of volcanic rocks with universal benefits
Geographic intersection models of tectonic plates with cultural relevance
Geological juxtaposition types of mineral deposits with local impac... | Spatial combination forms of sedimentary facies with universal significance | general_qa | 137 |
The following is a multiple choice question (with answers).
===Question
A triangle has the property that its sides form an arithmetic progression, and that the angle opposite the longest side is three times the angle opposite the shortest side. The ratio of the longest side to the shortest side can be expressed as $\fr... | 50 | general_qa | 131 |
The following is a multiple choice question (with answers).
===Question
Pulsus paradoxus refers to a significant decrease or disappearance of the pulse during inhalation. What is the mechanism behind this phenomenon?
===Choices
Increase in systemic arterial pressure
Increase in left atrial contraction
Decrease in pulm... | Reduction in left ventricular output | general_qa | 114 |
The following is a multiple choice question (with answers).
===Question
The cupule of Fagaceae plants develops from which of the following structures?
===Choices
Modified Bracts
Adapted Stigma
Petals
Involucre
Anther Junction
Floral Calyx
Stem Node Origin
Sepal Elements
The Wall of Zifang
Outer Receptacle | Involucre | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
At the end of the 19th century, Dutch scientist van't Hoff noted, based on numerous experiments, that for every 10 K increase in temperature, the reaction rate increases by a factor of $2-4$. Assuming these experiments were conducted around 27°C, w... | $$
5 3. 6 \sim1 0 7. 2 \mathrm{~ k J \cdot m o l^{-1} ~}
$$ | general_qa | 446 |
The following is a multiple choice question (with answers).
===Question
The temperature in the reservoir of a supersonic wind tunnel is 519°R. In the test section, the flow velocity is 1385 ft/s. Calculate the test-section Mach number. Assume the tunnel flow is adiabatic.
===Choices
$$
1. 6 8
$$
$$
1. 4 0
$$
$$
1. 3 8... | $$
1. 4 9
$$ | general_qa | 179 |
The following is a multiple choice question (with answers).
===Question
The piles used in a certain construction project are cast-in-place piles, with a pile diameter of 0.8m and an embedded depth of $L=28 \mathrm{m}$. The reinforcement of the pile body is $12φ16$, using C30 concrete. The proportional coefficient for t... | 199.4kN | general_qa | 318 |
The following is a multiple choice question (with answers).
===Question
Lamarck systematically proposed the theory of biological evolution before Darwin. Darwin's theory of evolution inherited some of Lamarck's ideas in certain aspects but also differed significantly. Which of the following represents Darwin's viewpoin... | All living organisms originate from a common ancestor. | general_qa | 151 |
The following is a multiple choice question (with answers).
===Question
The Gauss coordinates of point A are $x_A=112240m, y_A=19343800m$. The zone number of the 6° belt where point A is located and the longitude of the central meridian are ( ).
===Choices
17 Bands, 112
19 Bands, 117
19 Bands, 111
20 Bands, 118
19 Ban... | 19 Bands, 111 | general_qa | 161 |
The following is a multiple choice question (with answers).
===Question
Which month and year was William Harrison Standley appointed as the American Ambassador to the USSR?
===Choices
May 1942
November 1941
December 1941
April 1942
June 1942
January 1942
March 1942
July 1942
March 1941
February 1942 | February 1942 | general_qa | 104 |
The following is a multiple choice question (with answers).
===Question
In a middle school with 500 students, where the proportion of students with brown hair is 17.8%, if you construct a confidence interval to estimate this population proportion using a sample size of n=50, which of the following statements is correct... | All incorrect | general_qa | 186 |
The following is a multiple choice question (with answers).
===Question
If you collected 167 snails from a 5-square-meter area, what value do you need to calculate the biomass of these snails? ① Total quantity ② Total weight ③ Total area ④ Total volume
===Choices
③+④
①+②+④
①+④
②+③
①+③+④
②+④
②
①+②
①+③
④ | ②+③ | general_qa | 128 |
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