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
If potential at the surface of earth is assigned zero value, then potential at centre of earth will be (Mass = M, Radius = R)
===Choices
-\dfrac{ GM }{ 3R }
-\dfrac{ GM }{ 6R }
$$0$$
-\dfrac{ 3GM }{ 4R }
-\dfrac{ GM }{ 4R }
-\dfrac{ GM }{ 5R }
$$-... | $$-\dfrac { GM }{ 2R } $$ | general_qa | 163 |
The following is a multiple choice question (with answers).
===Question
Which of the following descriptions about the chemiosmotic theory is correct?
===Choices
$\mathrm{H^+}$ is primarily present in the space outside the mitochondria, while $\mathrm{OH^-}$ is absent near the membrane.
$\mathrm{OH^-}$ is actively tran... | $\mathrm{H^+}$ accumulates outside the inner membrane of the mitochondria, while $\mathrm{OH^-}$ accumulates inside the membrane. | general_qa | 331 |
The following is a multiple choice question (with answers).
===Question
If the total charge stored in the $LC$ circuit is $Q_{0},$ then for $t \ge 0$
===Choices
the charge on the capacitor is $Q=-\dfrac{1}{LC}\dfrac{d^2Q}{dt^2}$
the charge on the capacitor is \( Q=-\dfrac{1}{\sqrt{LC}}\dfrac{dQ}{dt} \)
the charge on t... | the charge on the capacitor is $Q=-LC\dfrac { { d }^{ 2 }Q }{ d{ t }^{ 2 } } $ | general_qa | 428 |
The following is a multiple choice question (with answers).
===Question
A buffer solution of $pH=9.00$ is made by dissolving ammonium chloride and ammonia in water. How many moles of ammonia chloride must be added to $1.0L$ of $0.25 M$ ammonia to prepare this buffer ?
$N{H_3}(aq) + {H_2}O\leftrightharpoons N{H^ - }_4(... | $0.25$ mol | general_qa | 205 |
The following is a multiple choice question (with answers).
===Question
Under normal circumstances, the entire set of teeth in a dog is replaced with permanent teeth within how long after birth?
===Choices
15 months
8 months
4 months
10 months
14 months
5-6 months
20 months
12 months
18 months
2 years | 8 months | general_qa | 77 |
The following is a multiple choice question (with answers).
===Question
An object of mass m is attached to a spring.The restoring force of the spring is F=$ - \lambda {x^3},$ where x is the displacement. the oscillation period depends on the mass, $\lambda $ and oscillation amplitude.suppose the object is initially at... | 8$\tau $ | general_qa | 156 |
The following is a multiple choice question (with answers).
===Question
A wire shaped as a semicircle of radius \( a \) rotates about an axis \( PQ \) with a constant angular velocity \( \omega = \frac{1}{\sqrt{LC}} \), driven by an external agent. A uniform magnetic field \( B \) exists in space and is directed into t... | The maximum power delivered by the external agent is $\displaystyle\frac{\pi^2B^2a^4}{4LCR}$ | general_qa | 259 |
The following is a multiple choice question (with answers).
===Question
Using a top-down upper filter to build a complete binary heap of size n, the worst-case time complexity is?
===Choices
O(n^3)
O(n^2)
O(n)
O(loglog(n))
O(sqrt(n))
O(2n)
O(n/log(n))
O(n + log(n))
O(lgn)
O(nlgn) | O(nlgn) | general_qa | 87 |
The following is a multiple choice question (with answers).
===Question
During the consumption of soy sauce, a film may sometimes form on its surface. What microorganisms are responsible for the formation of this film?
===Choices
Acetic acid bacteria
Aspergillus oryzae
Yeast for membrane production
Saccharomyces cerev... | Torulopsis | general_qa | 105 |
The following is a multiple choice question (with answers).
===Question
Yellow plastic bags containing biomedical wastes are treated by:
===Choices
Autoclaving
Incineration
Pyrolysis
Composting
Sterilization
Shredding
Microwaving
Sterilization and Composting
Chemical Treatment
Plasma Treatment | Incineration | general_qa | 69 |
The following is a multiple choice question (with answers).
===Question
What is the type genus of the Ericaceae family?
===Choices
Andromeda
Vaccinium
Arctostaphylos
Erica
Pyrola
Calluna
Rhododendron
Ledum
Arbutus
Azalea | Calluna | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
What country invented the first passive sonar that could range and Orient?
===Choices
Italy
Russia
United Kingdom
America
China
Canada
Germany
Japan
Australia
France | America | general_qa | 51 |
The following is a multiple choice question (with answers).
===Question
A spring lies along the x-axis attached to a wall at one end and a block at the other end. The block rests on a friction less surface at x = 0. A force of constant magnitude F is applied to the block that begins to compress the spring, until the bl... | Equal to both | general_qa | 186 |
The following is a multiple choice question (with answers).
===Question
The displacement of a particle executing periodic motion is given by $y = 4{\cos ^2}\frac{t}{2}\left( {1000t} \right)$.
The number of independent simple harmonic motions is
===Choices
$$1$$
6
$$2$$
$$5$$
3
$$4$$ | $$2$$ | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
$5kW/250V$ DC motor uses three-phase bridge fully controlled rectifier circuit power supply, armature resistance \( $R_{a}=5 \, \Omega$\), \( $L_{\mathrm{B}}=1 \, \mathrm{mH}$ \),\( $\alpha=60^{\circ}$\), assuming that the flat wave reactor is larg... | $$
\operatorname{c o s} \varphi_{2}={\frac{P} {S_{2}}} {=} 0. 4 7
$$ | general_qa | 510 |
The following is a multiple choice question (with answers).
===Question
In a game of Carrom board, the Queen ( a wooden disc of radius $2cm$ and mass $50gm$) is placed at the exact center of the horizontal board. The striker is a smooth plastic disc of radius $3cm$ and mass $100gm$. The board is frictionless. The strik... | $$\dfrac { 5 }{ \sqrt { 17 } } cm,\quad 153L/30u$$ | general_qa | 498 |
The following is a multiple choice question (with answers).
===Question
A mirror $\left( {\mu = \frac{3}{2}} \right)$ is $10cm$ thick. An object is placed $15cm$ in front of it. The position of image from the front surface is
===Choices
18.36cm
21.66cm
18.33cm
$$28.34cm$$
$$35cm$$
18.35cm
21.65cm
$$21.67cm$$
18.34cm
... | $$10.34cm$$ | general_qa | 142 |
The following is a multiple choice question (with answers).
===Question
A certain single-pass shell-and-tube heat exchanger with a heat transfer area of $25 \mathrm{m}^2$ is used for cooling hot oil with counterflow water in the tube side. Under the original operating conditions, the water flow rate is $2 \mathrm{kg/s}... | 62.2°C | general_qa | 340 |
The following is a multiple choice question (with answers).
===Question
The directory entry of a certain file system is composed of a filename and an index node number. If each directory entry is 64 bytes in length, with 4 bytes used to store the index node number and 60 bytes to store the filename, and the filename co... | $$2^{32}$$ | general_qa | 173 |
The following is a multiple choice question (with answers).
===Question
A 30-year-old female has had a lump on her back, redness, swelling, and pain for 3 days, with chills and a fever of 39°C. Physical examination reveals a 3cm x 5cm mass on the back, with a fluctuant sensation on palpation. After local drainage of th... | Search for other sources of infection | general_qa | 207 |
The following is a multiple choice question (with answers).
===Question
A uniform infinite magnetic medium cylinder with a radius of $R_{1}$ and an absolute permeability of $\mu_{1}$ uniformly conducts a current $I$. Outside it, there is an infinite long coaxial cylindrical surface with a radius of $R$, carrying a surf... | $$
H=\frac{1} {2 \pi R_{1}^{2}} \, r \,, B=\frac{\mu_{1} \, I} {2 \pi R_{1}^{2}} \, r
$$ | general_qa | 620 |
The following is a multiple choice question (with answers).
===Question
Refer to the Carnot cycle of an ideal gas shown in the figure Let $W _ { a \rightarrow b } , W _ { b \rightarrow c } , W _ { c \rightarrow d }$ and $W _ { d \rightarrow a }$ represent the work done by the system during the processes $a \righta... | $2,3$ and $4$ only | general_qa | 352 |
The following is a multiple choice question (with answers).
===Question
What frequency range is shortwave radio usually broadcast in?
===Choices
3-30MHz
2.8-30.4MHz
2.5-30.5MHz
2.9-30.1MHz
2.8-30.5MHz
2-28MHz
2.8-30.2MHz
2.6-30.4MHz
2.8-30.0MHz
2.7-30.3MHz | 3-30MHz | general_qa | 119 |
The following is a multiple choice question (with answers).
===Question
Which of the following is not a precancerous lesion?
===Choices
Leukoplakia
Chronic atrophic gastritis
Chronic duodenitis
Intraductal papillary hyperplasia of the breast
Familial adenomatous polyposis
Chronic superficial gastritis
Chronic gastric ... | Duodenal ulcer | general_qa | 92 |
The following is a multiple choice question (with answers).
===Question
The reduction reaction of $\mathrm{W O}_{3}$ by $\mathrm{H_{2}}$ is $\mathrm{W O_{3} ( s )}+3 \mathrm{H_{2}}=\mathrm{W ( s )}+3 \mathrm{H_{2} O ( g )}$. Calculate the equilibrium constant at 1500K and the equilibrium concentration of $\mathrm{H_{2}... | $$
1.98, 3 3. 5 6 \%
$$ | general_qa | 307 |
The following is a multiple choice question (with answers).
===Question
Assuming solids are divided into two categories: 100% metal iron meteorites and silicate rocks containing 10% iron, and assuming the solar system has the same metal content as Earth, what proportion of total meteorite mass is iron to stone?
===Cho... | 0.75 | general_qa | 120 |
The following is a multiple choice question (with answers).
===Question
There is a chimney with a geometric height of 65m, and the measured ground wind speed is 3.2m/s. The atmospheric stability level is B, and the stability parameter m is 0.15. Therefore, the wind speed at the chimney outlet is () .
===Choices
4.66m/... | 4.24m/s | general_qa | 145 |
The following is a multiple choice question (with answers).
===Question
"The Little Village that Grew," a local history published in 1987 and contributed to by the Northside Community Association, is about which Alberta village?
===Choices
Central Red Deer.
Northside Red Deer.
North Red Deer.
Northside Red Deer Villag... | North Red Deer. | general_qa | 94 |
The following is a multiple choice question (with answers).
===Question
A rectangular loop consists of $N$ closed wrapped turns and has dimensions $a\times b$. The loop is hinged along the Y-axis. What is the magnitude of the torque exerted on the loop by a uniform magnetic field $B={B}_{0}$ directed along the X-axis w... | $$-\cfrac { 4{ Ni }_{ 0 }ab{ B }_{ 0 }\hat { j } }{ 5 } $$ | general_qa | 427 |
The following is a multiple choice question (with answers).
===Question
Calculate the interest rate (between 0 and 1) for an account that started with $5,000 and now has $13,000 and has been compounded annually for the past 12 years. Answer with the numeric value.
===Choices
0.0500
0.0756
0.1100
0.0932
0.0695
0.0999
0... | 0.0828 | general_qa | 139 |
The following is a multiple choice question (with answers).
===Question
Symptomatic spinal injury without any radiological evidence most commonly found in:
===Choices
Young teenagers
Infants and young children
Middle-aged adults
Teenagers
Young children
Young adults
Infants
Children
Elderly
Adolescents | Children | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
The clock speed of a certain CPU is 10MHz. Given that each machine cycle contains an average of 4 clock cycles, the average instruction execution speed of this machine is 1 MIPS. To achieve an average instruction execution speed of 800,000 instruct... | 80MHz | general_qa | 129 |
The following is a multiple choice question (with answers).
===Question
What is the standard numerical value for the basic modulus?
===Choices
100mm
110mm
90mm
60mm
150mm
50mm
70mm
120mm
80mm
200mm | 100mm | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
Early in pediatric growth and development, all bone marrow is red and involved in hematopoiesis. Subsequently, adipose tissue (yellow bone marrow) gradually replaces the hematopoietic tissue in the long bones, which occurs during the period of ____... | Starting at age 5 to 7 | general_qa | 167 |
The following is a multiple choice question (with answers).
===Question
The general solution of the equation $( x+y ) ( \mathrm{d} x-\mathrm{d} y )=\mathrm{d} x+\mathrm{d} y$ is ( )?
===Choices
$$
x-3y-\operatorname{l n} (2 x+3y )=C \ .
$$
$$
x-y-\operatorname{l n} ( x+y )=C \ .
$$
$$
3x-2y-\operatorname{l n} ( 2x+3y ... | $$
x-y-\operatorname{l n} ( x+y )=C \ .
$$ | general_qa | 294 |
The following is a multiple choice question (with answers).
===Question
A sound source emits frequency of $180\ \text{Hz}$ when moving towards a rigid wall with speed $5\ \text{m/s}$ and an observer is moving away from wall with speed $5\ \text{m/s}.$ Both source and observer moves on a straight line which is perpendic... | $$8\ \text{beats/s}$$ | general_qa | 231 |
The following is a multiple choice question (with answers).
===Question
How are vertigo structures formed?
===Choices
Due to the variations in components and formation conditions, the coexistence of two or more mineralogical structures in the same space results in an extremely complex primary anomaly.
Owing to changes... | Due to the variations in components and formation conditions, the coexistence of two or more mineralogical structures in the same space results in an extremely complex primary anomaly. | general_qa | 302 |
The following is a multiple choice question (with answers).
===Question
Urban areas of special value to humans or areas with potential natural disasters are referred to as ( ).
===Choices
Urban Important
Urban Vulnerable Region
Urban Sensitive Area
Urban Hazard Area
Urban Special Sector
Urban Critical Point
Urban High... | Urban Sensitive Area | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
For two types of cells with significantly different cell cycle durations, what is typically the most distinct phase between them?
===Choices
Metaphase
M phase
G₂ phase
S phase
G₁ Phase
Prophase
Cytokinesis
Telophase
Quiescent phase
Interphase | G₁ Phase | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the crystal ball sequence for a two-dimensional net known as the 4.8.8 tiling in mathematical crystallography. Given the input x_list (a series of values): [40, 41, 42, 43, 44, 45, 46, 47, 48, 4... | [2188, 2297, 2409, 2524, 2641, 2761, 2884, 3009, 3137, 3268] | general_qa | 716 |
The following is a multiple choice question (with answers).
===Question
The process experienced by the development of data management technology is: ( ).
===Choices
Free System - File Management - Database
Free Management - File system - Database
Database - File System - Free Management
Management Suite - Database - F... | Free Management - File system - Database | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
The Chinese Southern Dynasties scholar Wang Wei's work _____ is a theoretical treatise on landscape painting.
===Choices
Aesthetic Visions.
Harmonies in Color.
Insights into Perspective.
Narrative on Painting.
Principles of Composition.
Essence of... | Narrative on Painting. | general_qa | 94 |
The following is a multiple choice question (with answers).
===Question
What are the three types of gas flotation separation methods?
===Choices
Chemical absorption, mist separation, and emulsion resolving.
Molecular diffusion, coagulation flotation, and solvation dynamics.
Ion flotation, precipitate flotation, and so... | Ion flotation, precipitate flotation, and solvent sublation. | general_qa | 151 |
The following is a multiple choice question (with answers).
===Question
In production, grass powder is often pressed into pellets , and crushed hay is processed into ____, grass cake.
===Choices
a sheet of paper
a box of flowers
a block of grass
a pot of mud
a pile of dirt
a bush of herbs
a roll of hay
a stack of leav... | a block of grass | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
The name yellow journalism originated from a magazine founded by which literary group?
===Choices
New Fiction Press
Golden Publishing
Literary Weekly
Gold News Journal
Yellow Magazine
Novel Journal Group
Pulp Fiction Congress
Penny Press Society
I... | Yellow Magazine | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
Let $x_{k} = x_{0} + k h, k = 0, 1, 2, 3$. What is $$\operatorname*{max}_{x_{0} \leqslant x \leqslant x_{3}} | l_{2} ( x )$$?
===Choices
$$
\approx0. 7 6 3 9
$$
$$
\approx1. 0 3 4 8
$$
$$
\approx1. 0 5 6 3
$$
$$
\approx1. 0 1 4 6
$$
$$
\approx0. 9... | $$
\approx1. 0 5 6 3
$$ | general_qa | 254 |
The following is a multiple choice question (with answers).
===Question
An organic compound was found to contain only $\mathrm{C}, \mathrm{H},$ and Cl. When a 1.50-g sample of the compound was completely combusted in air, 3.52 $\mathbf{g}$ of $\mathrm{C O_{2}}$ was formed. In a separate experiment the chlorine in a 1.0... | $$
\mathrm{C_{6} H_{5} C l.}
$$ | general_qa | 323 |
The following is a multiple choice question (with answers).
===Question
Which of the following best describes the concept of "social exchange theory"?
===Choices
The notion that societal bonds are trades where humans strive to escalate profits and decline losses
The theory that social connections are agreements where ... | The view that social interactions are transactions where individuals seek to maximize rewards and minimize costs | general_qa | 199 |
The following is a multiple choice question (with answers).
===Question
Given a receiver input circuit with an equivalent resistance of 600Ω, an input circuit bandwidth of 6MHz, and an ambient temperature of $27^{\circ} \mathrm{C}$, calculate the equivalent value of thermal noise voltage generated by the circuit.
===C... | $$
V=7. 7 2 \times1 0^{-6} ( \mathrm{V} )
$$ | general_qa | 342 |
The following is a multiple choice question (with answers).
===Question
Suppose $(X_1, \cdots, X_{16})$ is a sample drawn from the population $X \sim N(1, \sigma^2)$, where $X$ is the sample mean. Given that $Y = aX + b \sim N(0, 1)$, then we have ().
===Choices
$$a=\frac2\sigma,b=-\frac2\sigma $$
$$a=-\frac4\sigma,b=... | $$a=-\frac4\sigma,b=\frac4\sigma $$ | general_qa | 247 |
The following is a multiple choice question (with answers).
===Question
A Chinese company exported a batch of rice, which was soaked in seawater for a long time due to an insurance accident and sprouted, losing its original use. This loss belongs to ( ).
===Choices
Constructive total loss
General average
Salvage loss
... | Actual total loss | general_qa | 97 |
The following is a multiple choice question (with answers).
===Question
What is the main measure taken to improve the torsional strength of container ships?
===Choices
Thickening the bottom plates
Shortening the ship length
Thickening the mast side plates
Installing double hull | Installing double hull | general_qa | 57 |
The following is a multiple choice question (with answers).
===Question
Regarding the narrative of Russian literary history, the correct statements are:
I. Unlike Western postmodern literature, most works of Russian postmodern literature are not purely wordplay but focus on national spirit, moral ethics, cultural herit... | I and II and III | general_qa | 182 |
The following is a multiple choice question (with answers).
===Question
A set of tube heat exchanger with longitudinal fins on the outside of the inner tube. In this heat exchanger, water is used to cool the air, which should go () (between the inner tubes or the shells between the inner and outer tubes) and water () (... | the shells between the inner and outer tube,inner tube | general_qa | 196 |
The following is a multiple choice question (with answers).
===Question
What year was the municipality of El Retiro, Antioquia, Colombia, founded?
===Choices
1780
1782
1787
1791
1788
1785
1792
1789
1790
1795 | 1790 | general_qa | 84 |
The following is a multiple choice question (with answers).
===Question
A ferromagnetic core coil is formed by tightly winding insulated wire around an iron ring, with the central length of the ring being 600 mm and a cross-sectional area of $1000 \, \text{mm}^2$. To produce a magnetic flux density of $B = 1.0 \, \text... | $$
2. 2 \times1 0^{3}~\mathrm{A·t}
$$ | general_qa | 398 |
The following is a multiple choice question (with answers).
===Question
Indefinite integral $\int{{\cos}^{2}x{\sin}^{3}x\,dx=}$
===Choices
-\frac{1}{5}{\cos}^{5}x-\frac{1}{3}{\cos}^{3}x+C
-\frac{1}{5}{\cos}^{5}x+\frac{1}{3}{\sin}^{3}x+C
\frac{1}{5}{\cos}^{5}x+\frac{1}{3}{\cos}^{3}x+C
$ rac{1}{5}{\sin}^{5}x- rac{1}{3}{... | $\frac{1}{5}{\cos}^{5}x-\frac{1}{3}{\cos}^{3}x+C$ | general_qa | 351 |
The following is a multiple choice question (with answers).
===Question
Assuming there is a bond with a coupon rate of 8%, a face value of 1000 yuan, a term of 30 years, and interest paid semi-annually. If the current selling price is 1276.76 yuan, what is the yield to maturity for an investor who purchases the bond at... | 6% | general_qa | 128 |
The following is a multiple choice question (with answers).
===Question
Let $U = [0, 10]$ be the universe of discourse. For $\lambda \in [0, 1]$, if the $\lambda$-cut sets of fuzzy set $A$, denoted as $\mathrm{F}$, are given by
$$
A_{\lambda} =\begin{cases}
[0, 10] & \lambda = 0 \\
[3, 10] & 0 < \lambda \leqslant \frac... | $$
\mathrm{Supp}A=
\begin{bmatrix}
3,10
\end{bmatrix},\mathrm{Ker}A=
\begin{bmatrix}
5,10
\end{bmatrix}
$$ | general_qa | 622 |
The following is a multiple choice question (with answers).
===Question
What are the main principles for selecting evaluation indicators?
===Choices
Scientific nature, purposefulness, reliability, and timeliness
Scientific nature, relevance, comprehensiveness, and practicality
Practicality, relevance, completeness, an... | Scientific nature, purposefulness, comprehensiveness, and feasibility | general_qa | 151 |
The following is a multiple choice question (with answers).
===Question
Which factors have the greatest impact on the maximum oxygen uptake (VO2 max) in the human body?
===Choices
Environment, Hobbies, Education
Diet, Profession, Ethnicity
Family size, Social status, Eye color
Exercise type, Income, Birth order
Blood ... | Age, Gender, Genetics | general_qa | 114 |
The following is a multiple choice question (with answers).
===Question
Given: Water at 20°C flows parallel over a flat plate at a velocity of $2 \mathrm{m/s}$, with the velocity distribution within the boundary layer following a cubic polynomial.
Task: Calculate the mass flow rate of fluid within the boundary layer at... | $$
1. 8 3 4 \quad k g / m^{2}
$$ | general_qa | 311 |
The following is a multiple choice question (with answers).
===Question
Select a point randomly in the interval (0,1) and denote it as X.
$\mathrm{P} \ \ ( \mathrm{X}^{2} \!-\! 3 \mathrm{X} / 4 \!+\! 1 / 8 \! \geq\! 0 )$ is ____.
===Choices
0.60
0.75
0.50
0.20
0.95
0.40
0.30
0.25
1.00
0.85 | 0.75 | general_qa | 137 |
The following is a multiple choice question (with answers).
===Question
In a normal abdominal examination, which of the following organs should not be palpated?
===Choices
Pancreas
Gallbladder
Small intestine
Lumbar vertebrae
Cecum
Stomach
Sigmoid colon
Large intestine
Liver
Spleen | Spleen | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
If an object is composed of normal atomic matter (without requiring electron degeneracy pressure to resist gravitational collapse), and its density is $10^{4} \ \mathrm{kg} / \mathrm{m}^{3}$, what is its maximum possible mass?
===Choices
$$5 \time... | $$5 \times 10^{27} \mathrm{kg}$$ | general_qa | 260 |
The following is a multiple choice question (with answers).
===Question
A buffer solution $0.04$M in $Na_2HPO_4$ and $0.02$M in $Na_3PO_4$ is prepared. The electrolytic oxidation of $1.0$ milli-mole of the organic compound RNHOH is carried out in $100$ mL of the buffer. The reaction is $RNHOH+H_2O \rightarrow RNO_... | $$7.5$$ | general_qa | 249 |
The following is a multiple choice question (with answers).
===Question
Under Chinese law,After getting into an argument with a stranger named Cui, A pushed his shoulder and kicked him on the buttocks. Cui suddenly felt chest discomfort, collapsed, and later died while receiving medical treatment at the hospital. The a... | There is a causal relationship between A's actions and Cui's death, which is an objective fact. | general_qa | 243 |
The following is a multiple choice question (with answers).
===Question
Julie Mehretu was awarded the Barnett and Annalee Newman Award for the first time in what year?
===Choices
2014
2019
2018
2016
2015
2011
2012
2017
2013
2010 | 2013 | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
A strip foundation has a base width $b=1.8 \mathrm{m}$ and a burial depth $d=1.2 \mathrm{m}$. The foundation soil is clay with a standard internal friction angle $\varphi_{k}=20^{\circ}$ and a standard cohesion value $c_{k}=12 \mathrm{kPa}$. The gr... | $$
1 4 4. 3 \mathrm{k P a}
$$ | general_qa | 359 |
The following is a multiple choice question (with answers).
===Question
The equation of a wave on a string of linear mass density $ 0.04 k g m ^ { - 1 } \text { is given by } y = 0.02 ( m ) \left[ 2 \pi \left[ \frac { 1 } { 0.04 ( s ) } \frac { x } { 0.50 ( m ) } \right) \right] $ The tension in the string is
===Choic... | 6.25 N | general_qa | 165 |
The following is a multiple choice question (with answers).
===Question
What change in pressure is required to compress a gas under isothermal conditions to quarter of its original volume?
( set $p$ as the initial pressure of the gas )
===Choices
$$
\left( {\frac{1} {3}} \right) p
$$
$$
3p
$$
$$
\left( {\frac{7} {4}} ... | $$
\left( {\frac{3} {4}} \right) p
$$ | general_qa | 211 |
The following is a multiple choice question (with answers).
===Question
If the Ro-Ro ship is used to load and unload the cargo in the "wheeled" way, all the wrong options are selected (1) The loading and unloading speed is slow, the utilization rate of the cargo hold is low, and it is suitable for long-distance transpo... | (1)(2)(3) | general_qa | 226 |
The following is a multiple choice question (with answers).
===Question
Solve the equation for $x$:
$$
\frac{ 3 }{ \log_{2}(10) }-\log_{10}(x-9)=\log_{10}(44)
$$
===Choices
9.181818181818186
9.181818181818188
9.181818181818189
9.181818181818182
9.181818181818184
9.181818181818180
9.181818181818187
9.181818181818185
9.... | 9.181818181818182 | general_qa | 244 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the number of segments used to represent the digit n on a seven-segment calculator display, where the segments required for the digits '0' to '9' are as follows: 6 for '0', 2 for '1', 5 for '2',... | [9, 13, 12, 9, 5, 8, 8, 7, 8, 9] | general_qa | 516 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the canonical enumeration of integers where the sequence starts with zero and alternates between positive and negative integers. Given the input x_list (a series of values): [53, 54, 55, 56, 57,... | [27, -27, 28, -28, 29, -29, 30, -30, 31, -31] | general_qa | 509 |
The following is a multiple choice question (with answers).
===Question
The procedure below is intended to display the index in a list of unique names (nameList) where a particular name (targetName) is found. lf targetName is not found in nameList, the code should display 0.
PROCEDURE FindName (nameList, targetName)
{
... | FindName (["Andrea", "Ben", "Chris"], "Ben") | general_qa | 393 |
The following is a multiple choice question (with answers).
===Question
What are the coordinates of the intersection of line ${\frac{x-1} {3}}={\frac{y+1} {-4}}={\frac{z+2} {-2}}$ and plane $4 x+5 y-3 z-7=0$ ?
===Choices
$$
(1, 3, 0 )
$$
$$
(2, 1, 0 )
$$
$$
(-2, 3, 0 )
$$
$$
(-2, 3, 1 )
$$
$$
(-2, 3, 2 )
$$
$$
(-2, 3,... | $$
(-2, 3, 0 )
$$ | general_qa | 205 |
The following is a multiple choice question (with answers).
===Question
______ proposed the theory of "movie glasses" in the early 1920s.
===Choices
Boris Barnet
Dziga Vertov
Alexander Dovzhenko
Lev Kuleshov
Vsevolod Pudovkin
Andrei Tarkovsky
Sergei Eisenstein
Grigori Aleksandrov
Abram Room
Mikhail Romm | Dziga Vertov | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
Which of the following is the lower alveolar point?
===Choices
Point D
Key gnathion
Point A
Gnathion D
Point B
Gn point
S point
S Gnathion
N point
Joint point | Point B | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
$K_C$ for $PCl_3(g) + Cl_2(g) \rightleftharpoons PCl_5(g) $ is $15 M^{-1}$. The no. of moles of $PCl_5$ to be introduced in a 2.5 it vessel (initially evacuated) to obtain $[Cl_2] = 0.2 M$
===Choices
79/8
75/8
None of these
17/4
77/8
73/8
2
81/8
3... | 79/8 | general_qa | 146 |
The following is a multiple choice question (with answers).
===Question
For a certain site, cement-mixed columns are planned to be used for ground reinforcement. It is known that the foundation depth is 2.0m, the diameter of the mixing column is 600mm, the column length is 14.0m, and the column strength is $f_{\mathrm{... | 98.6kPa | general_qa | 268 |
The following is a multiple choice question (with answers).
===Question
Given that the input power of a certain transmitting antenna is $675 \pi \, \text{(W)}$, with a conversion efficiency of 80% and an effective area of $A_{e}=4 \, \text{m}^{2}, f=3 \, \text{GHz}).$ At point $P$, use a receiving antenna with $D=144$ ... | $$
{\frac{3 6 \times1 0^{-2}} {\pi}} ( \mathbf{m}^{2} )
$$
$$
2 1. 6 \ ( \mu\mathbf{W} )
$$ | general_qa | 647 |
The following is a multiple choice question (with answers).
===Question
A particle executing $S.H.M$ of amplitude $4\ cm$ and $T=4\ sec$. The time taken by it move from positive extreme position to half the amplitude is:-
===Choices
$$\dfrac {2}{3}\ sec$$
$$1\ sec$$
$$\dfrac {1}{3}\ sec$$
$$\dfrac{1}{8}\ sec$$
$$\dfra... | $$\dfrac {1}{3}\ sec$$ | general_qa | 173 |
The following is a multiple choice question (with answers).
===Question
Two straight conducting rails from a right angle where their ends are joined. A conducting bar in contact with the rails starts at the vertex at time t=0 and moves with constant velocity v along them as shown in figure. magnetic fields $\overrighta... | $$v^2$$ | general_qa | 128 |
The following is a multiple choice question (with answers).
===Question
The degree of dissociation is $0.4$ at $400$K and $1.0$ atm for the gaseous reaction $PCl_5\rightleftharpoons PCl_3+Cl_2$. Assuming ideal behaviour of all the gases, calculate the density of equilibrium mixture at $400$K and $1.0$ atm. (Relative at... | 4.53 | general_qa | 174 |
The following is a multiple choice question (with answers).
===Question
Among the following options, which description related to "horizontal configuration" is correct?
===Choices
This refers to the planar layout and rational planning of various types of forests beyond the watershed range of the soil and water conserv... | This refers to the planar layout and rational planning of various types of forests within the watershed range of the soil and water conservation forest system. | general_qa | 264 |
The following is a multiple choice question (with answers).
===Question
A piece of standard wet Masson pine wood has a tangential dimension of 20 cm and a radial dimension of 15 cm. It is desired to dry it to a moisture content of 6%, with the tangential and radial dimensions changing to 10 cm and 12 cm, respectively. ... | Tangential shrinkage coefficient=2.08, Radial shrinkage coefficient=0.83, Differential shrinkage=2.5 | general_qa | 401 |
The following is a multiple choice question (with answers).
===Question
Which type of aeration tank is only suitable for circumstances where the quality and quantity of inflowing water are relatively stable?
===Choices
Closed-loop circulation style
Fixed Volume Circulation
Cyclical Batch Mode
Complete Hybrid Model
Sin... | Flow Pushed Type | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
The head of delivery marked on the nameplate of a certain centrifugal pump is 25m, what does this refer to?
===Choices
Minimum flow capacity
Standard operational flow level
Maximum head of delivery at maximum flow rate
Head of delivery correspondi... | Maximum Efficiency Head | general_qa | 103 |
The following is a multiple choice question (with answers).
===Question
Which of the following respiratory organs belongs to molluscs?
===Choices
filter gill
bead gill
fan lung
spiral vent
comb gill
bead lung
scale gill
spiral lung
shell vent
filter lung | comb gill | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
Let |n> represent the s-state of the nth lattice point in a one-dimensional lattice. Under the tight binding approximation that only takes into account the nearest neighbor interaction, write down the expression of the known array element <m|H|n>.
... | a_{m},E_{0},-J_{0},-J_{1},e^{-ik(R_{m},-R_{n},)}, | general_qa | 386 |
The following is a multiple choice question (with answers).
===Question
A transducer uses a copper titanate bending bilayer crystal, with an equivalent circuit similar to Problem 3-55. Its component parameters are: $n=0.0068l/mt$, $C_{\mathrm{m}}=40.6 \times 10^{-12} l^{3}/wt^{3}$, $M_{\mathrm{m}}=1530lwt$; $C_{\mathrm... | 0.25V | general_qa | 288 |
The following is a multiple choice question (with answers).
===Question
To extract DNA from a certain biological tissue for analysis, the sum of G and C bases accounts for 46% of the total number of bases. It is also known that Λ accounts for 28% in one single strand of the DNA. What percentage of the bases in the othe... | 26% | general_qa | 114 |
The following is a multiple choice question (with answers).
===Question
Female, 52 years old. Shortness of breath for 3 months, chest radiograph shows widened mediastinum and narrowing of the right upper lobe bronchus, considered to be _____
===Choices
Hemorrhagic Sarcoma
Pleural Mesothelioma
Thymoma
Pulmonary Tubercu... | Central Lung Cancer | general_qa | 131 |
The following is a multiple choice question (with answers).
===Question
Choose from among the following cipher systems, from best to worst, with respect to ease of decryption using frequency analysis.
===Choices
Playfair, Random Polyalphabetic, Vignere, Plaintext
Random Polyalphabetic, Playfair, Vignere
Random Polyalp... | Random Polyalphabetic, Vignere, Playfair, Plaintext | general_qa | 194 |
The following is a multiple choice question (with answers).
===Question
What is the essential medicine for clearing away heat and extinguishing wind?
===Choices
Crocodile scales
Bear bile
Lion teeth
Rhinoceros horns
Shark fins
Elephant tusks
Buffalo tails
Tiger bones
Antelope horns
Leopard spots | Antelope horns | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
As the drop pressure ratio of the high-pressure turbine increases, the common working line of the gas generator ( ).
===Choices
The slope increases
Stay still
Operate closer to safety margin
Stay away from the flutter boundary
Near the flutter bou... | Stay away from the flutter boundary | general_qa | 64 |
The following is a multiple choice question (with answers).
===Question
What are the masterpieces of Aeschylus?
===Choices
"The Legacy of Zeus", "The Oracle's Prophecies", "The Heroes' Trials", "The Legacy of Zeus"
"The Adventures of Heracles", "The Labors", "The Nemean Lion", "The Adventures of Heracles"
"Oresteia", ... | "The Bound Prometheus" "Agamemnon," "The Eumenides," "The Bound Prometheus" | general_qa | 245 |
The following is a multiple choice question (with answers).
===Question
When $CO_{2}$ gas enters an adiabatic converging nozzle, its flow speed is $100 \ \mathrm{m/s}$, with a pressure of 0.5 MPa and a temperature of 473 K. The nozzle back pressure $p_{\mathrm{b}}$ is 0.28 MPa, and the mass flow rate $q_{m}$ is 2 kg/s.... | $$
1. 7 1 3 {\times} 1 0^{-3} \mathrm{~ m}^{2}
$$
$$
3 1 9. \ 1 \ \mathrm{m / s}
$$ | general_qa | 701 |
The following is a multiple choice question (with answers).
===Question
For the cyclic trimerisation of a acetylene to give one mole of benzene $K_{c}=4li^{2}\ mol^{-2}$ if the equilbrium concentration of benzene is $0.5\ mol\ L^{-1}$ calculate the equilbrium concentration of acetylene.
===Choices
$$0.1\ mol\ L^{-1}$$... | $$0.1\ mol\ L^{-1}$$ | general_qa | 198 |
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