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
Let ${,{{f}_{n}}{(x)=}{sin}{\frac{x}{n}}}$, then ${,{{f}_{n}}{(x)}}$ on ${(-}{\infty }{,+}{\infty }{)}$ is ()
===Choices
converges uniformly on the entire real line
does not converge
converges but not uniformly
converges uniformly on a bounded int... | converges but not uniformly | general_qa | 140 |
The following is a multiple choice question (with answers).
===Question
Sulphide ion reacts with solid sulphur
$$ \mathrm { s } _ { ( \mathrm { aq } ) } ^ { 2 - } + \mathrm { S } _ { ( \mathrm { s } ) } \rightleftharpoons \mathrm { S } _ { 2 ( \mathrm { aq } ) } ^ { 2 - } ; \mathrm { K } _ { 1 } = 10 $$
$$ \mathrm { s... | 11 | general_qa | 285 |
The following is a multiple choice question (with answers).
===Question
We are search a pattern of size m in a text string of size n using the BM algorithm with BC+GS strategy. What's the time complexity for the best/worst case?
===Choices
O(n/m), O(n+m)
O(n/m), O(n+m+1)
O(n/m), O(m+n+1)
O(n/m), O(nm)
O(n), O(m+n)
O(n... | O(n/m), O(m+n) | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
Who was the first person to use an electric motor to propel a spacecraft?
===Choices
Hermann Oberth
Konstantin Tsiolkovsky
Robert Goddard
Gaston Tissandier | Gaston Tissandier | general_qa | 56 |
The following is a multiple choice question (with answers).
===Question
Multi-source information fusion is a technology that integrates and matches information from various remote sensing platforms, multi-temporal remote sensing data, and remote sensing data with __________ remote sensing data.
===Choices
physical
sin... | non-remote | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
Male, 30 years old with pulsatile tinnitus, blue tympanic membrane, conductive hearing loss for 2 years. CT shows a soft tissue mass in the tympanic cavity. The most likely diagnosis is ____.
===Choices
Eustachian tube dysfunction, ear popping, pr... | Glomus tumor, exposed internal jugular vein | general_qa | 185 |
The following is a multiple choice question (with answers).
===Question
A 68-year-old man is brought to the physician by his wife because she is concerned about his speech being irregular. Specifically, she says that over the last 8 months, her husband has been saying increasingly nonsensical statements at home. In add... | Hyperphosphorylated tau inclusion bodies | general_qa | 264 |
The following is a multiple choice question (with answers).
===Question
In radio astronomy, transitions between highly excited states of hydrogen atoms are observed, such as the transition from $n = 109$ to $n = 108$. Try to determine the wavelength and frequency of the radiation from this transition is____.
===Choice... | $$
5. 8 \mathrm{c m}
$$
$$
5. 1 5 \times1 0^{9} \mathrm{H z}
$$ | general_qa | 449 |
The following is a multiple choice question (with answers).
===Question
The direction of natural processes is from states of
===Choices
chaos to equilibrium
disorder to equilibrium
disorder to organization
equilibrium to higher order
higher order to lower order
lower order to higher order
disorganization to organizati... | higher order to lower order | general_qa | 69 |
The following is a multiple choice question (with answers).
===Question
A point moves in a straight line so that its displacement $x$ m at time t sec is given by $ x^2= 1+t^2$. Its acceleration in $ m/s^2 $ at a time t sec is:
===Choices
$$\cfrac {1} {x} - \cfrac {t^2} {x^3}$$
\cfrac {1} {x} - \cfrac {4t^2} {x^3}
\cf... | $$\cfrac {1} {x} - \cfrac {t^2} {x^3}$$ | general_qa | 274 |
The following is a multiple choice question (with answers).
===Question
A neutral water molecule is placed in electic field $E= 1.25 \times { 10 }^{ 4 } N/C.$ The work done to rotate it by ${ 180 }^{ \circ }\ is \ 2.5 \times { 10 }^{ -25 }J.$ Find aproximate separation of center of charges.
===Choices
$$0.725 \times... | $$0.625\times { 10 }^{ -9 }m$$ | general_qa | 282 |
The following is a multiple choice question (with answers).
===Question
The part of the cerebral cortex that matures earliest in infants is ___.
===Choices
Insular Cortex
Hippocampus
Parietal Lobe
Medulla Oblongata
Temporal lobe
Brainstem
Frontal lobe
Amygdala
Corpus Callosum
Occipital Lobe | Occipital Lobe | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
The system function of an LTI causal system is
$$
H ( z )={\frac{1} {z^{2}+z+0. 2 5+A}}
$$
, Find the range of values of A that makes the system stable ().
===Choices
-0.20<A<0.
-0.40<A<0.60
-0.35<A<0.65
-0.30<A<0.70
0<A<1
-1<A<0
-0.10<A<0.80
-0.1... | -0.25<A<0.75 | general_qa | 176 |
The following is a multiple choice question (with answers).
===Question
A guided wave with an operating wavelength of 8mm is transmitted using a circular waveguide made of copper, with the desired mode being the $TE_{11}$ mode. What are the attenuation constants for the circular waveguide when transmitting in the $\mat... | $$
1.2 8 \ \mathrm{d B / m}
$$
$$
4. 2 0 1 \times1 0^{3} \mathrm{~ d B / m}
$$ | general_qa | 564 |
The following is a multiple choice question (with answers).
===Question
Frozen-core $\mathrm{SCF} / \mathrm{DZP}$ and CI-SD/DZP calculations on $\mathrm{H}_2 \mathrm{O}$ at its equilibrium geometry gave energies of -76.040542 and -76.243772 hartrees. Application of the Davidson correction brought the energy to -76.2545... | 0.9731 | general_qa | 193 |
The following is a multiple choice question (with answers).
===Question
Given that $$f(n) = \sum_{i=0}^{n} 2^{i} = 2^{n+1} - 1 = \overbrace{1 1 \cdots 1 1}^{n+1 \text{ digits}}$$, compute the C language function $f1$ of $f(n)$ as follows:
```c
int f1(unsigned n){
int sum = 1, power = 1;
for (unsigned i = 0, i < n - 1; ... | $$
+\infty,126,23
$$ | general_qa | 434 |
The following is a multiple choice question (with answers).
===Question
Which of the following is a factor affecting the emergence of perceptual states?
===Choices
Regress Duration
Hormone Levels
Advancement Age
Adjustment Interval
Expansion Era
Maturity Phase
Formation Years
Development Stage
Progression Epoch
Evolut... | Hormone Levels | general_qa | 69 |
The following is a multiple choice question (with answers).
===Question
Given that:
$2SO_3(g) \rightarrow 2SO_2(g)+O_2(g)$; $\triangle H^o=+197.8 kj/mol-RXN$
$S(s)+ (\frac { 1 }{ 3 } )O_2(g) \rightarrow SO_3(g)$; $\triangle H^o=-395.7 kj/mol-RXN$
Determine the heat of formation for $SO_2$
===Choices
$$-296.8 kj/mol$$
... | $$+98.9 kj/mol$$ | general_qa | 224 |
The following is a multiple choice question (with answers).
===Question
The variation of rate constant 'K' of a chemical reaction with temperature T is observed to follow the expansion:
$\ln{K} = \alpha + \beta \ln{\left( T - \frac{\gamma}{T} \right)}$
where $\alpha, \beta, \gamma$ are constants, The Arrhenius activati... | $$\beta RT+\gamma R$$ | general_qa | 189 |
The following is a multiple choice question (with answers).
===Question
Two particles are initially (at $t=0$) located at a point $A$. Each of them now start to move with the same constant speed $u$, the first particle moving clockwise on a circle of radius $r$ and center $C$ and the second on the straight line $XY$ wh... | $$\cfrac{u^2}{r}$$ | general_qa | 207 |
The following is a multiple choice question (with answers).
===Question
What is the common urinary system disease in cats?
===Choices
Urolithiasis
Uremia
Glomerulonephritis
Diuresis
Polyuria
Nephrolithiasis
Pyelonephritis
Hydronephrosis
Cystitis
Urethral Obstruction | Cystitis | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
A 47-year-old male presented with a 3-month history of chest pain and progressive dyspnea. MRI examination revealed a well-circumscribed soft tissue mass in the right anterior mediastinum, demonstrating moderately high signal intensity on both T1- ... | Thymoma | general_qa | 181 |
The following is a multiple choice question (with answers).
===Question
Find the volume of the prism with vertices $A(0,0,0)$, $B(4,0,0)$, $C(4,6,0)$, $D(0,6,0)$, $E(0,0,1)$, and $F(4,0,1)$.
===Choices
24
12
8
16
10
18
20
28 | 12 | general_qa | 108 |
The following is a multiple choice question (with answers).
===Question
A $1 \mathrm{~m}^{3}$ adiabatic container is filled with air at the same pressure as the standard atmospheric pressure outside, but the wall of the container has a crack. If the container is slowly heated from 0°C to 20°C, how much heat is absorbed... | $$4.7kJ$$ | general_qa | 252 |
The following is a multiple choice question (with answers).
===Question
Earliest sign of raised ICT is:
===Choices
Silver beaten appearance
Thickening of dorsum sella
Copper beaten appearance
Displacement of dorsum sella
Erosion of dorsum sphenoidale
Displacement of pineal gland
Erosion of dorsum sella
Erosion of petr... | Erosion of dorsum sella | general_qa | 103 |
The following is a multiple choice question (with answers).
===Question
For the curve $x = a \cdot \left(t - \sin(t)\right)$, $y = a \cdot \left(1 - \cos(t)\right)$, determine the curvature. Use $a = 4$.
===Choices
1/(4*|sin(t/2)|)
1/(16*|sin(t/2)|)
1/(32*|sin(t/2)|)
1/(8*|sin(t/2)|)
1/(28*|sin(t/2)|)
1/(12*|sin(t/2)|... | 1/(16*|sin(t/2)|) | general_qa | 161 |
The following is a multiple choice question (with answers).
===Question
Which of the following geometric shapes is a typical projection target in map projection technology?
===Choices
Cone
Sphere
Cylinder
Rectangle
Hexagon
Pentagon
Octagon | Cylinder | general_qa | 52 |
The following is a multiple choice question (with answers).
===Question
If the 101.200.16.0/20 network is divided into 5 subnets, the smallest possible subnet has an allocatable IP address count of ().
===Choices
14
2046
30
126
510
254
6
62
511
1022 | 254 | general_qa | 94 |
The following is a multiple choice question (with answers).
===Question
What is volcaniclastic rock?
===Choices
The rock created from rapid cooling of lava on the earth's surface is called obsidian.
The conglomerate structured by the conglomeration and hardening of several volcanic elements is termed volcanic granite.... | The rock formed by the accumulation and consolidation of various volcanic debris is called volcanic breccia. | general_qa | 201 |
The following is a multiple choice question (with answers).
===Question
What high school did the architect Richard Meier attend?
===Choices
New Jersey High School
New York High School
Queens High School
Columbia High School
Brooklyn High School
Staten Island High School
Columbia Preparatory High School
Bronx High Scho... | Columbia High School | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
What is the bore of a 12 bore gun?
===Choices
0.735"
0.726"
0.727"
0.730"
0.721"
0.729"
0.731"
0.725"
0.723"
0.733" | 0.729" | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
How many countries does the equator cross?
===Choices
13
15
12
16
10
18
19
14
11
17 | 14 | general_qa | 55 |
The following is a multiple choice question (with answers).
===Question
Among the ship's resistance, it belongs to the differential pressure resistance
===Choices
Wave resistance and air resistance
Frictional resistance and wave resistance
Wave-breaking resistance and viscous resistance
Compressive resistance and indu... | Viscous resistance and wave resistance | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
When did the Luzhou Linyu Yangtze River Bridge open to traffic?
===Choices
2024
2020
2022
2026
2025
2027
2029
2021
2023
2028 | 2023 | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
The compressibility factor $z=\dfrac{PV}{nRT}$ of a gas above $T=\dfrac{a}{Rb}$ will be:
===Choices
Always equal to 0.95
Always equal to 1.05
Always equal to unity
Always equal to 0.98
Depends on pressure
Always equal to 0
Always greater than Unit... | Always greater than Unity | general_qa | 117 |
The following is a multiple choice question (with answers).
===Question
Hydrocortisone injection solvent is ().
===Choices
Injection oil
ethanol-glycerol-water complex solvent
Jojoba oil infusion
Dilute ethanol solution
Isopropyl alcohol solution
Hexane-ethanol blend
Dimethyl sulfoxide
Fermented ethanol mixture
Water ... | Dilute ethanol solution | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
The linear speed $V$ of a particle moving in a circle of radius $R$ varies with time t as $V=V_0-Kt$, where $K$ is a positive constant and $V_0$ is initial velocity. The time at which magnitude of tangential acceleration and angular velocity become... | $$\cfrac {(V_0+KR)} K$$ | general_qa | 247 |
The following is a multiple choice question (with answers).
===Question
When using the transportation simplex method to solve the transportation problem, the initial solution must ( ).
===Choices
involve solely basic variables initially
include multiple zero-value allocations
require the maximum cost method
be calcula... | contain a number of non-zero elements | general_qa | 103 |
The following is a multiple choice question (with answers).
===Question
Habrdness of water has a beneficial effect againts which one of the following -
===Choices
Renal diseases
Respiratory diseases
Cerebrovascular accidents
Metabolic diseases
Cerebrovascular diseases
Renal stones
Hypertension
Metabolic syndrome
Cardi... | Cardiovascular diseases | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
Consider the thermodynamic cycle shown on $PV$ diagram. The process $A \to B$ is isobaric, $B \to C$ is and isochoric and $C \to A$ is a straight line process. The following internal energy and heat are given:
$\Delta U_{A \to B} = +400kJ$ and $Q_{... | $$-20kJ$$ | general_qa | 175 |
The following is a multiple choice question (with answers).
===Question
In the shallow sea with uniform hard bottom, the sound speed in the sea water is 1500m/s, and the depth of the sea is 100 meters. What is the horizontal wave number of normal wave No. 1 at a frequency of 1.5kHz?
===Choices
$$
\xi_{1}=\sqrt{k^{2}-k... | $$
\xi_{1}=\sqrt{k^{2}-k_{z 1}^{2}} \approx2 \pi
$$ | general_qa | 379 |
The following is a multiple choice question (with answers).
===Question
Select the complex in which metal have primary valency=2, secondary valency=4 and shows stereo-isomerism:
===Choices
$$PtCl_3.2NH_3$$
$$PtCl_4.3NH_3$$
$$PtCl_4.2NH_3$$
$$PtCl_3.4NH_3$$
$$PtCl_2.2NH_3$$
$$PtCl_3.3NH_3$$
$$PtCl_2.3NH_3$$
$$PtCl_2.4N... | $$PtCl_4.2NH_3$$ | general_qa | 137 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the irregularity index of the n-th prime: the number of integers k, where 1 <= k <= (p-3)/2 and p = prime(n), such that the prime p divides the numerator of the Bernoulli number B(2k). Given the... | [0, 0, 1, 1, 2, 1, 0, 0, 0, 1] | general_qa | 449 |
The following is a multiple choice question (with answers).
===Question
with respect to the hyperbola $(3x-3y{ ) }^{ 2 }-(2x+2y{ ) }^{ 2 }=36$
===Choices
(3,2) lies on tranverse axis
(3,2) lies on directrix
(3,2) lies inside hyperbola
(3,2) lies on the hyperbola's asymptote
(3,2) lies on the hyperbola's focus
(3,2) li... | (3,2) lies on conjugate axis | general_qa | 181 |
The following is a multiple choice question (with answers).
===Question
in a certain region of free space a non-uniform electric field which depends on x-coordinates is given by $ ec E = E_0 x \hat i$. What is the total amount of electric potential energy contained within the cube of sides of length L as shown below?
... | $$ \dfrac{1}{2} \varepsilon_0 E_0^2 L^5 $$ | general_qa | 311 |
The following is a multiple choice question (with answers).
===Question
Which of the following descriptions of unlocking and retaining locks in a transaction process is correct?
===Choices
The S lock must be retained until the end of the transaction to avoid losing updates; The X blockade can be lifted at any time to ... | The X lock must be retained until the end of the transaction to avoid losing updates; The S blockade can be lifted at any time to increase concurrency. | general_qa | 272 |
The following is a multiple choice question (with answers).
===Question
Assuming that the cytoplasm of a diploid plant A is genetically different from that of plant B. In order to study the nuclear cytoplasmic relationship, we want to obtain a plant with A cytoplasm and B genome in the nucleus. How should we proceed?
... | The offspring of AXB continuously backcrossed with B | general_qa | 180 |
The following is a multiple choice question (with answers).
===Question
In an industrial process, nitrogen is heated to $500 \mathrm{~K}$ at a constant volume of $1.000 \mathrm{~m}^3$. The gas enters the container at $300 \mathrm{~K}$ and $100 \mathrm{~atm}$. The mass of the gas is $92.4 \mathrm{~kg}$. Use the van der ... | 140 $\mathrm{~atm}$ | general_qa | 264 |
The following is a multiple choice question (with answers).
===Question
What is the main difference between an avalanche and a tumbling rock?
===Choices
A wildfire underscores rapid fire spread affecting regions; a rolling pebble mainly demonstrates simple directional rolling.
A landslide emphasizes the vertical movem... | A landslide emphasizes the vertical movement process and the hazards it creates; a rolling stone, in addition to its vertical trajectory, also reflects the hazards caused by lateral "rolling". | general_qa | 253 |
The following is a multiple choice question (with answers).
===Question
To reduce the viscosity of a polymer melt by half, estimate how much the weight-average molecular weight of the polymer should be reduced.
===Choices
0.816
0.940
0.810
0.980
0.920
0.750
0.890
1.050
0.700
1.020 | 0.816 | general_qa | 102 |
The following is a multiple choice question (with answers).
===Question
Microtubules are an important type of cytoskeletal structure. Among the following microtubule-related cellular structures, which group exhibits a similar structural pattern of microtubules?
===Choices
Flagella and Spindle Apparatus
Elementary Part... | Elementary Particles and Intermediate Particles | general_qa | 136 |
The following is a multiple choice question (with answers).
===Question
A gas park in two processes in which it is hcated from the same initial state 1 to the same final temperature. The processes are shown on the P - V diagram by the straight lines $1-3$ and $1-2$. $2$ and $3$ are the points on the same isothermal cur... | $$Q_1\, >\, Q_2$$ | general_qa | 227 |
The following is a multiple choice question (with answers).
===Question
What is the full name of the solo exhibition Kara Walker had in 2016?
===Choices
The Ecstasy of St. Kara Walker
The Ecstasy of Kara St. Vincent Walker
The Ecstasy of Kara St. Vincenta
The Ecstasy of Kara St. Vincen Walker
The Ecstasy of Kara St. W... | The Ecstasy of St. Kara | general_qa | 130 |
The following is a multiple choice question (with answers).
===Question
Under the Trade Union Act, 1926, for which of the following purposes are the general funds of a registered trade union NOT permitted to be used?
===Choices
The conduct of trade disputes on behalf of the trade union or any of its members
The paymen... | The maintenance of any person who is a member of any legislative body constituted under the Constitution or any local authority | general_qa | 158 |
The following is a multiple choice question (with answers).
===Question
Which fruit tree is known for requiring a specific number of chilling hours to fruit effectively?
===Choices
Banana
Pineapple
Grape
Cherry
Peach
Orange
Mango
Papaya
Lemon
Apple | Apple | general_qa | 63 |
The following is a multiple choice question (with answers).
===Question
Calculate solubility of $Pb{I}_{2}$ (${K}_{sp}=1/4\times {10}^{-8}$) in water at ${25}^{o}$, which is $90$% dissociated.
===Choices
2.3 \times 10^{-3} \ M
$$7.5 \times 10^{-4} \ M$$
1.8 \times 10^{-3} \ M
1.5 \times 10^{-3} \ M
$$1.6 \times 10^{-3... | $$1.6 \times 10^{-3} \ M$$ | general_qa | 216 |
The following is a multiple choice question (with answers).
===Question
Two spherical planets P and Q have the same uniform density $\rho$, masses $M_P$ and $M_Q$, and surface areas $A$ and $4A$, respectively. A spherical planet R also has uniform density $\rho$ and its mass is $(M_P+M_Q)$. The escape velocities from t... | $$V_P/V_Q=1/2$$ | general_qa | 201 |
The following is a multiple choice question (with answers).
===Question
According to the composition of the drainage channel, soakaway can be divided into pipe soakaway and what?
===Choices
Pressure trench
Sand-based soakaway
Ground infiltration trench
Hole-type soakaway
Layered absorption trench
Gravel drainage pit
P... | Hole-type soakaway | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
When did the "League of Nations" last?
===Choices
August 15, 1920 to July 1942
December 22, 1919 to March 1944
April 10, 1919 to October 1945
September 11, 1921 to May 1948
January 17, 1870 to November 1934
February 3, 1922 to September 1941
March... | January 17, 1870 to November 1934 | general_qa | 203 |
The following is a multiple choice question (with answers).
===Question
When was the first individual business license issued in Wenzhou City?
===Choices
1982
1984
1977
1979
1980
1985
1983
1978
1986
1981 | 1980 | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
For a chemical reaction of the type
$A \rightleftharpoons B,K=2.0$ and $B \rightleftharpoons C,K=0.01$ Equilibrium constant for the reaction $2C \rightleftharpoons 2A$ is
===Choices
$$500$$
$$25$$
$$2500$$
$$200$$
$$100$$
$$400$$
$$2000$$
$$50$$... | $$50$$ | general_qa | 143 |
The following is a multiple choice question (with answers).
===Question
In a rectangular water trough with a width of $a$ and a length of $b$, where the water depth is $h$, determine the possible standing wave frequencies of the fluid.
===Choices
$$
\pi\sqrt{\frac{m^{2}} {a^{2}}+\frac{n^{2}} {b^{2}}}
$$
$$
\pi\sqrt{\f... | $$
\pi\sqrt{\frac{m^{2}} {a^{2}}+\frac{n^{2}} {b^{2}}}
$$ | general_qa | 376 |
The following is a multiple choice question (with answers).
===Question
An ammeter and a voltmeter are connected in series to an ideal battery of emf $E$. If the ammeter reads $I$ and voltmeter reads $V$, then.
===Choices
Ammeter and voltmeter have equivalent resistance $=I/E$
Ammeter and voltmeter have equivalent res... | Ammeter and voltmeter have equivalent resistance $=E/I$ | general_qa | 176 |
The following is a multiple choice question (with answers).
===Question
For the same material, under a certain drying rate, the thicker the material, the critical moisture content ().
===Choices
The minimal
The denser
The lower
The slighter
The larger
The equal
Not necessarily
Unchanging
The less significant
The highe... | The larger | general_qa | 71 |
The following is a multiple choice question (with answers).
===Question
The operation of the labor market is influenced by multiple factors. The internal factors affecting labor market operation include ( ).I. Labor priceII. Government policiesIII. Social cultureIV. Labor supply and demand conditionsV. Social organizat... | I,IV | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
If $Cu{ SO }_{ 4 }.{ 5H }_{ 2 }O\left( s \right) \rightleftharpoons Cu{ SO }_{ 4 }.{ 3H }_{ 2 }O\left( s \right) +{ 2H }_{ 2 }O\left( v \right) { K }_{ p }=1.086\times { 10 }^{ -4 }{ atm }^{ 2 }$ at ${ 25 }^{ \circ }C$. The efflorescent nature of ... | > 7.92 mm | general_qa | 263 |
The following is a multiple choice question (with answers).
===Question
Let the continuous function $f(x)$ satisfy: $f(x) - \int_{0}^{x} f(x-t) \, dt = e^x$, then
$f(x) = ()$.
===Choices
$$\left( x^2+1 \right) \mathrm{e}^{x}$$
$$\left( x+1 \right) \mathrm{e}^{x}$$
$$\left( x+1 \right)^2 \mathrm{e}^{x}$$
$$\left( 2x+1 ... | $$\left( x+1 \right) \mathrm{e}^{x}$$ | general_qa | 265 |
The following is a multiple choice question (with answers).
===Question
Which of the following are common points between knock combustion in gasoline engines and rough operation in diesel engines?(Choose the option that includes all the correct statements) 1.Both occur at the beginning of the rapid combustion phase. 2.... | 345 | general_qa | 146 |
The following is a multiple choice question (with answers).
===Question
Regarding the "new people" portrayed by Turgenev, the correct characters are:
I. Lavretsky
II. Rudin
III. Bazarov
IV. Insarov
===Choices
Only II
Only I
I and II and III
I and II and IV
III and IV
II and III
Only III
II and III and IV
I and III
I a... | III and IV | general_qa | 103 |
The following is a multiple choice question (with answers).
===Question
A stone is thrown vertically upward with a speed of $40 \ m/s$. The time interval for which particle was above $40 \ m$ from the ground is $(g=10 \ m/s^2)$
===Choices
$$3 \ s$$
$$4 \sqrt2 \ s$$
$$8 \ s$$
$$7 \ s$$
$$4s$$
$$2\sqrt2 \ s$$
$$4 \sqrt3... | $$6 \ s$$ | general_qa | 125 |
The following is a multiple choice question (with answers).
===Question
What is the representative work of Thomas Aquinas?
===Choices
Divine Ethics
Faithful Teachings
Comprehensive Theology
Ecclesiast
Spiritual Wisdom
Universal Dogma
Theological Studies
Religious Discourses
Moral Instructions
General Philosophy | Comprehensive Theology | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
Find the area bounded by the spiral r = ln θ on the interval π <= θ <= 2π.
===Choices
5.027
4.81
2.564
1.874
2.931
4.196
3.912
4.456
3.743
2.405 | 3.743 | general_qa | 99 |
The following is a multiple choice question (with answers).
===Question
In foreign trade settled in foreign currency, if the foreign currency appreciates against the local currency, the importer will pay more in local currency. This risk is called ().
===Choices
Currency fluctuation risk
Exchange rate risk
Price risk
... | Transaction risk | general_qa | 86 |
The following is a multiple choice question (with answers).
===Question
At $1000 \, \text{K}, 101325 \, \text{Pa}$, there is a mixture solution of metals A and B, where the amount of substance for metal A is $n_{\mathrm{A}} = 5000 \, \text{mol}$, and for metal B is $n_{\mathrm{B}} = 40 \, \text{mol}$. It is known that ... | $$
0. 0 1 0 \ 1 5
$$ | general_qa | 522 |
The following is a multiple choice question (with answers).
===Question
GPS field data is converted to GIS data using which of the following software?
===Choices
ArcSurveyor
ArcMap
GeoDirector
GeoMapper
MapConverter
ArcScene
ArcCatalog
EarthPlot
MapDesk
ArcGlobe | ArcMap | general_qa | 63 |
The following is a multiple choice question (with answers).
===Question
What year was the municipality of El Cocuy, Boyacá, Colombia, founded?
===Choices
1544
1542
1540
1541
1543
1545
1547
1546
1538
1539 | 1541 | general_qa | 84 |
The following is a multiple choice question (with answers).
===Question
In which month and year did Sir Frederick Lugard organize the West African Frontier Force?
===Choices
October 1897
April 1897
May 1897
June 1897
December 1897
August 1897
November 1897
July 1897
September 1897
March 1897 | August 1897 | general_qa | 103 |
The following is a multiple choice question (with answers).
===Question
A flat plate is maintained at a constant temperature of 225°F (107.6°C). Air at 1 atm. and a temperature, T_\infty, of 140°F (60.3°C) moves across this plate at a velocity, U_\infty, of 2.5 ft/sec (0.762 m/sec). Calculate the local heat transfer co... | h_x= 1.77 W/m^2-sec, h= 3.54 W/m^2-sec, Q = 45.7 W | general_qa | 532 |
The following is a multiple choice question (with answers).
===Question
The paper copying process must go through four main stages: dehydration, pressing, drying, and ______ before rolling up.
===Choices
enhancing
cooling
compressing
bonding
heating
calendering
smoothing
packaging
soaking
trimming | calendering | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the period length of the sequence of Fibonacci numbers taken modulo n, also known as the Pisano period. Given the input x_list (a series of values): [58, 59, 60, 61, 62, 63, 64, 65, 66, 67], det... | [42, 58, 120, 60, 30, 48, 96, 140, 120, 136] | general_qa | 550 |
The following is a multiple choice question (with answers).
===Question
There is a continuously operating rotary vacuum filter, whose production capacity is expressed in (m³ filtrate/h). The amount of filtrate obtained per rotation is expressed as V(m³). If the resistance of the filtering medium can be ignored, which o... | V decreases, Q increases | general_qa | 148 |
The following is a multiple choice question (with answers).
===Question
A 45-year-old woman is admitted to the hospital with neck pain. An MRI examination reveals a herniated disk in the cervical region. Physical examination reveals weakness in wrist extension and paranesthesia on the back of her arm and forearm. Which... | C7 | general_qa | 90 |
The following is a multiple choice question (with answers).
===Question
In digital electronic circuit, when MOSFET is turned on, which region does it worked in?
===Choices
insulative region
reflective region
receptive region
conductive region
inductive region
transitive region
absorptive region
resistive region
produc... | resistive region | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
If a business changes its plans and increases the total amount spent on acquiring new machinery and building new factories, which of the following statements is correct?
===Choices
gnp will decrease, but consumption spending will be unaffected
gnp... | gnp will rise, but consumption spending will be unaffected | general_qa | 152 |
The following is a multiple choice question (with answers).
===Question
Let the random variable \( X \sim N(0, 1) \), and let \( Y = 2X^2 + 1 \). Find the density function \( f_Y(y) \) of \( Y \) ( ).
===Choices
\( f_Y(y) = \left\{ \begin{array}{ll} \frac{1}{2\sqrt{\pi (y-1)}} e^{-\frac{y-1}{2}}, & y > 1 \\ 0, & \text... | \( f_Y(y) = \left\{ \begin{array}{ll} \frac{1}{2\sqrt{\pi (y-1)}} e^{-\frac{y-1}{4}}, & y > 1 \\ 0, & \text{otherwise} \end{array} \right. \) | general_qa | 752 |
The following is a multiple choice question (with answers).
===Question
Molar heat capacity of ${CD}_{2}O$ (deuterated form of formaldehyde) vapour at constant pressure is vapour $14cal/K-mol$. The entropy change associated with the cooling of $3.2g$ of ${CD}_{2}O$ vapour from $1000K$ to $900K$ at constant pressure is ... | $$+0.14cal/K$$ | general_qa | 220 |
The following is a multiple choice question (with answers).
===Question
Which essay collection by Zhang Ailing reflects the influence of British essays?
===Choices
One's Own Writing
Rumors
The Contrast
On the Art of Poetry
Look Around
Nightmare of the Red Chamber | Rumors | general_qa | 58 |
The following is a multiple choice question (with answers).
===Question
The driver of a police car hears an echo of the car's siren from a wall toward which the car is moving with a speed of 3.5 m/s. If the speed of sound is 350 m/s and the frequency of the siren is 600 Hz, the driver hears the echo at a frequency near... | 612 Hz | general_qa | 142 |
The following is a multiple choice question (with answers).
===Question
For a matrix \(A_{n \times n}\), the necessary and sufficient condition for \(r(A) = r < n\) is
===Choices
Any \((r + 1)\) column vectors of \(A\) are linearly dependent, but there exists at least one set of \(r\) column vectors that are not linea... | Any \((r + 1)\) column vectors of \(A\) are linearly dependent, while there exist \(r\) column vectors that are linearly independent | general_qa | 356 |
The following is a multiple choice question (with answers).
===Question
The inverse Laplace transform of function $\mathrm{F ( s )}=1 / [ \mathrm{s} ( 1+\mathrm{e}^{-s})]$ is ( ).
===Choices
$\begin{array} {l} {{{\sum_{n=0}^{+\infty} \left[ u ( t-n )-u ( t-n-1 ) \right]}}} \\ \end{array}$
$\begin{array} {l} {{{\sum_{n... | $\begin{array} {l} {{{\sum_{n=0}^{+\infty} \left[u(t-2n)-u(t-2n-1)\right]}}}\end{array}$ | general_qa | 511 |
The following is a multiple choice question (with answers).
===Question
The condition for a polymer to undergo forced elastomeric deformation is ().
===Choices
Strain energy equals stored potential energy.
Deformation speed exceeds polymer viscosity.
Cross-link density surpasses glass transition.
Shear stress surpasse... | Fracture stress is greater than yield stress. | general_qa | 112 |
The following is a multiple choice question (with answers).
===Question
At 298K, a NaCl aqueous solution with a concentration of $5.00 \times 10^{-3} \ mol \cdot kg^{-1}$ is diluted with water to half of its original concentration. The ratio of the mean ionic activity coefficients in the final state to the initial stat... | 1.02 | general_qa | 150 |
The following is a multiple choice question (with answers).
===Question
In which year was the island of New South Greenland, considered to be non-existent, first recorded?
===Choices
1828
1823
1824
1822
1821
1820
1829
1826
1825
1827 | 1823 | general_qa | 86 |
The following is a multiple choice question (with answers).
===Question
A coaxial line with inner and outer radii of $a$ and $b$, respectively, is filled with an ideal dielectric with a relative permittivity of 2.25 between the inner and outer conductors. Given $a = 5 \mathrm{~ mm}$, determine the range of operating fr... | $$
0 < f < f_{m a x}=2. 6 9 \mathrm{~ G H z}
$$ | general_qa | 381 |
The following is a multiple choice question (with answers).
===Question
What are the two parts of the perianth that serve roles such as attracting insects for pollination and protection?
===Choices
Ovule, Pollen
Stigma, Receptacle
Corolla, Calyx
Petal, Sepal
Leaf, Bud
Root, Shoot
Anther, Filament
Pistil, Ovary
Filamen... | Corolla, Calyx | general_qa | 97 |
The following is a multiple choice question (with answers).
===Question
What kind of singularity is the point $\infty$ for the function $f(z) = \frac{z-5}{2z+3}$? Find the residue of the function at the point $\infty$.
===Choices
Removable pole, $\frac{8 5}{4}$
Essential singularity, $\frac{7 1}{2}$
Jump discontinuity... | Removable singularity, ${\frac{1 3} {4}}$ | general_qa | 210 |
The following is a multiple choice question (with answers).
===Question
The maturity of cotton fiber refers to the thickening degree of the fiber (). () The thicker, the better the ripeness.
===Choices
Microfiber, cell wall
Between cells, cell wall
Cytoplasm, cytoplasm
Cell margin, cell wall
Cell wall, microfiber
Cell... | Cell wall, cell wall | general_qa | 104 |
The following is a multiple choice question (with answers).
===Question
According to the different indices of blast action, blasting can be categorized and the following options are correct: ( ).
===Choices
When n < 0.55, for the light blasting; when 0.55 ≤ n < 0.80, for the mitigation of the impact blast.
When n < 0.... | When n < 0.75, for the loose blasting; when 0.75 ≤ n < 1, for the weakening of the throwing blast. | general_qa | 406 |
The following is a multiple choice question (with answers).
===Question
What is a prevalent architectural style in Portugal that results from the combination of local building traditions and European what style?
===Choices
Gothic
Neobaroque
Renaissance
Neoclassical
Renaissance Baroque Blend
Baroque
Renaissance Baroque... | Baroque | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
In which of the following diseases may the sucrose hemolysis test be falsely positive?
===Choices
thalassemia
melanoma
hemophilia
leukaemia
pancreatitis
diabetes
anaemia
tuberculosis
hepatitis
lymphoma | leukaemia | general_qa | 72 |
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