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
In what year was the Compact of Free Association approved by plebiscites in the Marshall Islands and Micronesia, and by the U.S. Congress?
===Choices
1989
1984
1982
1986
1987
1983
1988
1985
1980
1981 | 1985 | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
Take two numbers randomly from $(0,1)$, so what is the probability that the sum of the two numbers is less than $\frac{6} {5}$? What is the probability that the product of the other two numbers is less than $\frac{1} {4}$?
===Choices
$$0.68,\ \fra... | $$0.68,\ \frac{1} {4}+\frac{1} {2} \operatorname{l n} 2
$$ | general_qa | 405 |
The following is a multiple choice question (with answers).
===Question
When households save more income, the options are ( ).
===Choices
short-term total spending and real GDP will increase, and long-term economic growth rate will remain unchanged
short-term total spending and real GDP will decrease, and long-term ec... | short-term total spending and real GDP will decrease, and long-term economic growth rate will increase | general_qa | 169 |
The following is a multiple choice question (with answers).
===Question
Which city is described by the phrase "The river runs through the capital, resembling the sky and the Han Dynasty"?
===Choices
Anyang in Shang Dynasty
Beijing in Ming Dynasty
Hangzhou in Song Dynasty
Xianyang in Qin
Chengdu in Shu Han
Kaifeng in S... | Xianyang in Qin | general_qa | 107 |
The following is a multiple choice question (with answers).
===Question
When dealing with China's ancient cultural heritage and foreign cultures, the principle of 'using the past for the present' and 'using the foreign for China' should be adhered to. The philosophical basis for this attitude towards Chinese and foreig... | the principle of dialectical negation | general_qa | 165 |
The following is a multiple choice question (with answers).
===Question
The Sichuan opera actor who won the Plum Blossom Award for Chinese Theatre is ______.
===Choices
Liu Xiaoli
Zhou Mingjie
Li Deyun
Zhang Huijin
Wang Yuyan
Xu Minzhi
Shen Tiemei
Fang Weihao
Chen Linghong
Ye Guanghua | Shen Tiemei | general_qa | 90 |
The following is a multiple choice question (with answers).
===Question
In which of Plato's works does the concept of 'rational hatred' first appear?
===Choices
Timaeus
Meno
Laws
Apology
Symposium
Philebus
Phaedo
Phaedrus
Gorgias
Republic | Phaedo | general_qa | 68 |
The following is a multiple choice question (with answers).
===Question
Under calm and sunny conditions, what is the trend in the water potential of plant leaves in the morning, noon, and evening?
===Choices
Low → Low → High
Constant → Low → High
Low → Constant → High
High → High → Low
High → Low → High
Low → High → L... | Low → High → Low | general_qa | 102 |
The following is a multiple choice question (with answers).
===Question
Given that the starting point of the straight-line segment on the $e-\operatorname{log} p$ curve of a standard consolidation test for silt in a certain area is between 50 and 100 kPa. In this area, a silt sample has a measured compression coefficie... | 0.55 | general_qa | 184 |
The following is a multiple choice question (with answers).
===Question
A plane with a mass of $10^{4} \, \mathrm{kg}$ lands on a horizontal surface using skis. Under the pilot's control, the plane lands without vertical velocity or vertical acceleration. The drag force is proportional to the speed, and when the speed ... | $$
S=9 0 9. 3 \ \operatorname{m}, T=3 8. 7 \ \operatorname{s.}
$$ | general_qa | 524 |
The following is a multiple choice question (with answers).
===Question
The conversion of data structures from an external view to sub-schemas is implemented by ( ). The mapping between schemas and sub-schemas is implemented by ( ). The mapping between the storage schema and the physical organization of data is impleme... | Application Program; DBMS; Access method of the operating system | general_qa | 160 |
The following is a multiple choice question (with answers).
===Question
Feces with a foul odor often indicate insufficiency in which function?
===Choices
Digestion, liver
Excretion, intestines
Excretion, kidneys
Regulation, liver
Synthesis, spleen
Regulation, gallbladder
Malabsorption, pancreas
Synthesis, stomach
Abso... | Malabsorption, pancreas | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
What is the surface of woody stems such as elderberry?
===Choices
Hollow
With uniform texture
Square-shaped
Completely solid inside
Triangle-shaped
Naturally bright colored
Extremely rough surfaced
Smooth and undivided
With obvious pores
Covered i... | With obvious pores | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
Shipbuilding industry belongs to _____.
===Choices
Intermediate product industry
Final demand basic industry
Intermediate product basic industry
Final demand intermediate industry
Intermediate demand basic industry
Ultimate demand auxiliary indust... | Final demand basic industry | general_qa | 75 |
The following is a multiple choice question (with answers).
===Question
A particle initially at rest is subjected to two forces. One is constant, the other is a retarding force proportion at to the particle velocity. In the subsequent motion of the particle.
===Choices
The velocity will increase from zero to a maximum... | The acceleration will decrease from its initial value to a zero. | general_qa | 175 |
The following is a multiple choice question (with answers).
===Question
The fundamental method Marx used in studying political economy is ( )
===Choices
Materialist Dialectics
Mathematical Method
Dialectical Historical Materialism
Dialectical Materialism and Historical Dialectics
Historical Materialism
Empirical Analy... | Materialist Dialectics | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
A dynamic microphone diaphragm has an area of 5 cm$^{2}$. When this diaphragm is replaced by a steel block of the same shape, in a free sound field generated by a 500 Hz sound source, the sound pressure produced on the surface is $\mathrm{1 / \mu b... | 0.1Pa | general_qa | 183 |
The following is a multiple choice question (with answers).
===Question
When sodium nitroprusside and sodium hydroxide reagents are added to a volatile oil solution in pyridine, a red color appears and gradually disappears, indicating the presence of ( ).
===Choices
triterpenoids
aromatic amines
α,β-unsaturated lacton... | α,β-unsaturated lactones | general_qa | 107 |
The following is a multiple choice question (with answers).
===Question
() is a series of activities implemented in order to obtain high-quality software, including problem definition, requirements development, software design, software construction, software testing, etc.
===Choices
Software Architecture Design
Softw... | Software Process | general_qa | 84 |
The following is a multiple choice question (with answers).
===Question
Given the controlled system (sum(A, b, c^T)), the coefficient matrices are ( A=left[ begin{matrix} 1 & 0 & 0 3 & -1 &1 0 & 2 & 0 end{matrix} right] , b=left[ begin{matrix} 2 1 1 end{matrix} right], c^T=left[ begin{matrix} 0 & 0 &1 end{matrix} right... | (M=[-20 -25 -12]^T) | general_qa | 300 |
The following is a multiple choice question (with answers).
===Question
In a countercurrent packing absorption tower, where will the gas and liquid phases reach equilibrium when the absorption factor $A=1$ and the packing height is infinite?
===Choices
Bottom of the tower
Just outside the Tower
Middle of the Tower
Sid... | Bottom of the tower | general_qa | 101 |
The following is a multiple choice question (with answers).
===Question
Set
$$
\mathrm{X_{1}, ~ X_{2}, ~..., ~ X_{n} ~ ( n \geq2 ) ~}
$$
be a simple random sample from a population
$$
\mathrm{N} \ ( \mu, \ \sigma^{2} ) \ \ ( \sigma> 0 )
$$
Set
$$
\overline{{{{X}}}}=\frac{1} {n} \sum_{i=1}^{n} X_{i}
$$
$$
S={\sqrt{{\fra... | $$
\mathrm{} \ \ {\frac{{\sqrt{n}} \left( {\bar{X}}-\mu\right)} {S}}-t \left( n {-} 1 \right)
$$ | general_qa | 660 |
The following is a multiple choice question (with answers).
===Question
When less than () of lead is added to the tea infusion, it results in a light flavor with a slightly sour taste.
===Choices
0.05mgH
0.02mgL
0.10mgC
0.07mgE
0.01mgM
0.06mgF
0.09mgG
0.03mgK
0.04mgI
0.08mgN | 0.04mgI | general_qa | 111 |
The following is a multiple choice question (with answers).
===Question
In Chinese personnel intelligence records, the aliases and nicknames that need to be registered include:
I. Assumed names
II. Stage names
III. Online usernames
IV. Nicknames
V. Pet names
===Choices
I,II,V
I,II,III,V
II,IV,V
III,IV,V
I,II,III
II,II... | I,II,III,V | general_qa | 121 |
The following is a multiple choice question (with answers).
===Question
The known liquid-phase reactions are as follows:
$$
\begin{array} {c c}
{{{\mathrm{A + B} \stackrel{1}{\longrightarrow} {P},}}} & {{{r_{\mathrm{P}} = k_{1} c_{\mathrm{A}} c_{\mathrm{B}}}}} \\
{{{2 \mathrm{A} \stackrel{2}{\longrightarrow} {S},}}} & ... | 0.61 | general_qa | 313 |
The following is a multiple choice question (with answers).
===Question
A married man lives together with the wife of a retired soldier under the guise of being a married couple, and they have a child together. In China, which of the following crimes should he be convicted of?
===Choices
Crime of unlawful possession o... | Bigamy | general_qa | 126 |
The following is a multiple choice question (with answers).
===Question
Two point charges (Q each) are placed at (0, y) and (0, -y). A point charge q of the same polarity can move along the x-axis. Then :
===Choices
for any position of q other than origin, the force is directed along the x-axis
for any position of q o... | for any position of q other than origin, the force is directed away from origin | general_qa | 216 |
The following is a multiple choice question (with answers).
===Question
What was the first Ministry of Education in the world's modern and contemporary political history?
===Choices
The Kingdom of Poland
The Kingdom of Saxony
The Kingdom of Prussia and Saxony
The Kingdom of Bohemia and Moravia
The Kingdom of Bohemia
T... | The Kingdom of Poland and Lithuania | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
Which of the following note sequences has the duration equal to an eighth note?
===Choices
L:1/16
M:none
K:C
(3A/A/A/ z z2 z4 z8 |] %1
L:1/16
M:none
K:C
(7:4:7AAAAAAA z4 z8 |] %1
L:1/16
M:none
K:C
AAAA z4 z8 |] %1
L:1/16
M:none
K:C
(6:4:6B/B/B/B/B... | L:1/16
M:none
K:C
(6:4:6B/B/B/B/B/B/ z2 z4 z8 |] %1 | general_qa | 152 |
The following is a multiple choice question (with answers).
===Question
If use substitution$\mathrm{y}=\mathrm{z}^{\mathrm{m}}$differential equation can be $\mathrm{y^{\prime}=a x^{a}+b y^{\beta}}$ $$ ( \alpha\beta\neq0)$$into first-order homogeneous equation $\mathrm{d z} / \mathrm{d x}=\mathrm{f} \ \ ( \mathrm{z} / \... | $$1 / \beta-1 / \alpha=1$$ | general_qa | 265 |
The following is a multiple choice question (with answers).
===Question
Population resources are defined as ().
===Choices
newborn population
population of working age
student population
total population
employed population
immigrant population
retired population
urban population
rural population
the population seekin... | population of working age | general_qa | 61 |
The following is a multiple choice question (with answers).
===Question
Calculate the integral
$$
\int_{0}^{+\infty} \frac{x \sin(m x)}{x^{4} + a^{4}} \, \mathrm{d}x \quad \text{where} \begin{cases} m > 0 \\ a > 0 \end{cases}
$$
===Choices
$$
\frac{\pi} {2 a^{2}} \mathrm{e}^{\frac{ma} {\sqrt{2}}} \cdot\operatorname{c ... | $$
\frac{\pi} {2 a^{2}} \mathrm{e}^{\frac{ma} {\sqrt{2}}} \cdot\operatorname{s i n} \frac{m a} {\sqrt{2}}
$$ | general_qa | 598 |
The following is a multiple choice question (with answers).
===Question
To which family does Sp distractedcope podasp dispatchpe belong?
===Choices
Daphnidae
Daphniidae
Daphnididae
Daphnidaeidaea
Daphnidaeidaeae
Daphnidaeidaeidae
Daphnidaea
Daphnidaeidae
Daphnidaeae
Daphnidaeaeae | Daphniidae | general_qa | 103 |
The following is a multiple choice question (with answers).
===Question
Two concave mirrors having focal lengths $f_1, \ f_2$ are kept facing each other separated by a distance d such that $d= f_1+ f_2$ a point object is placed at a point A between them on their principal axis as shown then we get the image
===Choices... | At same point A | general_qa | 150 |
The following is a multiple choice question (with answers).
===Question
What is the total sum of active temperatures during a certain stage of reproduction or throughout the entire reproductive period called?
===Choices
Total Reproductive Sum
Reproductive Temperature Sum
Total Reproductive Heat
Entire Thermal Calculat... | Active Accumulated Temperature | general_qa | 91 |
The following is a multiple choice question (with answers).
===Question
Which of the following belongs to surface drainage facilities for road subgrade?
===Choices
water culvert
surface well
filtration trench
seepage well
watering pipe
drainage ditch | drainage ditch | general_qa | 55 |
The following is a multiple choice question (with answers).
===Question
Which expression is equivalent to $\left(\frac{ 1 }{ \sin(x) }+\frac{ 1 }{ \tan(x) }\right)^2$?
===Choices
T=\frac{1+\cos(x)}{1-\cos(x)}
T=\frac{1-\cos(x)}{\sin^2(x)}
T=\frac{1-\cos(x)}{1+\cos(x)}
T=\frac{1+\cos(x)}{\sin^2(x)} | T=\frac{1+\cos(x)}{1-\cos(x)} | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
Suppose you lived on Mars and watched its moons. If Phobos and Deimos were next to each other one night, what would you see the next night (one Martian day later)? Describe the apparent motions of the two moons. (Both Phobos and Deimos orbit progra... | Phobos is moving westward. | general_qa | 159 |
The following is a multiple choice question (with answers).
===Question
The target of empirical ethical thinking is____.
===Choices
Moral hypocrisy and spiritual slavery
Ethical egoism
Divine command theory
Deontological ethics
Individualism
utilitarianism
Ethical relativism
Virtue ethics
Consequentialism
Non-empirici... | Moral hypocrisy and spiritual slavery | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
The counterclockwise movement of the isocost curve around its intersection with the vertical axis indicates ().
===Choices
The price of production factor Y has fallen
The overall budget for production factors has decreased
The isocost curve has be... | The price of production factor X has fallen | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
$\frac{e}{m}$ is the charge-to-mass ratio of an electron. $L$, $S$, and $J$ represent the total orbital angular momentum, total spin angular momentum, and total angular momentum of the electron, respectively. What is the total magnetic moment of th... | $$
- \frac{e} {2 m} ( J+S ) \,
$$ | general_qa | 270 |
The following is a multiple choice question (with answers).
===Question
Let two sets of `n`-dimensional vectors `alpha _1,alpha _2, cdots ,alpha _m` and `beta _1,beta _2, cdots ,beta _m` both have rank `r`, then ( )
===Choices
The matrices formed by the two sets of vectors as rows are not equivalent.
The matrices form... | The matrices formed by the two sets of vectors as columns are equivalent. | general_qa | 228 |
The following is a multiple choice question (with answers).
===Question
Water at a temperature of 20°C flows through a circular pipe with an inner diameter of 50 mm. The pressure drop measured per meter of pipe length is 1500 N/m. Under these conditions, the flow of the fluid is turbulent, and calculate:
The flow veloc... | $$
= 6. 0 \times1 0^{-6} \ \mathrm{m^{2} / s}
$$ | general_qa | 397 |
The following is a multiple choice question (with answers).
===Question
Among the following trade methods, the one in which the raw materials are shipped in and the finished products are shipped out, but the ownership is not actually transferred is ( ).
===Choices
Direct export
Toll manufacturing
Processing with impor... | Processing with supplied materials | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
The average weight gain of a pregnant woman throughout her pregnancy is generally controlled at ( ).
===Choices
18kg
11kg
10kg
25kg
16kg
20kg
14kg
12kg
13kg
15kg | 12kg | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
At 25°C, in a stagnant solution, the cathodic reaction $\mathrm{Cu^{2+} + 2e \to Cu}$ is controlled by the diffusion step. The diffusion coefficient of $\mathrm{Cu^{2+}}$ ions in this solution is $1 \times 10^{-5} \mathrm{cm}^{2}/\mathrm{s}$, and t... | $$
=-9 m V
$$ | general_qa | 262 |
The following is a multiple choice question (with answers).
===Question
At ${!00}^{o}C$, the following equilibrium is established.
${H}_{2}(g)+S(s)\rightleftharpoons {H}_{2}S(g);{K}_{c}=0.08$. If $0.3$ mol hydrogen and $2$ mol sulphur are heated to ${100}^{o}C$ in a $2L$ vessel, what will be the amount of $S(s)$ at eq... | $$0.276mol$$ | general_qa | 202 |
The following is a multiple choice question (with answers).
===Question
A cylinder of mass m and radius R is spined to a clockwise angular velocity ${ \omega }_{ 0 }$. and then gently placed on an inclined plane for which coefficient of friction $\mu = tan \theta$, $\theta$ is the angle of inclined plane with horizont... | $${ \omega }_{ 0 }R/ 2gsin \theta$$ | general_qa | 274 |
The following is a multiple choice question (with answers).
===Question
A TCP entity sends 6 segments across the Internet. The measured round-trip times (RTTM) for the 6 segments are 68ms, 42ms, 65ms, 80ms, 38ms, and 75ms, respectively. Assume that the smooth averaged RTT (RTTs) and Deviation (RTTD) was respectively 70... | 114.28 | general_qa | 266 |
The following is a multiple choice question (with answers).
===Question
Production of sodium phosphate dodecahydrate $({Na_{2}PO_{4}} \cdot12{H}_{2}O)$ crystals using a cooling crystallizer. The feed solution is a 25% (mass fraction of solute, same below) sodium phosphate aqueous solution, and the concentration of the ... | 8697.3kg/h | general_qa | 225 |
The following is a multiple choice question (with answers).
===Question
A moving proton collides with a stationary proton, resulting in the reaction $\mathrm{p+p \to p+p+\pi^{0}}$. What is the threshold energy for the reaction ?
===Choices
$$3 0 0 ( \mathrm{M e V} )
$$
$$2 8 0 ( \mathrm{M e V} )
$$
$$3 5 0 ( \mathrm{M... | $$2 8 0 ( \mathrm{M e V} )
$$ | general_qa | 224 |
The following is a multiple choice question (with answers).
===Question
In which country was Joanna the Mad betrothed?
===Choices
Spain.
Flanders.
Brabant.
Dutch Republic.
Netherlands.
Belgium.
Habsburg Empire.
Low Countries.
Burgundy.
United Provinces. | Low Countries. | general_qa | 62 |
The following is a multiple choice question (with answers).
===Question
An ideal gaseous sample at initial state $({P}_{0},{V}_{0},{T}_{0})$ is allowed to expand to volume $2{V}_{0}$ using two different processes. For the first process, the equation of process is $2P{V}^{2}={K}_{1}$ and for the second process, the equa... | The magnitude of work done in the second process will be greater than that in the first process | general_qa | 286 |
The following is a multiple choice question (with answers).
===Question
The electron is a hydrogen atom makes a transition from $n_1$ to $n_2$ where $n_1$ and $n_2$ are the principal quantum numbers of the two states. Assume Bohr's model to be valid. The time period of the electron in the initial state is eight times... | $$n_1=6, \: n_2=3$$ | general_qa | 244 |
The following is a multiple choice question (with answers).
===Question
In Arabidopsis thaliana, the gene locus that determines pod length (L for long pods, l for short pods) and the gene locus that determines fruit hairiness (H for hairy, h for smooth) are located on the same chromosome, 16 map units (cM) apart. The F... | 0.182 | general_qa | 180 |
The following is a multiple choice question (with answers).
===Question
Find the total friction power, total friction imep, and
pumping imep for a four-stroke cycle SI engine operating at 1800 rev/min with a measured brake torque of 32 N m, a gross imep of 933 kPa, and a net imep of 922 kPa. $V_{d}=0. 4 9 6$ liter.
==... | 0.91 kW, 123 kPa, 11 kPa | general_qa | 293 |
The following is a multiple choice question (with answers).
===Question
A bacterium fixes carbon autotrophically and produces biomass with a $\delta^{13} \mathrm{C}$
value of -31.6 per mil VPDB starting with atmospheric CO2 having a delta value of -7.8 per mil VPDB.
What are the alpha and epsilon values for the sum of ... | 0.9762 | general_qa | 156 |
The following is a multiple choice question (with answers).
===Question
What are the shapes of the curves of vibration spectra known as?
===Choices
Harmonic shapes
Resonance forms
Vibration graphs
Response spectra
Phase patterns
Amplitude curves
Response shapes
Spectral shapes
Frequency lines | Spectral shapes | general_qa | 62 |
The following is a multiple choice question (with answers).
===Question
An iron bar whose cross sectional area is $4 cm^{2}$ is heated from $0^{\circ}C$ and $100^{\circ}C$. The force required to prevent the expansion of the rod is :(Y of Iron = $2 \times 10^{12} dyne / cm^{2}$, $lpha$ of Iron = $12 \times 10^{6} /^{\... | $$192\times 10^{3} N$$ | general_qa | 258 |
The following is a multiple choice question (with answers).
===Question
In Windows, the dialog box that allows multiple selections to be made simultaneously is ().
===Choices
Scroll Button
Dropdown list
Text Box
List Box
Group Box
Checkbox
Button Group
Label
Command Button
Radio button | Checkbox | general_qa | 61 |
The following is a multiple choice question (with answers).
===Question
Suppose that we have a series: $1-\frac{ 1 }{ 2 }+\frac{ 1 }{ 3 }-\cdots+(-1)^{n+1} \cdot \frac{ 1 }{ n }+\cdots$ and its sum is equal to $\ln(2)$. Find the sum of the series: $1-\frac{ 1 }{ 2 }-\frac{ 1 }{ 4 }+\frac{ 1 }{ 3 }-\frac{ 1 }{ 6 }-\frac... | S=\frac{1}{2}\cdot\ln(2) | general_qa | 322 |
The following is a multiple choice question (with answers).
===Question
Intravenous PA is indicated in ischemic stroke within how many hours of onset of disease process
===Choices
5 hours
6 hours
1 hour
4 hours
8 hours
9 hours
12 hours
3 hours
2 hours
7 hours | 3 hours | general_qa | 67 |
The following is a multiple choice question (with answers).
===Question
A boy presents with complaints of hypoaesthesia and wasting of thenar eminence. The nerve most likely to damaged in this patient?
===Choices
Median nerve
Median nerve (C6-C8)
Radial nerve (C6-C8)
Musculocutaneous nerve
Axillary nerve
Ulnar nerve (... | Median nerve | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
The first journalism - related book written by a Chinese himself/herself is ()
===Choices
"Applied Journalism" by Ren Baitao
"Press and Politics" by Chen Xueping
"Elements of Reporting" by Wang Taomin
"Principles of News Writing" by Zhang Jiluan
"... | "An Outline of Journalism" by Xu Baohuang | general_qa | 147 |
The following is a multiple choice question (with answers).
===Question
The heat capacity of uranium metal is 0.727 cal deg^-1 mole^-1 at 20° K. Calculate the standard absolute entropy of this substance in cal°K^-1 mole at 20° K.
===Choices
0.4846 cal mol^-1K^-1
0.2423 cal mol^-1K^-1
0.060575 cal mol^-1K^-1
0.908 cal ... | 0.2423 cal mol^-1K^-1 | general_qa | 205 |
The following is a multiple choice question (with answers).
===Question
Which of the following clinical manifestations of epidemic meningitis is incorrect?
===Choices
Bloody cerebrospinal fluid
Mucous membrane inflammation
Bruises and contusions on the skin
Sudden onset of high fever
Cerebrospinal fluid is cloudy or p... | Bloody cerebrospinal fluid | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
Two components operate in parallel in a device, so the device fails when and only when both components fail. The lifetimes, $X_1$ and $X_2$, of the respective components are independent and identically distributed with an exponential distribution w... | $5$ | general_qa | 171 |
The following is a multiple choice question (with answers).
===Question
Electrostatic potential V has been measured everywhere outside a spherical body of radius R made of unknown material. It was found that the potential is spherically symmetric, i.e. depends only on the distance r from the centre of the sphere as giv... | It may be uniform or nonuniform without any spherical symmetry. | general_qa | 214 |
The following is a multiple choice question (with answers).
===Question
$Cu^{+}$ is not stable and undergoes disproportionation. $E^{o}$ for $Cu^{+}$ disproportionation is : $(E^{o}_{Cu^{2+}/Cu^{+}}=+0.153V,\ E{^{o}}_{Cu^{+}/Cu} =0.53V)$
===Choices
+0.337 V
+0.683 V
-0.367 V
+0.345 V
+0.3415 V
+0.383 V
+0.377 V
+0.331... | +0.3415 V | general_qa | 172 |
The following is a multiple choice question (with answers).
===Question
Indium atoms are to be diffised into a silicon wafer using both predeposition and drive-in heat treatments; the background concentration of In in this silicon material is known to be $2 \times1 0^{2 0} atoms/m^{3}$. The drive-in diffusion treatment... | $$
1. 5 3 \, \mathbf{h}
$$ | general_qa | 406 |
The following is a multiple choice question (with answers).
===Question
Medical Termination of Pregnancy Act 1971, was amended in 2002 to include
===Choices
'Mentally healthy' in place of lunatic
'Emotionally unstable' in place of lunatic
Risk to mother's life as an indication
'Mentally ill' in place of lunatic
'Menta... | 'Mentally ill' in place of lunatic | general_qa | 139 |
The following is a multiple choice question (with answers).
===Question
For a white dwarf with a solar mass and a radius of $2 \times 10^{9} \, \mathrm{cm}$, where atoms are completely ionized, calculate the electron Fermi energy in units of $\mathrm{eV}$.
===Choices
$$
\approx4 \times1 0^{4} \ ( \mathrm{e V} )
$$
$$
... | $$
\approx4 \times1 0^{4} \ ( \mathrm{e V} )
$$ | general_qa | 309 |
The following is a multiple choice question (with answers).
===Question
Which following are inducers of the lac operon in E.coli?
===Choices
Lactose
Sorbitol
Fructose
Xylose
Mannose
Sucrose
Starch
Glucose
Galactose
Maltose | Galactose | general_qa | 67 |
The following is a multiple choice question (with answers).
===Question
The figure shows two point sources which emit light of wavelength $\lambda$ in phase with each other and are at a distance $d = 5.5\ \lambda$ apart along a line which is perpendicular to a large screen at a distance $L$ from the center of the sourc... | Point $y = 0$ corresponds to dark fringe | general_qa | 195 |
The following is a multiple choice question (with answers).
===Question
Acid rain is an environmental concern all of the world. In assessing the acidity of rainfall, it is important to have an idea of the acidity of natural rainwater. Assuming that natural rain water (that is, rainwater uncontaminated with nitric acid ... | 6.64 | general_qa | 205 |
The following is a multiple choice question (with answers).
===Question
Which character book did the Eastern Han person Xu Shen innovate with the radical method?
===Choices
Shuowen Jiezhi
Shuowen Jiezao
Shuowen Jiejiu
Shuowen Jiezhuo
Shuowen Jieziu
Shuowen Jiezong
Shuowen Jieji
Shuowen Jiezhu
Shuowen Jiezian
Shuowen J... | Shuowen Jiezi | general_qa | 115 |
The following is a multiple choice question (with answers).
===Question
Along the X-axis, three charges$\dfrac {q}{2},-q$ and $\dfrac {q}{2}$ are placed at x = 0, x = a and x = 2a respectively. The resultant electric potential at x = a+r (if, a << r) is :( $\epsilon _{0} $ is the permittivity of free space)
===Choic... | $$\dfrac{qa^{2}}{4\pi \epsilon _{0}r^{3}}$$ | general_qa | 307 |
The following is a multiple choice question (with answers).
===Question
In freshwater, the fish that uses its intestines for auxiliary respiration is ().
===Choices
Zephyr Fish
Goldfish
Mollies
Guppy
Ricefield eel
Loach
Paradise Fish
Eel
Betta fish
Swordtails | Loach | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
Which of the following ferns has an aerial stem with a distinct division between nodes and internodes?
===Choices
Cibotium barometz
Selaginella
Floatingfern
Quillwort
Clubmoss
Mangqi
Scouring Rush
Maidenhair Fern
Phoenix Tail Fern
Staghorn Fern | Scouring Rush | general_qa | 84 |
The following is a multiple choice question (with answers).
===Question
Assuming a certain transistor has a reverse saturation current $I_{\mathrm{CBO}} = 1 \, \mu A$ at 20°C, and $\beta = 30$. Estimate the values of $I_{\mathrm{CBO}}$ and leakage current $I_{\mathrm{CEO}}$ at 50°C. Given that for every 10°C increase i... | 8μA; 0.32mA | general_qa | 249 |
The following is a multiple choice question (with answers).
===Question
Three identical blocks each of mass $m\ =\ 1\ kg$ and volume $3\ \times \ { 10 }^{ -4 }\ { m }^{ 3 }$ are suspended by massless string from a support as shown. Underneath are three identical containers containing the same amount of water that are p... | The reading of the scale in (c) is $24\ N$ | general_qa | 346 |
The following is a multiple choice question (with answers).
===Question
Two blocks of mass $3kg$ and $6kg$ respectively are placed smooth horizontal surface. They are connected by a light spring of force constant $K=100N/m$. Initially the spring is unstretched. The indicated velocities are imparted to the blocks. The m... | $$30cm$$ | general_qa | 141 |
The following is a multiple choice question (with answers).
===Question
What date, month, and year was TCG Yavuz (F240) commissioned?
===Choices
17 July 1988
17 July 1982
17 July 1983
17 July 1984
17 July 1989
17 July 1987
17 July 1985
17 July 1981
17 July 1986
17 July 1980 | 17 July 1987 | general_qa | 127 |
The following is a multiple choice question (with answers).
===Question
What is the role of adding carbon in the process of making magnesium chloride from magnesium oxide?
===Choices
Increase the magnesium retention
Decrease the overall cost
Stabilize the chemical structure
Reduce side reactions
Increase the purity of... | Reduce the oxygen partial pressure | general_qa | 92 |
The following is a multiple choice question (with answers).
===Question
The most valuable distinction between a moderate coma and a deep coma is ().
===Choices
Unable to respond to pain
Only deep reflexes disappear
Cannot wake up
No response to various stimuli
Both deep and shallow reflexes disappear
Involuntary movem... | Both deep and shallow reflexes disappear | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
What is the Compressibility factor (Z) for 0.02 mole of a van des Waal's gas at pressure of 0.01 atm. Assume the size of gas molecules is negligible.
Given: RT=20 L atm ${ mole }^{ -1 }$ and a=1000 atm ${ L }^{ 2 }{ mol }^{ -2 }$
===Choices
1.5
0... | 0.5 | general_qa | 140 |
The following is a multiple choice question (with answers).
===Question
The difference between a tandem stack and a memory stack is that the former generally does not require (), the top of the stack remains stationary during operations, and the data (), while the latter uses ().
===Choices
Data indicator, moving left... | Stack indicator, moves relative to the stack up and down, data moves relative to the top of the stack. | general_qa | 279 |
The following is a multiple choice question (with answers).
===Question
Let the number of occurrences of event A in $[0, t)$, denoted as $\{N(t), t \geq 0\}$, be a homogeneous Poisson process with parameter $\lambda$. Given that event A has happened $n$ times within $\lfloor0, t \rfloor$, find the conditional probabili... | $$
k C_{a}^{k} ·\frac{s^{k-1}} {t^{k}} \left( 1-\frac{s} {t} \right)^{n-k}, \quad0 \leqslant s \leqslant t, 1 \leqslant k \leqslant n
$$ | general_qa | 804 |
The following is a multiple choice question (with answers).
===Question
In China's international trade business, the most commonly used and relatively fair and reasonable commodity inspection method is ( ).
===Choices
Inspection in the exporting country
Random sampling inspection
Inspection in the importing country
We... | Inspection in the exporting country and re-inspection in the importing country | general_qa | 126 |
The following is a multiple choice question (with answers).
===Question
Which of the following causes a fatal encephalitis for which a vaccine is available?
===Choices
Rhinovirus
Japanese Encephalitis Virus
Herpes Simplex Virus
Herpes Simplex Virus Type 1
Herpes Simplex Virus Type 2
Rabies Virus
Rabies
Respiratory syn... | Rabies | general_qa | 96 |
The following is a multiple choice question (with answers).
===Question
Evaluate $\int\int\int_{E}{z \, dV}$, where $E$ is the region defined by:
$$
E = \left\{ (x,y,z) \mid -y \le x \le y, \, 0 \le y \le 1, \, 0 \le z \le 1-x^4-y^4 \right\}
$$
===Choices
113/490
113/480
113/410
113/455
113/440
113/430
113/420
113/470... | 113/450 | general_qa | 182 |
The following is a multiple choice question (with answers).
===Question
The cause of necrosis in the intestinal wall lymph nodes and the formation of ulcers during the 2nd to 3rd week of enteric fever is
===Choices
the action of immunotoxins
the action of enterotoxins
hypersensitivity reaction
bacterial invasiveness
t... | hypersensitivity reaction | general_qa | 127 |
The following is a multiple choice question (with answers).
===Question
If a CPA recklessly departs from the standards of due care when conducting an audit the CPA will be liable to third parties who are unknown to the CPA under the law of
===Choices
Breach of contract.
Strict liability.
Fraud.
Misrepresentation.
Gros... | Gross negligence. | general_qa | 94 |
The following is a multiple choice question (with answers).
===Question
The goal of original diplomacy is to shift Japanese diplomacy from past confrontations with ( ) to coordination.
===Choices
China
Germany
Italy
France
United States
Soviet Union
Canada
United Kingdom
India
UK and US | UK and US | general_qa | 63 |
The following is a multiple choice question (with answers).
===Question
The hydrophysical properties of rocks usually include what of the rock?
===Choices
light reflectance, magnetic permeability, hardness, and fire resistance.
sound-repulsion, thermal insulation, brittleness, and erosion resistance.
water-repellency,... | water-holding, water-permeability, softness, and frost resistance. | general_qa | 176 |
The following is a multiple choice question (with answers).
===Question
Which of the following is the D Pentatonic scale?
===Choices
re, fa, sol, ♭si, do, re
re, mi, ♯fa, la, si, re
re, mi, sol, la, si, re
re, fa, sol, la, do, re | re, fa, sol, la, do, re | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
(a - 9 pts) A candle has a power in the visual band of -3 Watts. When this candle is placed at a distance of 3 km it has the same apparent brightness as a certain star. Assume that this star has the same luminosity as the Sun in the visual band ( $... | $$d= 0. 5 6 ~p c$$ | general_qa | 245 |
The following is a multiple choice question (with answers).
===Question
Assume that the following charges (flat rates) are made on $500 for a year and that the loan in each case is to be repaid in 12 equal monthly installments: (a) 3% , (b) 5%. What is the monthly payment and the true annual interest rate that the borr... | Monthly payments: $42.92 at 3% and $43.75 at 5%; True annual interest rates: 5.5% at 3% and 9.2% at 5% | general_qa | 589 |
The following is a multiple choice question (with answers).
===Question
A varying horizontal force $F= at$ acts on a block of mass m kept on a smooth horizontal surface. An identical block is kept on the first block. The coefficient of friction between the blocks is $\displaystyle \mu.$ The time after which the relati... | $$\displaystyle \frac{2\mu mg}{a}$$ | general_qa | 220 |
The following is a multiple choice question (with answers).
===Question
At 298 K, using the same conductivity cell, the resistance of a $0.0200 \, \mathrm{mol \cdot dm^{-3}}$ KCl aqueous solution is measured to be 100 $\Omega$, the resistance of a saturated AgCl aqueous solution is $1.00 \times 10^{5} \, \Omega$, and t... | $$
1. 0 9 1 \times1 0^{-5} \mathrm{~ m o l ~ \cdot~ d m^{-3} ~}
$$
$$
1. 1 9 \times1 0^{-1 0}
$$ | general_qa | 866 |
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