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
The angular momentum of the sun (assuming uniform rotation) is $J=1. 6 3 \times1 0^{4 8} \mathrm{~ g ~ c m^{2} ~ s^{-1} ~}.$ What is $a / M$ for the sun?
===Choices
$$
1. 5 6 8
$$
$$
0. 8 4 1
$$
$$
3. 9 8 2
$$
$$
1. 7 5 9
$$
$$
2. 1 0 6
$$
$$
4. 2... | $$
0. 1 8 5
$$ | general_qa | 207 |
The following is a multiple choice question (with answers).
===Question
Which of the following interferences is more serious in atomic emission spectrometry than atomic fluorescence spectrometry?
===Choices
Matrix effect influence.
Background radiation effects.
Spectral line interference.
Temperature control fluctuati... | Spectral line interference. | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
Biologists consider viruses to be living organisms. What is their main reasoning?
===Choices
Viruses maintain a stable internal environment through homeostasis.
The virus can complete the self-replication of its genetic material within the host or... | The virus can complete the self-replication of its genetic material within the host organism. | general_qa | 141 |
The following is a multiple choice question (with answers).
===Question
The main responsibility of the CKO (Chief Knowledge Officer) is to oversee all knowledge management-related work within the enterprise. The knowledge management activities undertaken by the enterprise include the following approaches:
I. Develop an... | I,II,III | general_qa | 171 |
The following is a multiple choice question (with answers).
===Question
A particle undergoes simple harmonic motion with a period of $T$. When the particle moves from the equilibrium position in the positive direction along the $x$ axis, what is the shortest time required to travel from the equilibrium position to half... | $T/12$ | general_qa | 122 |
The following is a multiple choice question (with answers).
===Question
Which ice is used to reduce the fat rancidity resulting in bitter flavour compounds to those stored in air (or) oxygen?
===Choices
Crystal ice
Structural ice
Freshwater ice
Sea water ice
Saline ice
Mineral ice
Pack ice
Dry ice
Antibiotic ice
Rapid... | Dry ice | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
What is the commonly used column spacing size for reinforced concrete frame structural systems?
===Choices
4-6m
6-9m
8-12m
9-11m
6-10m
5-7m
10-13m
7-10m
3-5m
5-8m | 6-9m | general_qa | 87 |
The following is a multiple choice question (with answers).
===Question
The following equations of state are occasionally used for approximate calculation on gases : ${\text{Gas}}\left( X \right):RT\left( {1 + \frac{b}{{{V_m}}}} \right)$
$$Gas\left( Y \right){\text{ : }}P\left( {{V_m} - b} \right) = RT$$
Assuming that ... | $Gas\left( X \right)$ is more liquefiable than $Gas\left( Y \right)$ | general_qa | 341 |
The following is a multiple choice question (with answers).
===Question
A gaseous reaction ${ A }_{ (g) }\rightleftharpoons 2{ B }_{ (g) }+{ C }_{ (g) }$ found to be of first order. If the reaction is started with $\rho_{A}=90mm Hg$. the total pressure after $10 min$ is found to be $180 mm Hg$. The rate constant of the... | $4.6$x$10^{-3}$ $s^{-1}$ | general_qa | 279 |
The following is a multiple choice question (with answers).
===Question
Among the following methods, the method that can be used for rational combination of power generation equipment is( ).
===Choices
Slowly retire power generation equipment starting with renewable resources first.
Progressively stop using electric p... | Progressively replace power generation systems from highest to lowest efficiency. | general_qa | 138 |
The following is a multiple choice question (with answers).
===Question
A pressure water transmission pipe has a pipe wall roughness of $\Delta\!=\! 0.3 \, \mathrm{mm}$, with a water temperature of 15°C. If the pipe length $L = 5 \, \mathrm{m}$ and the pipe diameter $d = 1.0 \, \mathrm{cm}$, with a flow rate of $0.05 \... | $$
64.61 (cm)
$$ | general_qa | 236 |
The following is a multiple choice question (with answers).
===Question
When drawing a standard curve, the standard solution should generally have at least ( ) different concentration points.
===Choices
10
8
1
4
7
2
6
3
5
9 | 5 | general_qa | 57 |
The following is a multiple choice question (with answers).
===Question
Optional trading is developed on the basis of (), which is more flexible than it.
===Choices
spot foreign exchange trading
forward foreign exchange trading
derivative financial instruments
commodity trading
international equity markets
flexible ex... | forward foreign exchange trading | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
What is the prototype drug of non-steroidal anti-inflammatory drugs?
===Choices
Salicylate
Aspirin
Salicylic Acid
Ketoprofen
Acetylsalicylic Acid
Ibuprofen
Acetaminophen
Naproxen
Acetylsalicylate | Aspirin | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
The so-called golden ratio composition refers to dividing the frame into equal parts with vertical lines and placing the subject on the dividing line.
===Choices
1
8
5
4
3
9
6
12
2
7 | 3 | general_qa | 63 |
The following is a multiple choice question (with answers).
===Question
Two immiscible liquids P and Q of different densities are contained in a wide U-tube. The heights of the two liquids above the horizontal line xx' which cuts the boundary between the liquids are $H_P$ and $H_Q$ respectively. The U-tube is transpor... | Both liquid levels rise up so that $h_P/H_P = h_Q/H_Q$ | general_qa | 358 |
The following is a multiple choice question (with answers).
===Question
What was the state formed by the children and grandchildren of Shujun, an ancient Chinese man?
===Choices
Southern Qi
Southern Song
Eastern Jin
Northern Zhou
Eastern Han
Western Zhou
Eastern Wu
Northern Wei
Northern Song
Southern Han | Western Zhou | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
What viewpoint did the Qing Dynasty painter Shitao propose in his book "Quotes on Painting from the Monk Bitter Melon"?
===Choices
Prioritizing the use of bold and vibrant colors.
Focusing solely on the natural beauty of landscapes.
Valuing sponta... | Drawing from the past to innovate for the present. | general_qa | 131 |
The following is a multiple choice question (with answers).
===Question
What are the solutions to the following matrix equations? $\left( \begin{matrix} {{{-1}}} & {{{2}}} \\ {{{3}}} & {{{-2}}} \\ \end{matrix} \right) X=\left( \begin{matrix} {{{2}}} & {{{-3}}} & {{{-1}}} \\ {{{0}}} & {{{2}}} & {{{1}}} \\ \end{matrix} \... | $$
\left[ \begin{matrix} {{1}} & {{-\frac{1} {2}}} & {{0}} \\ {{\frac{3} {2}}} & {{-\frac{7} {4}}} & {{-\frac{1} {2}}} \\ \end{matrix} \right]
$$ | general_qa | 788 |
The following is a multiple choice question (with answers).
===Question
Where does the conversion of proinsulin into insulin take place?
===Choices
Nucleus
Golgi apparatus
Mitochondria
Plasma membrane
Endoplasmic reticulum
Cytoplasm
Peroxisome
Secretory vesicle
Ribosome
Lysosome | Golgi apparatus | general_qa | 75 |
The following is a multiple choice question (with answers).
===Question
If a 1-kg object could be converted entirely into energy, how long could a 100-Wlight bulb be illuminated?A 100-W bulb uses 100 J of energy each second.
===Choices
5.5 × 10^7 years
3.0 × 10^7 years
1.5 × 10^7 years
2.0 × 10^8 years
9.0 × 10^6 year... | 2.9 × 10^7 years | general_qa | 172 |
The following is a multiple choice question (with answers).
===Question
Let the function $f(z)$ be analytic on the complex plane, where $f(z) = \sum_{n=0}^{∞} a_{n} z^{n}$. For any positive integer $k$, what is the residue of the function $\frac{f(z)}{z^{k}}$ at the point $z=0$, denoted as $\mathrm{Res} \left[ \frac{f(... | $$a_{k-1}
$$ | general_qa | 199 |
The following is a multiple choice question (with answers).
===Question
The monomer for producing chloroprene rubber, 2-chlorobutadiene-1,3, is obtained through the dehydrochlorination of 3,4-dichlorobutene in ethanol using a base. The reaction equation is as follows:
$$
\text{CH}_2 = \text{CH}-\text{CHCl}-\text{CH}_2\... | 0.967 | general_qa | 464 |
The following is a multiple choice question (with answers).
===Question
A sample consisting of 1mol of a monoatomic perfect gas $\begin{pmatrix} C_{ v }=\frac { 3 }{ 2 } R \end{pmatrix} $ is taken through the cycle as shown :$\Delta U$ for the process $(1 \longrightarrow 2)$ is :
===Choices
$$3.40 \times 10^{ 2 } J$$... | $$3.40\times 10^{ 3 } J$$ | general_qa | 223 |
The following is a multiple choice question (with answers).
===Question
The initial embryos of warm clouds are produced through a _______ process.
===Choices
stable diffusion
independent evaporation
random sublimation
periodic transpiration
heterogeneous nucleation
dynamic absorption
uniform crystallization
homogeneou... | heterogeneous nucleation | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
In a shell-and-tube heat exchanger, cold water is used to cool hot water from 100°C to 50°C, with the hot water having a mass flow rate of 3500 kg/h. The cooling water flows inside a pipe with a diameter of $\varphi1 8 0 \mathrm{mm} \times 1 0 \mat... | $$
3.58m
$$
$$
3.28m
$$ | general_qa | 405 |
The following is a multiple choice question (with answers).
===Question
In what layer are remote sensing activities carried out by geostationary satellites generally located?
===Choices
upper ionosphere
outer atmosphere
middle exosphere
lower ionosphere
lower stratosphere
inner mesosphere
upper thermosphere
upper trop... | outer atmosphere | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
A spherical of iron of radius 2 mm is falling through a column of glycerine. If denesities of glycerine and iron are respectively : $1.3*10^3 kg/m^3$ and $8*10^3 kg/m^3$ n for glycerine =0.83 kg/m-s, then the terminal velocity is:
===Choices
0.077... | 0.7 m/s | general_qa | 172 |
The following is a multiple choice question (with answers).
===Question
Air undergoes reversible adiabatic flow in a converging nozzle. At section a, the parameters are \( $p_{a}$ = $0.5 \ \text{MPa}, \ t_{a}$ = $400 \ \degree\text{C}, \ c_{\text{f, s}}$ = $148 \ \text{m/s}$ \). The exit cross-sectional area of the noz... | $$
2. 1 k g / s
$$
$$
0. 5 8 2 m^{3} / k g
$$
$$488.88m/s$$ | general_qa | 582 |
The following is a multiple choice question (with answers).
===Question
A 20- year-old man presents to the EN'T clinic with sudden onset high fever of one day duration, on examination: both tonsils are congested with whitish membrane over the right tonsil with petichae over the palate and palpable both jugulodiagastric... | Infectious mononucleosis | general_qa | 152 |
The following is a multiple choice question (with answers).
===Question
Upon selfing of the reciprocal translocation heterozygote, what proportion of the offspring will be translocation homozygotes?
===Choices
30%
5%
100%
50%
45%
15%
20%
25%
10%
0 | 25% | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
In the late stage of febrile disease, with night fever and early coolness, the fever subsides without sweating, a red tongue with less coating, and a thready and rapid pulse, what treatment should be used?
===Choices
Xijiao Dihuang Decoction
Dangg... | Qinghao Jianjia Decoction | general_qa | 154 |
The following is a multiple choice question (with answers).
===Question
What is the most important measure to prevent raw medicinal materials from becoming moldy?
===Choices
Steam or boil
Frequent inspection
Thoroughly dry
Combating Storage
Seal tightly
Use insecticide
Control humidity
Limit sunlight exposure
Light-Av... | Thoroughly dry | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
Consider the equation
$$$\left \lfloor \frac{3n}{5} \right \rfloor^2 + \left \lfloor \frac{4n}{5} \right \rfloor^2 = n^2 - k$$$
where $n, k$ are positive integers. How many distinct values can $k$ take on if $k \leq 1200$ ?
===Choices
655
662
661
... | 660 | general_qa | 143 |
The following is a multiple choice question (with answers).
===Question
The thinnest part of the temporomandibular joint disc is ( ).
===Choices
Two-plank area
Outer fringe sector
Dual layer zone
Central seam line
Mid-section belt
Edge boundary area
Rear belt
Header
Posterior region
Forward strip | Mid-section belt | general_qa | 71 |
The following is a multiple choice question (with answers).
===Question
Given the following product, which of the following keyword sets is most suitable for it?
Product Title: iKross Soporte para Tablet 7-12 Pulgadas, Soporte de Coche para Reposacabezas del Coche Negro
Product Description: iKross universal El soporte ... | coche, pulgadas, sujeta, mini | general_qa | 837 |
The following is a multiple choice question (with answers).
===Question
Calculate the equilibrium concentration of manganese in the steel melt for a steelmaking slag composition of $x(\text{CaO} + \text{MgO}) = 45\%$, $x(\text{SiO}_2 + \text{Al}_2\text{O}_3 + \text{P}_2\text{O}_5) = 25\%$, $x(\text{FeO}) = 25\%$, $x(\t... | $w_{\text{Mn}}=3.8\%$ | general_qa | 284 |
The following is a multiple choice question (with answers).
===Question
In steady-state heat conduction through a double-layered flat wall, if the thickness of each layer is the same, $\Delta t_{1} < \Delta t_{2}$ , which of the following describes the corresponding thermal conductivity relationship?
===Choices
λ1<λ1
... | λ1>λ2 | general_qa | 119 |
The following is a multiple choice question (with answers).
===Question
For goods with lower value and lighter outer packaging, the commonly used gravimetric method is ( ).
===Choices
Net weight
Legal weight
Tare weight
Adjusted weight
Gross weight
Conditioned weight
Packed weight
Total weight | Gross weight | general_qa | 64 |
The following is a multiple choice question (with answers).
===Question
To move the economy closer to full employment the central bank decides that the federal funds rate must be increased. The appropriate open market operation is to ______ which ______ the money supply ______ aggregate demand and fights ______. OMO ... | Sell bonds Decreases Decreases Inflation | general_qa | 213 |
The following is a multiple choice question (with answers).
===Question
What is the process used to extract sodium from halide ores such as sodium chloride (NaCl)?
===Choices
Fractional distillation
Electro metallurgy
Thermal dissociation
Pyro metallurgy
Biological digestion
Gravity separation
Magnetic extraction
Chem... | Electro metallurgy | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
Primal Environment refers to__.
===Choices
This indicates the variety of ecological zones across the barren stratosphere from high altitude cloud systems to the lower levels of atmospheric interfaces.
This describes the composite microbial environ... | This refers to the sum of physicochemical conditions in the deep space from beneath the surface of natural precipitation cycles down to where magmatic differentiation and metamorphism occur. | general_qa | 280 |
The following is a multiple choice question (with answers).
===Question
How many ways are there to color the vertices of a cube with two colors, up to rotation?
===Choices
42
18
48
33
23
10
36
26
30
15 | 23 | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
Which article of the UCMJ addresses the issue of insubordinate conduct by military personnel?
===Choices
Article 88
Article 85
Article 94
Article 86
Article 89
Article 91
Article 92
Article 90
Article 87
Article 93 | Article 91 | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
When installing a pressure gauge on a pipeline to measure the pressure of high-temperature (above 60°C) fluid media, to prevent direct contact between the hot medium and the elastic element, a ( ) should be installed before the pressure instrument ... | u-shaped or coiled tube type condenser | general_qa | 183 |
The following is a multiple choice question (with answers).
===Question
The Red Army and the Blue Army engaged in a battle. Given that:
- The Red Army's combat efficiency constant is\( k_R = 0.002\)
- The Blue Army's combat efficiency constant is\( k_B = 0.003\)
- At the start of the battle, the Red Army has\( R_0 = 80... | 620 soldiers | general_qa | 211 |
The following is a multiple choice question (with answers).
===Question
Given that there are 30 cars randomly distributed along a 6 km long road, find the probability that there are at least 4 cars in any 500 m segment of the road is ().
===Choices
0.317
0.487
0.182
0.289
0.244
0.456
0.201
0.374
0.159
0.138 | 0.244 | general_qa | 119 |
The following is a multiple choice question (with answers).
===Question
In which key is the correct resolution from mi-la to re-la?
===Choices
A major
C major
G major
D major | D major | general_qa | 42 |
The following is a multiple choice question (with answers).
===Question
A fuel cell develops an electrical potential from the combustion of butane at 1 bar and 298 K
$$\begin{array}{l}{C_4}{H_{10}}\left( g \right) + 6.5{O_2}\left( g \right) \to 4C{O_2}\left( g \right) + 5{H_2}O\left( l \right)\{\Delta _r}{G^0} = - 274... | $$0.547$$ | general_qa | 210 |
The following is a multiple choice question (with answers).
===Question
Three-phase bridge fully controlled rectifier circuit, resistance-inductance load, $R=5 \Omega$, L value is very large, when $\alpha=3 0^{\circ}$, the average output voltage is $U_{\mathrm{d}}=2 0 0 \mathrm{V}$. When $X_{\mathrm{B}}=0$ , what is th... | 32.66A | general_qa | 189 |
The following is a multiple choice question (with answers).
===Question
The tea leaf ingredients used to brew "Dragon-Tiger Fighting" are ().
===Choices
Steamed Red Tea
Frosted Earl Grey Tea
Jasmine Green Tea
Fermented White Tea
Blended Herbal Tea
Roasted Black Tea
Smoked Yellow Tea
Wild Black Tea Leaves
Sun-Dried Gre... | Sun-Dried Green Tea | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
What is the pH OF $0.1$ M $NaHCO_3$? $K_1$ = $ 5 $ $\times$ ${ 10 } ^{ -7 }$,$K_2$ = $ 5 $ $\times$ ${ 10 }^{ -11 }$ for carbonic acids.
===Choices
9.78
9.88
8.78
7.58
7.68
9.58
5.58
8.58
9.68
8.68 | 9.68 | general_qa | 138 |
The following is a multiple choice question (with answers).
===Question
Japanese scientists proposed the "Neutral Theory of Evolution." What is its primary basis?
===Choices
Physiological Evidence
Evidence of Biomacromolecules
Chromosomal Rearrangements
Gene Flow Hypothesis
Genetic Drift Importance
Fossil Evidence
Mor... | Evidence of Biomacromolecules | general_qa | 87 |
The following is a multiple choice question (with answers).
===Question
In the article "The Chinese Communist Party's Views on the Current Situation" published in June 1922, it is believed that the root cause of China's internal and external troubles is ( )
===Choices
Imperialist influence and domestic warlordism
Impe... | Imperialist aggression and warlord politics | general_qa | 136 |
The following is a multiple choice question (with answers).
===Question
A submerged body moves horizontally in oil $( \gamma=521 \, \mathrm{bf/ft^3}, \, \mu=0.0006 \, \mathrm{lbf \cdot sec/ft^2} )$ at a speed of 45 ft/sec. To study the characteristics of this motion, an enlarged model of this object is tested in water ... | $$
6 2 1 \mathrm{l b f}
$$ | general_qa | 295 |
The following is a multiple choice question (with answers).
===Question
A 61-year-old man comes to the emergency department because of a 3-hour history of pain and redness of both eyes. He has new blurry vision and difficulty opening his eyes in bright surroundings. He has not had any recent trauma. He uses contact len... | Autoimmune reaction against retinal antigens | general_qa | 283 |
The following is a multiple choice question (with answers).
===Question
What are the differences between cancer cells and normal cells?
===Choices
Cancer cells are constantly in the division phase of the cell cycle.
Cancer cells can continue to divide even though they are in close contact with each other.
Cancer cells... | Cancer cells can continue to divide even though they are in close contact with each other. | general_qa | 118 |
The following is a multiple choice question (with answers).
===Question
The magnetic field in a plane electromagnetic wave is given by
$B=(200\mu T)\sin \left[4\times 10^{15}\left(t-\dfrac {x}{c}\right)\right]$. The average energy density is
===Choices
0.032\ J/m^{3}
0.16\ J/m^{3}
0.02\ J/m^{3}
$$16\ J/m^{3}$$
$$0.01... | $$0.016\ J/m^{3}$$ | general_qa | 176 |
The following is a multiple choice question (with answers).
===Question
On June 3, 2016, a fire broke out in a dormitory building at a certain university in China, resulting in the deaths of three people. It was later determined that the fire was caused by student Chen, who carelessly discarded a cigarette butt, igniti... | Fire negligence | general_qa | 145 |
The following is a multiple choice question (with answers).
===Question
An autopsy was performed on a case of accidental death. It showed two linear fractures on petrous pa of temporal bone. Which of the following rules gives the sequence of fractures?
===Choices
Young's rule
Dunlop's rule
McNaughton's rule
Puppe's ru... | Puppe's rule | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
In which year did renowned Indiana University professor Christopher Beckwith complete his PhD in Philosophy?
===Choices
1971
1977
1975
1976
1972
1974
1979
1973
1980
1978 | 1977 | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
According to the main data results of the seventh national population census announced by the Chinese State Council Information Office on May 11, 2021, what is the percentage of the population in the eastern region of China?
===Choices
39.37%
39.3... | 39.93% | general_qa | 123 |
The following is a multiple choice question (with answers).
===Question
Under the conditions of 101.3 kPa and 52 K, the mole fraction of a certain gas mixture is as follows: $CO_2$ 0.080; $O_2$ 0.035; $H_2O$ 0.160; $N_2$ 0.725. The absolute velocities of each component in the $z$ direction are, respectively: 2.44 m/s; ... | $$
j_{\mathrm{C O_{2}}}=-1. 2 1 \mathrm{k g} / ( \mathrm{m}^{2} \cdot\mathrm{s} )
$$ | general_qa | 596 |
The following is a multiple choice question (with answers).
===Question
What is the cost of the transportation solution shown in the table?W X Y Supply A $3 20 $5 50 $9 0 70 B $5 0 $4 30 $7 0 30 C $10 40 $8 0 $3 80 120 Demand 60 80 80 220
===Choices
$1030
$1040
$1050
$1230
$1130
$1070
$1060
$1350
$1150 | $1070 | general_qa | 157 |
The following is a multiple choice question (with answers).
===Question
Let $ G_1,G_2, G_3$ be the centroids of the triangular faces OBC, OCA, OAB of a tetrahedron OABC. If $V_1$ denote the volume of the tetrahedron OABC and $V_2$ that of the parallelepiped with $OG_1, OG_2, OG_3$ as three concurrent edges, then
===Ch... | $$4 V_1=9 V_2$$ | general_qa | 200 |
The following is a multiple choice question (with answers).
===Question
What is the formula for calculating the total carbonate concentration $\Sigma\mathrm{CO}_2$?
===Choices
[CO₂] + 2[H₂CO₃] + [HCO₃⁻]
[CO₂] + [HCO₃⁻] + [CO₃²⁻]
[CO₂] + 2[H₂CO₃] + [CO₃²⁻]
[CO₂] + [H₂CO₃] + [CO₃²⁻]
[CO₂] + 2[CO₃²⁻] + [HCO₃⁻]
[CO₂] + [H... | [CO₂] + [HCO₃⁻] + [CO₃²⁻] | general_qa | 248 |
The following is a multiple choice question (with answers).
===Question
When was the Nanhu Evening News founded?
===Choices
1998
1994
1996
1997
1995
1993
1987
1986
1992
1985 | 1995 | general_qa | 75 |
The following is a multiple choice question (with answers).
===Question
Which of the following punctuation/segmentation of parts of the text is correct
===Choices
纯礼字彝叟/以父仲淹荫/知陵台令兼永安/县永昭陵建京西转运使配木石砖甓及工徒于一路/独永安不受令/
纯礼字彝叟/以父仲淹/荫知陵台令兼永安县/永昭陵建/京西转运使配木石砖甓及工徒于一路/独永安不受令/
纯礼字彝叟/以父仲淹荫/知陵台令兼永安县/永昭陵建京西转运使/配木石砖甓及工徒于一路/独永安不受令/
纯礼字彝... | 纯礼字彝叟/以父仲淹荫/知陵台令兼永安县永昭陵建/京西转运使配木石砖甓及工徒于一路/独永安不受令/ | general_qa | 487 |
The following is a multiple choice question (with answers).
===Question
A source of constant voltage $V$ is connected to a resistance $R$ and two ideal inductors $L_{1}$ and $L_{2}$ through a switch $S$ as shown. There is no mutual inductance between the two inductors. The switch $S$ is initially open. At $t=0$, the sw... | The ratio of the currents through $L_{1}$ and $L_{2}$ is fixed at all times $(t\ >\ 0)$ | general_qa | 253 |
The following is a multiple choice question (with answers).
===Question
The outer diameter of a certain turbine impeller is $d_{1}=2.4 \, \mathrm{m}$, and the inner diameter is $d_{2}=1.6 \, \mathrm{m}$, with an inflow rate of $Q=0.27 \, \mathrm{m}^{3}/\mathrm{s}$. The absolute velocity of the water entering the impell... | $$
5. 9 \, \mathrm{( k N \cdot m )}
$$ | general_qa | 448 |
The following is a multiple choice question (with answers).
===Question
The following vectors are given:
$u = 2 \cdot \mathbf{i} - 3 \cdot \mathbf{j} + 2 \cdot \mathbf{k}$
$v = 3 \cdot \mathbf{i} + 2 \cdot \mathbf{j} - 3 \cdot \mathbf{k}$
Find the following component:
Project of $u$ onto $v$
===Choices
w=\frac{9}{22}\... | w=\frac{9}{11}\cdot i+\frac{6}{11}\cdot j-\frac{9}{11}\cdot k | general_qa | 397 |
The following is a multiple choice question (with answers).
===Question
How many kilobytes of memory did the IBM 7030 Stretch have?
===Choices
1536
2048
4096
1024
2049
2047
10240
512
2560
2046 | 2048 | general_qa | 84 |
The following is a multiple choice question (with answers).
===Question
10 ml of 0.1 M triprotic acid $H_3A$ is titrated with $0.1M\: NaOH$ solution. If the ratio of $\dfrac {[H_3A]}{[A^{3-}]}$ at $2^{nd}$ equivalence point is expressed as $10^{-p}$, then $p$ is :[Given : $K_1 = 10^{-4}; K_2 = 10^{-8}; K_3 = 10^{-12}$ ... | 6 | general_qa | 153 |
The following is a multiple choice question (with answers).
===Question
Consider the set $V$ containing all integers $e$ between 1 and 2021 (inclusive) that are coprime to 2021. Define a function $E(z)$ for non-negative integers $z$ as follows: \[ E(z) = \sum_{e \in V} e^z. \] What is the largest value of $z$ below 202... | 2020 | general_qa | 169 |
The following is a multiple choice question (with answers).
===Question
Clinical manifestations of mitochondrial neurogastrointestinal encephalomyopathy include which of the following?
===Choices
Extraocular muscle paralysis, Gastrointestinal neuropathy, Peripheral neuropathy, Liver enlargement
Extraocular muscle para... | Extraocular muscle paralysis, Gastrointestinal neuropathy, Peripheral neuropathy, Sensorineural deafness | general_qa | 225 |
The following is a multiple choice question (with answers).
===Question
Which of Repin's paintings has its visual center around the person writing a letter?
===Choices
The Portrait of Modest Mussorgsky
The Arrest of a Propagandist
The Baptism of Grand Prince Vladimir
Tolstoy
The Surrender of the Turkish City
The Unexp... | The Zaporozhian Cossacks Write to the Turkish Sultan | general_qa | 117 |
The following is a multiple choice question (with answers).
===Question
In Chlamydomonas reinhardtii, when the 134th amino acid histidine mutates into what, can the protein produce twice the photocurrent?
===Choices
Lysine
Valine
Glycine
Arginine
Threonine
Alanine
Serine
Asparagine
Proline
Glutamine | Arginine | general_qa | 87 |
The following is a multiple choice question (with answers).
===Question
Kata thermometer is used to measure: September 2007
===Choices
Air density
Air heat exchange efficiency
Air temperature
Degree of air thermal conductivity
Degree of hotness in air
Air heat exchange rate
Degree of air humidity
Air pressure
Air cool... | Air cooling power | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
Assume a Schottky diode composed of a certain metal and the crystal plane of n-type silicon, where the barrier height on the semiconductor side after contact is known to be $0.50 \mathrm{eV}$, $N_{\mathrm{D}}=10^{15} \mathrm{cm}^{-3}$, $N_{\mathrm{... | $$
3. 7 \times1 0^{-6}
$$ | general_qa | 389 |
The following is a multiple choice question (with answers).
===Question
According to Karl Küchler, what was the name of the hereditary disease that the House of Wittelsbach had, which would become more pronounced in Empress Elisabeth?
===Choices
Chronic Neurasthenia Condition.
Epilepsy.
Chronic Fatigue Syndrome.
Chron... | Neurasthenia. | general_qa | 122 |
The following is a multiple choice question (with answers).
===Question
It is known that in humans, there are two dominant phenotypes: the ACHOO syndrome (sneezing in response to bright light) and trembling chin caused by anxiety. What are the probabilities that the first child of parents who are both heterozygous for ... | 3/16 and 1/16 | general_qa | 217 |
The following is a multiple choice question (with answers).
===Question
Albinism, a condition characterized by a lack of pigment in the skin, eyes, and hair, occurs in certain populations with a frequency of 0.00005. Assuming albinism is determined by a single recessive gene, a (a) what is the probability of an albino ... | 0.7%, 0.99 | general_qa | 210 |
The following is a multiple choice question (with answers).
===Question
The heat capacity of copper between $20^{\circ} \ \mathrm{C}$ and its melting point can be expressed as $C_{\mathrm{p}} = 22.6 + 6.27 \times 10^{-3} \, T \mathrm{~ J / (mol \cdot K)}$. The heat of fusion for copper is $13,290 \, \mathrm{J/mol}$, an... | $$
4 4 8 \ ( \mathrm{K} )
$$ | general_qa | 339 |
The following is a multiple choice question (with answers).
===Question
Which of the following intervals is not the inversion of a diminished fourteenth?
===Choices
An augmented second separated by an octave
Augmented second
Augmented seventh
Augmented ninth | Augmented seventh | general_qa | 51 |
The following is a multiple choice question (with answers).
===Question
Set matrix$A=\left( \begin{matrix} {{{1}}} & {{{-1}}} & {{{1}}} \\ {{{a}}} & {{{4}}} & {{{b}}} \\ {{{-3}}} & {{{-3}}} & {{{5}}} \\ \end{matrix} \right)$, given that $A$ has three linearly independent eigenvectors, $\lambda=2$ is the double eigenroo... | $$
a=2, b=-2
$$ | general_qa | 237 |
The following is a multiple choice question (with answers).
===Question
For steel gears with tooth hardness greater than 350 HBS, the process is generally ( ).
===Choices
Processed Gear Blank - Gear Grinding - Gear Cutting - Quenching
Processing Gear Blanks -- Quenching -- Gear Grinding -- Polishing
Machining gear bla... | Gear Blanking -- Gear Cutting -- Quenching -- Gear Grinding | general_qa | 174 |
The following is a multiple choice question (with answers).
===Question
Zhuangzi's disciple asked in the chapter 'Mountain Trees', 'The tree on the mountain lives because it is useless, but the goose dies because it is useless. So, should we be useful or useless?' Which of the following answers best aligns with Zhuangz... | Master things without being mastered by them | general_qa | 157 |
The following is a multiple choice question (with answers).
===Question
Several states have enacted laws shielding reporters from being compelled to release the names of confidential sources. Now, Congress, under intense lobbying pressure from the press, proposes to enact legislation forbidding any state from requiring... | Congress has the authority under the commerce clause to regulate the flow of news. | general_qa | 290 |
The following is a multiple choice question (with answers).
===Question
Which faction was associated with the founding of The Martian?
===Choices
Phoenicians
Carthaginians
Spartans
Bolsheviks
Visigoths
Mongols
Vikings
Romans
Moors
Sumerians | Bolsheviks | general_qa | 67 |
The following is a multiple choice question (with answers).
===Question
We have two (narrow) capillary tubes ${T}_{1}$ and ${T}_{2}$. their lengths are ${l}_{1}$ and ${l}_{2}$ and radii of cross section are ${r}_{1}$ and ${r}_{2}$ respectively. The rate of flow of water under a pressure difference $P$ through tube ${T}... | $$(16/3)\,{cm}^{3}\,/\,sec$$ | general_qa | 333 |
The following is a multiple choice question (with answers).
===Question
The resting potential of nerve cells is -70mV, the Na+equilibrium potential is+60mV, and the electrochemical driving force of Na+is ( ).
===Choices
+130mV
-100mV
+10mV
-60mV
+30mV
-80mV
+50mV
-130mV
+70mV
- 10mV | -130mV | general_qa | 118 |
The following is a multiple choice question (with answers).
===Question
A uniformly solid sphere of mass $M$ and radius $R$ is fixed a distance $h$ above a thin infinite sheet of mass density $\rho_5$ (mass/area). With what force does the sphere attract the sheet?
===Choices
$2\pi^2 \rho_s G M R$
$\pi$ $\rho_s G M$
$2... | $2\pi$ $\rho_s G M$ | general_qa | 182 |
The following is a multiple choice question (with answers).
===Question
In order to ensure a good separation effect, the ion exchange process should be carried out in what concentration of the solution?
===Choices
Constant concentration
Moderate concentration
1 molar concentration
Varying concentration
Peak concentrat... | Low concentration | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
A particle is subjected to two simple harmonic motions along $x$ and $y$ directions according to $x =6 sin 100 \pi t$ and $y=8 cos (100 \pi t- \dfrac{ \pi}{2})$
===Choices
Motion of particle is straight line
Motion of particle is circle
Motion of ... | Motion of particle is ellipse | general_qa | 112 |
The following is a multiple choice question (with answers).
===Question
What is the percentage of the natural occurrence of the stable tantalum isotope 180m?
===Choices
0.12%
0.00012%
0.0123%
0.0012000%
0.0012%
0.001234%
0.00123%
0.001200%
0.012%
0.00120% | 0.012% | general_qa | 115 |
The following is a multiple choice question (with answers).
===Question
What is the amplitude of temperature change caused by an 80 dB plane sound wave in air at 20°C and standard atmospheric pressure?
===Choices
$$
3. 0 \times1 0^{-2} \mathrm{~ K}
$$
$$
2. 3 \times1 0^{-4} \mathrm{~ K}
$$
$$
1. 1 \times1 0^{-6} \math... | $$
2. 3 \times1 0^{-4} \mathrm{~ K}
$$ | general_qa | 265 |
The following is a multiple choice question (with answers).
===Question
The clock frequency of a certain bus is 66MHz. In a $64$-bit bus, the data transmission cycle is 7 clock cycles to transmit a 6-word data block. What is the data transfer rate of the bus?
===Choices
$$
6 8 / 2 \mathrm{M H z}
$$
$$
7 3 / 2 \mathrm{... | $$
6 6 / 7 \mathrm{M H z}
$$ | general_qa | 237 |
The following is a multiple choice question (with answers).
===Question
From the perspective of wood anatomy, wood is a composite formed by various shapes and functional tissues or organs ( ).
===Choices
Fiber
Flexible stems
Square vessels
Hollow tubes
Catheter
Thin-walled cells
Tubular cells
Elongated roots
Rigid por... | Tubular cells | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
Let $(X_{1}, X_{2}, \cdots, X_{n})$ be a sample of the population $N (1, 2^{2})$ and $\overline{X}$ be the sample mean, then what is the correct statement about the relationship between the sample and the population?
===Choices
$$
\frac{1} {4} \su... | $$
\frac{1} {4} \sum_{i=1}^{n} ( X_{i}-1 )^{2} \sim\chi^{2} ( n )
$$ | general_qa | 484 |
The following is a multiple choice question (with answers).
===Question
Elementary reaction $\mathrm{BrH_{2}} \longrightarrow \mathrm{HBr + H}$, the experimentally determined pre-exponential factor is $A = 3.00 \times 10^{13} \ \mathrm{cm^3 \cdot mol^{-1} \cdot s^{-1}}$. What are the reaction cross-section and collisio... | $$
2. 4 0 \times1 0^{-2} \ \mathrm{m}^{2}, \ 8 7. 4 \ \mathrm{p m}
$$ | general_qa | 520 |
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