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
Which company produced the representative left-wing film 'Children of the Storm'( ).
===Choices
Huaguang
Tianma
Lianhua
Longma
Xinhua
Celebrity
Chunlian
Yihua
Diantong
Minxin | Diantong | general_qa | 68 |
The following is a multiple choice question (with answers).
===Question
What is the phenomenon of fiber fatigue? What are the causes behind it?
===Choices
Moderate pressures applied steadily, or periodic adjustments, can cause structural weakening.
Causes:this involves gradual viscoelastic shifts and plastic reshaping... | Small loads acting over a long period, or continuous loading and unloading, can lead to material destruction.
Causes:this includes the accumulation of viscoelastic deformation and plastic deformation. | general_qa | 342 |
The following is a multiple choice question (with answers).
===Question
The equation of the curve that is orthogonal to the family of integral curves defined by the equation $( x \mathrm{l n} x ) \mathrm{d} x-( y-\mathrm{l n} x ) \mathrm{d} y=0$ and passes through the point $( e, 1 )$ is ( ).
===Choices
$y={\frac{1} {... | $y={\frac{1} {2}} \left( \ln x+{\frac{1} {\ln x}} \right)$ | general_qa | 382 |
The following is a multiple choice question (with answers).
===Question
It is known that the string S='aaab', its Next array value is ( ).
===Choices
1123
0213
1211
0123
2131
1231
1312
3211
2321 | 0123 | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
A small ball of mass m and charge +q tied with a string of length $l$, rotating in a vertical circle under gravity and a uniform horizontal electric field E as shown. The tension in the string will be minimum for:
===Choices
$$\displaystyle \theta... | $$\displaystyle \theta = \pi + tan^{-1} \left(\frac{qE}{mg}\right)$$ | general_qa | 323 |
The following is a multiple choice question (with answers).
===Question
A ,man of mass $m=60\ kg$ is standing on weighing machine fixed on a triangular wedge of angle $\theta ={ 60 }^{ \circ }$ as shown in the figure. The wedge is moving up with an upward acceleration $a=2{ m/s }^{ 2 }.$ The weight registered by machi... | $$360\ N$$ | general_qa | 177 |
The following is a multiple choice question (with answers).
===Question
What similarities exist between chordates and advanced invertebrates?
===Choices
Hemocoel, asymmetrical body plan, radial symmetry
Notochord, deuterostome, and true coelom
Deuterostome, trilaminar germ layers, true coelom
Closed circulatory system... | Deuterostome, trilaminar germ layers, true coelom | general_qa | 167 |
The following is a multiple choice question (with answers).
===Question
The recessive genes a, b, and c in fruit flies are sex-linked. The F1 generation produced by crossing two parents is a+b+c+ and abc. When these two F1 individuals (abc Y) are crossed, what is the correct outcome?
===Choices
The mating value can be... | The mating value can be determined solely based on the male fruit flies in F2. | general_qa | 239 |
The following is a multiple choice question (with answers).
===Question
In live afforestation, the methods of artificial seeding include broadcasting, drill seeding, spot seeding, and_______.
===Choices
grid planting
patch sowing
strip planting
cell seeding
block seeding
clump seeding
mound seeding
pod seeding
cluster... | clump seeding | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
A point object is moving with speed ${ u }_{ 0 }$ at a position somewhere between 2F and F in front of a convex lens. The speed of its image is :
===Choices
$${ u }_{ 0 } \times \frac{5}{3}$$
$$>{ u }_{ 0 } \times \frac{3}{2}$$
$$={ u }_{ 0 }$$
ma... | $$={ u }_{ 0 }$$ | general_qa | 184 |
The following is a multiple choice question (with answers).
===Question
A neutron consists of one "up" quark of charge $+2 e / 3$ and two "down" quarks each having charge $-e / 3$. If we assume that the down quarks are $2.6 \times 10^{-15} \mathrm{~m}$ apart inside the neutron, what is the magnitude of the electrostati... | $3.8$$N$ | general_qa | 160 |
The following is a multiple choice question (with answers).
===Question
Let $N_1(t)$ and $N_2(t)$ be two independent Posson processes with rate $\lambda_1 = 1$ and $\lambda_2 = 2$, respectively. Let N(t) be the merged process N(t) = N_1(t) + N_2(t). Given that N(1) = 2, Find the probability that N_1(1) = 1.
===Choices... | 0.4444 | general_qa | 186 |
The following is a multiple choice question (with answers).
===Question
Martha Michael spends $360 on her monthly telephone bills. This amounts to 6 (1 / 4) % of her earnings for the year. Find her yearly earnings.
===Choices
$6,500
$5,500
$6,200
$6,000
Both $5,760 and $5,760.00 are correct
$5,760
$5,800
$4,500
$5,760... | Both $5,760 and $5,760.00 are correct | general_qa | 140 |
The following is a multiple choice question (with answers).
===Question
The Clark's Nutcracker (*Nucifraga columbiana*), the Pinyon Jay (*Gymnorhinus cyanocephalus*), and the Steller's Jay (*Cyanocitta stelleri*) are closely related species within the same family. The Clark's Nutcracker inhabits high-altitude regions a... | Nutcracker Jay > Spotted Nutcracker > Blue Jay | general_qa | 379 |
The following is a multiple choice question (with answers).
===Question
The pits on the tracheid wall of conifers are ().
===Choices
Marginal pits with no concentric circles when viewed from the front
Marginal pits with 2 concentric circles when viewed from the side
Pit groove
Semi-marginal pits
Marginal pits with thr... | Bordered pits with three concentric circles in front view | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
A 26 -year-old male falls from the ladder and had suffered an intense head injury with moderate bleeding . suffers from head injury after falling from a ladder and bleeding in his head. During surgery , neurosurgeon noticed loss of sensation in the... | Trigeminal nerve | general_qa | 133 |
The following is a multiple choice question (with answers).
===Question
The electric flux through a certain area of dielectric is $8.76 \times 10^3 t^4$. The displacement current through the area is $12.9 pA$ at $t = 26.1 ms$ . Find the dielectric constant of the material.
===Choices
5 \times 10^{-8}
1 \times 10^{-8}
... | $$2 \times 10^{-8}$$ | general_qa | 181 |
The following is a multiple choice question (with answers).
===Question
Which type of cell, if its apoptosis is delayed, may be associated with the occurrence of multiple organ dysfunction syndrome?
===Choices
Endothelial cells
Macrophages
Neutrophils
Lymphocytes
Eosinophils
Intestinal epithelial cells
Monocytes | Neutrophils | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
LiBr has an NaCl-type crystal structure, with a density of 3.464 g/cm³. What is the distance between Li⁺ and Br⁻?
===Choices
$$
3 0 5 {\mathrm{~ p m}}
$$
$$
2 6 0 {\mathrm{~ p m}}
$$
$$
2 7 5 {\mathrm{~ p m}}
$$
$$
3 1 5 {\mathrm{~ p m}}
$$
$$
3 2... | $$
2 7 5 {\mathrm{~ p m}}
$$ | general_qa | 211 |
The following is a multiple choice question (with answers).
===Question
How many of the indicated atoms are represented by each chemical formula: (a) carbon atoms in $C_2H_5COOCH_3$, (b) oxygen atoms in $\mathrm{C a ( C l O_{4} )_{2}}$ , (c) hydrogen atoms in $(NH_4)_2HPO_4$?
===Choices
4, 6, 7
4, 8, 9
5, 6, 10
4, 8, ... | 4, 8, 9 | general_qa | 174 |
The following is a multiple choice question (with answers).
===Question
A body of mass $4\ kg$ moves under the action of a force $\overrightarrow { F } =\left( \hat { 4i } +12{ t }^{ 2 }\hat { j } \right) N$, where $t$ is the time in second. The initial velocity of the particle is $(2\hat { i } +\hat { j } +2\hat { k ... | $$14\ J$$ | general_qa | 175 |
The following is a multiple choice question (with answers).
===Question
The second law of thermodynamics explains the ____ of energy conversion
===Choices
Speed
Direction
Proportionality
Efficiency
Rate
Ratio
Quantitative relationship
Limit | Quantitative relationship | general_qa | 50 |
The following is a multiple choice question (with answers).
===Question
The correct statements about the Yokoyama Rule are:
===Choices
The most effective control relies on institutional constraints.
Proposed by Adams.
Revolutions depend on self-awareness; managers do not need to make painstaking efforts.
Managers shou... | Managers should motivate organizational members to work spontaneously. | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
Where are the main producing areas of zircon?
===Choices
North Africa and Middle East
Central America and Caribbean
South America
Pacific Islands and New Zealand
Australia
Western Europe and Scandinavia
Southeast Asia and South Asia
North America ... | Southeast Asia and South Asia | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
Which of the following expenses are considered as measure costs?
===Choices
Joint Trial Operation Fee
Administrative Support and Processing Fee
Secondary Material Handling
Equipment Transportation and Miscellaneous Fees
Personnel Training Expense ... | Secondary Material Handling | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
The formation of ice is started in a lake with water at $ 0^0C $, When the atmospheric temperature is = $ 10C $ If time taken for $1 cm$ of ice to be formed is $7$ hours, the time taken for the thickness of ice to increase from $ 1 cm$ to $2 cm $ ... | more than $14$ hours | general_qa | 220 |
The following is a multiple choice question (with answers).
===Question
The activation energy $E_{a}$ for a certain gas-phase reaction is $163 \ \ \mathrm{kJ} \ \cdot\ \mathrm{mol}^{-1}$, and the rate constant at $390 \ \ \mathrm{K}$ is $k=2.37 \times 10^{-2} \ \mathrm{dm}^{3} \cdot\ \mathrm{mol}^{-1} \cdot\ \mathrm{s}... | $$
0. 8 5 8 \ \mathrm{d m}^{3} \cdot\mathrm{m o l}^{-1} \cdot\mathrm{s}^{-1}
$$ | general_qa | 560 |
The following is a multiple choice question (with answers).
===Question
Percussion sounds for large cavities within the lungs, pneumothorax, and pneumoperitoneum are _______.
===Choices
hollow
resonant
vibrant
tympanic
staccato
dull
hyperresonant
airy
muffled
sonorous | tympanic | general_qa | 77 |
The following is a multiple choice question (with answers).
===Question
The standard reduction potential at $25^{\circ} C$ of the reaction $2H_2O + 2e^{-} \rightleftharpoons H_2 + 2\overset{\ominus}{O}H$ is -0.8277 V. The equilibrium constant for the reaction $2H_2O \rightleftharpoons H_3O^{\oplus} +\, \overset{\ominus... | $$K_w = 9.35\, \times\, 10^{-15}$$ | general_qa | 348 |
The following is a multiple choice question (with answers).
===Question
To excite a hydrogen atom in its ground state to emit visible spectral lines, what is the minimum energy that must be supplied to the hydrogen atom?
===Choices
$7.87$ eV
$6.92$ eV
$9.41$ eV
$1.89$ eV
$8.23$ eV
$13.56$ eV
$10.20$ eV
$1.51$ eV
$12.0... | $12.09$ eV | general_qa | 140 |
The following is a multiple choice question (with answers).
===Question
In geophysical exploration, the interpretation of gravity anomalies requires consideration of differences in crustal density. Which of the following is the most likely factor causing gravity anomalies?
===Choices
Alteration in atmospheric pressure... | Rise of magma chambers | general_qa | 92 |
The following is a multiple choice question (with answers).
===Question
Minimum energy of proton to ionize He+ ion (which is in ground state and is at rest) is $(consider\,\, mass\, m_{He+} = 4 m_p)$
===Choices
70.4 eV
54.4 eV
76.8 eV
102 eV
51.2 eV
108.8 eV
72 eV
136 eV
68 eV
52.4 eV | 54.4 eV | general_qa | 123 |
The following is a multiple choice question (with answers).
===Question
Among all levels of blood vessels, the most densely distributed sympathetic vasoconstrictor fibers are ( ).
===Choices
Small capillaries
Microartery
Large arterioles
Large artery
Large veins
Tiny arterioles
Peripheral venule
Microveins
Capillary a... | Microartery | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
Which of the following measures is a trade protectionism measure that is absolutely prohibited by WTO rules?
===Choices
Export taxes
Anti-dumping
Special safeguard measures
Countervailing measures
Export subsidies
Tariff-rate quotas
Voluntary expo... | Gray area measures | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
Which of the following is not altered by rifling a gun?
===Choices
Reduces the accuracy of the bullet
Reduces the recoil of the gun
Reduces the velocity of the bullet
Improves greater power of penetration of bullet
Impas gyroscopic stability of bu... | Decreases the smoke from the barrel | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
Determine a definite integral that represents the region common to $r = 3 \cdot \cos\left(\theta\right)$ and $r = 3 \cdot \sin\left(\theta\right)$.
===Choices
9\cdot\int_0^{\frac{\pi}{4}}\sin\left(2\theta\right)\cos\left(\theta\right)d\theta
9\cdo... | 9\cdot\int_0^{\frac{\pi}{4}}\sin\left(\theta\right)^2d\theta | general_qa | 383 |
The following is a multiple choice question (with answers).
===Question
The vertical lines commonly used to determine the lower limits of the lungs are the midclavicular line, the midaxillary line, and the ______ line as reference markers.
===Choices
costal
vertebral
thoracic
subclavian
umbilical
cervical
pelvic
scapu... | scapular | general_qa | 86 |
The following is a multiple choice question (with answers).
===Question
In engineering, convective heat transfer refers to the process of heat transfer between () and () when a fluid flows over a surface
===Choices
A solid, solid body
Fluid, a surface
Solid object, fluid layer
Liquid body, material boundary
Gas, solid... | Fluid, a surface | general_qa | 95 |
The following is a multiple choice question (with answers).
===Question
What is used to measure the accuracy of distance measurements?
===Choices
Linear approximation
Linear distortion
Absolute scale
Relative scale
Relative error
Linear error
Relative uncertainty
Absolute variance
Absolute uncertainty
Absolute deviati... | Relative error | general_qa | 57 |
The following is a multiple choice question (with answers).
===Question
The average binding energy per nucleon of a deuterium nucleus is 1.11 MeV, and for a helium nucleus, it is 7.07 MeV. The energy released by the reaction $^{2}H+ ^{2}H→^{4}He$ is____.
===Choices
$$
24.54 \mathrm{MeV}
$$
$$
26.11 \mathrm{MeV}
$$
$$
... | $$
2 3. 8 4 \mathrm{M e V}
$$ | general_qa | 234 |
The following is a multiple choice question (with answers).
===Question
The locus of a point which moves such that its distance from $(3,2)$ is twice its distance from the line $2x-3y+1=0$ is a
===Choices
circle
hyperbola
rectangular hyperbola
parabola
ellipse | parabola | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
Find the magnitude of $\begin{aligned}\sqrt{\sqrt[3]{5}-\sqrt[3]{4}}\:\end{aligned}$ is ().
===Choices
$\frac{1}{3}(\sqrt[3]{7}\:+\:\sqrt[3]{14}\:-\:\sqrt[3]{49}\:)$
$\frac{1}{3}(\sqrt[3]{2}\:+\:\sqrt[3]{20}\:-\:\sqrt[3]{25}\:)$
$\frac{1}{3}(\sqrt... | $\frac{1}{3}(\sqrt[3]{2}\:+\:\sqrt[3]{20}\:-\:\sqrt[3]{25}\:)$ | general_qa | 415 |
The following is a multiple choice question (with answers).
===Question
An $EM$ wave from air centres a medium. The electric fields are $\overset{E_{1}}=E_{01}\hat{x}\cos{\left[2\pi v\left(\cfrac{z}{c}-t\right)\right]}$ in air and $\overset{E_{1}}=E_{02}\hat{x}\cos{[k(2z-ct)]}$ in medium, where the wave number $k$ and ... | $$\cfrac{\epsilon_{r_{1}}}{\epsilon_{r_{2}}}=2$$ | general_qa | 380 |
The following is a multiple choice question (with answers).
===Question
When was the first International Printmaking and Drawing Biennale of the Republic of China held?
===Choices
1981
1982
1984
1987
1980
1989
1983
1985
1986
1988 | 1983 | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
If one mole of an ideal gas $\displaystyle \left ( \gamma =\frac{4}{3} \right )$ is expanded reversibly and adiabatically from 800 K to 200 K, which of the following statement's are correct ?
===Choices
ratio of final pressure to initial pressure ... | ratio of final pressure to initial pressure is $\displaystyle \frac{1}{256}$ | general_qa | 254 |
The following is a multiple choice question (with answers).
===Question
The monitoring related to the task requires carrying the monitoring instruments as follows:
===Choices
Personal dosimeter, direct-reading dosimeter, personal temperature alarm device
Personal thermometer, direct-reading thermometer, personal dose ... | Personal dosimeter, direct-reading dosimeter, personal dose alarm device | general_qa | 152 |
The following is a multiple choice question (with answers).
===Question
How many integers $n$ between $0$ and $2006$ inclusively, satisfy the condition that $3$ divides
$$$n + \left\lfloor \frac{n}{3}\right\rfloor + \left\lfloor \frac{n}{9}\right\rfloor + \left\lfloor \frac{n}{27}\right\rfloor?$$$
===Choices
667
668
6... | 669 | general_qa | 139 |
The following is a multiple choice question (with answers).
===Question
In high-speed flight, if the angle of attack of the aircraft is 12 degrees and the airflow velocity is 250 meters per second, what is the lift coefficient?
===Choices
2.4
1.4
2.0
2.6
1.0
2.2
1.2
1.8
0.8
1.6 | 1.2 | general_qa | 93 |
The following is a multiple choice question (with answers).
===Question
In Windows, the functions of the Search submenu in the Start menu include:
①Find folders and files
②Find the computer on the network
③Find files on the network
④Find folders, files, etc., for a certain period of time
What is the correct choice?
==... | ①②③④ | general_qa | 127 |
The following is a multiple choice question (with answers).
===Question
Give the surface charge penetration depth for the following polymer materials: polycarbonate, polyimide, polyamide 66, polystyrene, polyvinyl chloride, polytetrafluoroethylene (nm)
===Choices
46,20,52,42,48,12
46,20,52,42,47,13
46,20,52,42,48,11
4... | 46,20,52,42,48,13 | general_qa | 241 |
The following is a multiple choice question (with answers).
===Question
The number X of major traffic accidents that occur in a certain area in a month follows the following distribution: P(X=0)=0.301, P(X=1)=0.362, P(X=2)=0.216, P(X=3)=0.087, P(X=4)=0.026, P(X=5)=0.006, P(X=6)=0.002. What is the average number of majo... | E(X)=1.201 | general_qa | 221 |
The following is a multiple choice question (with answers).
===Question
"Breccia pipes" are commonly associated with which type of mineral deposit?
===Choices
Iron
Zinc
Uranium
Copper
Gold
Lead
Platinum
Silver
Nickel
Tin | Gold | general_qa | 59 |
The following is a multiple choice question (with answers).
===Question
What chart can be used to compare the incidence rates of several infectious diseases in a certain place across two different years?
===Choices
Circle Diagram
Parallel Bar Chart
Uniform Ratio Bar Chart
Multiple Line Graph
Integrated Circle Diagram
... | Duplex bar chart | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
A small spherical monoatomic ideal gas bubble $\left(\gamma =\dfrac{5}{3}\right)$ is trapped inside a liquid of density $\rho_l$(see figure). Assume that the bubble does not exchange any heat with the liquid. The bubble contains n moles of gas. The... | $$\dfrac{\rho_lnRgT_0}{(P_0+\rho_lgH)^{2/5}[P_0+\rho_lg(H-y)]^{3/5}}$$ | general_qa | 491 |
The following is a multiple choice question (with answers).
===Question
What script was the Code of Hammurabi originally written in?
===Choices
Sumerian script
Sumerian cuneiform
Hieroglyphics
Babylonian cuneiform script
Sumerian cuneiform script
Babylonian script
Akkadian
Cuneiform
Babylonian cuneiform
Sumerian | Cuneiform | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
In the two river basins, Alpha and Beta, except that the slope of the Alpha basin is steeper than that of Beta, all other underlying surface factors and meteorological factors are the same, then the peak discharge at the outlet cross-section of the... | High flood peak flow, peak occurrence time is early | general_qa | 190 |
The following is a multiple choice question (with answers).
===Question
Marx's idea that religion shifts workers' focus to the afterlife instead of motivating them to revolt against their earthly oppressors is encapsulated in his statement ________.
===Choices
"If people believe the situation is real, it is real in th... | "Religion is ... the opium of the people." | general_qa | 120 |
The following is a multiple choice question (with answers).
===Question
When observing the phosphor screen of an image tube through an eyepiece, the angular resolution of the human eye for the target is $6′$. If the resolution of the image tube's cathode is $m=30 lp/mm$ and the magnification of the image tube is $β=1.5... | 28.65mm | general_qa | 164 |
The following is a multiple choice question (with answers).
===Question
Hot water at a temperature of 333 K flows at a uniform speed of 2 m/s over a cold flat plate surface with a constant wall temperature of 293 $\mathrm{K}$. Calculate the velocity boundary layer thickness and temperature boundary layer thickness at a... | $$
= 9 4. 7 \%
$$ | general_qa | 269 |
The following is a multiple choice question (with answers).
===Question
If the production of all goods increases by 10% and all prices decrease by 10%, which of the following will occur?
===Choices
real gdp remains unchanged, while nominal gdp decreases by 10%.
real gdp remains unchanged, while nominal gdp remains unc... | real gdp increases by 10%, while nominal gdp remains unchanged. | general_qa | 210 |
The following is a multiple choice question (with answers).
===Question
Indications for medical abortion include ().
===Choices
intrauterine pregnancy ≤ 65 days gestation
intrauterine pregnancy ≤ 42 days gestation
intrauterine pregnancy ≤ 49 days gestation
intrauterine pregnancy ≤ 72 days gestation
intrauterine pregna... | intrauterine pregnancy ≤ 49 days gestation | general_qa | 149 |
The following is a multiple choice question (with answers).
===Question
A food's INQ value for protein being greater than 1 indicates ( ).
===Choices
The supply of food protein is lower than the energy supply.
The supply of food protein exceeds the supply of energy.
The supply of dietary protein is lower than what the... | The supply of food protein exceeds the supply of energy. | general_qa | 145 |
The following is a multiple choice question (with answers).
===Question
A tank filled with water has a diameter of 1 meter and a height of 3 meters. Water is being discharged through a small hole at the bottom of the tank. The diameter of the hole is 4 centimeters. The measured relationship between the flow velocity \(... | $$
1 8 9. 8 s
$$ | general_qa | 276 |
The following is a multiple choice question (with answers).
===Question
Given that after 5 hours, the liquid level drops from 0.011 m to 0.021 m from the top. Under experimental conditions, the density of acetone is 790 kg/m³, and the saturated vapor pressure is 23.98 kPa. Calculate the diffusion coefficient of acetone... | $$
1. \ 0 7 \times1 0^{-5} \ {\bf m}^{2} / {\bf s}
$$ | general_qa | 431 |
The following is a multiple choice question (with answers).
===Question
At high altitude a body at rest explodes into two fragments of equal masses, with one fragment receiving horizontal velocity of $10\ ms^{-1}$. Time taken by the two radius vectors connecting to point of explosion to both the fragments to make $90^{... | $$1 s$$ | general_qa | 112 |
The following is a multiple choice question (with answers).
===Question
A protostar on the Hayashi track evolves from a temperature of 3500 K and a luminosity 5000 times that of the Sun to a temperature of 5000 $\mathrm{K}$ and a luminosity of 3 solar units. What is the protostar's radius (b) at the end of the evolutio... | 2.3 times the radius of the Sun | general_qa | 192 |
The following is a multiple choice question (with answers).
===Question
Who was the first person to build a Gregorian reflecting telescope?
===Choices
John Hadley
Isaac Newton
James Gregory
Robert Hooke
John Flamsteed
Galileo Galilei | Robert Hooke | general_qa | 55 |
The following is a multiple choice question (with answers).
===Question
In the construction of concrete gravity dam, when the size of the casting bin block and the thickness of the layer are determined, and the problem of insufficient transportation equipment capacity occurs, the usual practice is to ().
===Choices
Ex... | Change from flat layer pouring to inclined layer pouring or step pouring. | general_qa | 165 |
The following is a multiple choice question (with answers).
===Question
A variable external resistor has resistance given by $R=R_0T^2+R_1$. It is connected to a battery having internal resistance 'r' and EMF '$ arepsilon$'. At what time is the maximum power delivered to the external resistance if $R_1 < r$?
===Choice... | $$\sqrt {\cfrac {R_{1}-r}{R_{0}}}$$ | general_qa | 244 |
The following is a multiple choice question (with answers).
===Question
What are the economic theories and philosophical foundations of David Ricardo?
===Choices
Kant's Theory of Enlightenment
Bacon's Materialism
Locke's Social Contract
Hume's Theory of Human Nature
Bentham's Utilitarianism
Hobbes' State of Nature
Des... | Bentham's Utilitarianism | general_qa | 99 |
The following is a multiple choice question (with answers).
===Question
The method of dividing the central and local revenues according to tax types to meet expenditure needs is ( ).
===Choices
absolute division process
proportional distribution method
autonomous allotment approach
income classification division
fixed... | tax sharing system | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
To connect a light bulb labeled "120 V, 60 W" in series with a pure inductance to a 50 Hz, 220 V power supply, what should the self-inductance coefficient of the pure inductor be to ensure the bulb operates normally?
===Choices
$$
1. 1 7 \mathrm{~... | $$
1. 1 7 \mathrm{~ H}
$$ | general_qa | 237 |
The following is a multiple choice question (with answers).
===Question
Determine the maximum theoretical height to which water at 150°F may be raised by a vacuum at sea level.
===Choices
34.59 ft
29.85 ft
18.95 ft
50 ft
75.5 ft
61.2 ft
26.03 ft
42.67 ft
55.16 ft
8.56 ft | 26.03 ft | general_qa | 105 |
The following is a multiple choice question (with answers).
===Question
Where does the evaluation of Zhang Xiaoxiang, 'When it comes to entrusting objects with emotions, playing with the brush and ink, blending the legacy of the Yuefu, and casting them into exquisite words at the tip of the pen, there were no predecess... | Chen Yingxing's Preface to Elegant Poems by Mr. Yuhu | general_qa | 134 |
The following is a multiple choice question (with answers).
===Question
What key signature was "I Just Want to Be Where You Are" by Don Moen composed in?
===Choices
D Minor
E Minor
A Minor
D Major
C Major
G Major
B Major
F Major
E Major
A Major | G Major | general_qa | 67 |
The following is a multiple choice question (with answers).
===Question
In a homogeneous medium with a permittivity of \( e\) and permeability of $\mu$, there is a monochromatic plane electromagnetic wave propagating along the $x$. It is known that its electric field intensity is $E = E_0 \cos(kx - \omega t)$, and $\om... | $H = \frac{1}{\omega \mu} k \times E$ | general_qa | 278 |
The following is a multiple choice question (with answers).
===Question
Compute the integral:
$$
\int x^{-4} \cdot \left(3+x^2\right)^{\frac{ 1 }{ 2 }} \, dx
$$
===Choices
C - \frac{1}{7} \cdot \left(1 + \frac{3}{x^2}\right) \cdot \sqrt{1 + \frac{3}{x^2}}
C - \frac{1}{18} \cdot \left(1 + \frac{3}{x^2}\right) \cdot \sq... | C - \frac{1}{9} \cdot \left(1 + \frac{3}{x^2}\right) \cdot \sqrt{1 + \frac{3}{x^2}} | general_qa | 492 |
The following is a multiple choice question (with answers).
===Question
In a common emitter transistor amplifier circuit $\beta=100$. Input resistance $R_{1}=1k\Omega$ out put resistance $R_{2}=10k\Omega$. The power gain is given by
===Choices
10^ {8}
10^ {2}
$$10^ {7}$$
$$10^ {3}$$
$$10^ {5}$$
$$10^ {9}$$
$$10^ {6}$$... | $$10^ {3}$$ | general_qa | 127 |
The following is a multiple choice question (with answers).
===Question
How many operators does the oscillator of the Yamaha SHS-10 (1987) have?
===Choices
1
6
7
2
8
4
9
5
3
10 | 2 | general_qa | 59 |
The following is a multiple choice question (with answers).
===Question
The discovery of the element argon by Lord Rayleigh and Sir William Ramsay had its origins in Rayleigh's measurements of the density of nitrogen with an eye toward accurate determination of its molar mass. Rayleigh prepared some samples of nitrogen... | 0.011 | general_qa | 285 |
The following is a multiple choice question (with answers).
===Question
The gear pump consists of two close-meshing gear wheels which rotate in opposite directions. Fluid is forced through the pump as it becomes trapped between the rotating gear teeth and the housing and so is transferred from the inlet port to be disc... | 15, 2400 | general_qa | 187 |
The following is a multiple choice question (with answers).
===Question
The given intergral $\int_{-\infty}^{\infty} \operatorname{s i n} 2 t \delta^{\prime} \big( t-1 \big) \mathrm{d} t$ is ( ).
===Choices
$- 3 \mathrm{c o s} 2$
$- 1 \mathrm{c o s} 2$
$- 2 \mathrm{c o s} 2$
$4 \mathrm{c o s} 2$
$2 \mathrm{c o s} 3$
$... | $- 2 \mathrm{c o s} 2$ | general_qa | 183 |
The following is a multiple choice question (with answers).
===Question
Which period did the earliest specialized work on craftsmanship in China, "Kao Gong Ji" appear?
===Choices
Song Dynasty
Zhou Dynasty
Han Dynasty
Three Kingdoms Period
Warring States Period
Sui Dynasty
Qing Dynasty
Ming Dynasty
Yuan Dynasty
Tang Dy... | Warring States Period | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
Which university's researcher proposed the high-voltage direct current transmission technology based on voltage-source converters in 1990?
===Choices
University of Montreal
University of Toronto
University of Alberta
University of Ottawa
Universit... | McGill University | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
Definition of Latent Infection: ( ).
===Choices
Host contains pathogens, and symptoms constantly progress regardless of invasive development stages.
Host harbors pathogens while symptoms erupt sporadically unrelated to developmental stages.
Pathog... | Pathogens remain latent after invading the host and do not immediately show symptoms. Symptoms manifest only under suitable conditions or at specific developmental stages. | general_qa | 195 |
The following is a multiple choice question (with answers).
===Question
There is a type of pumpkin that weighs an average of 2.5 kg, and another variety that weighs an average of 1 kg. The hybrid offspring (F1) of these two varieties have an average weight of 1.75 kg. When F1 are crossbred, they produce 200 F2, with we... | 3 | general_qa | 158 |
The following is a multiple choice question (with answers).
===Question
Let $A$ be a square matrix of third order, and $\mathrm{d e t} A={\frac{1} {2}}$ , what is the value of $\operatorname* {d e t} \! \left( {\frac{1} {3}} A^{-1} \!-\! 1 0 A^{*} \right) \!$ ?
===Choices
$$
2 \times( \frac{1 4} {7} )^{3}
$$
$$
- 2 \t... | $$
- 2 \times( \frac{1 4} {3} )^{3}
$$ | general_qa | 328 |
The following is a multiple choice question (with answers).
===Question
For which metal $'M'$ complex
$[M(n^{1}-C_{5}H_{5})(n^{3}-C_{5}H_{5})(n^{5}-C_{5}H_{5})]$
follows EAN rule ($n^{x}$, where x=Hapticity=number of atoms participtate in donation)
===Choices
Pt
Ru
$$Co$$
$$Zn$$
$$Cd$$
$$Cu$$
$$Ag$$
$$Ni$$
$$Fe$$ | $$Zn$$ | general_qa | 126 |
The following is a multiple choice question (with answers).
===Question
A shadow price refers to ( ).
===Choices
Economic weight of added elements
Basic solution to the dual problem
Inspection number
Economic value of surplus items
Enslaved variables in the model
Expected shadow of the system
Optimal solution to the d... | Optimal solution to the dual problem | general_qa | 90 |
The following is a multiple choice question (with answers).
===Question
Given the Z-transform of a signal is \(X(z)=\frac{-3z^{-1}}{2-5z^{-1}+2z^{-2}}\), for \(|z|>2\), the right-sided sequence \(x[n]\) is
===Choices
\(\left[\left(\frac{1}{2}\right)^{n+1}-2^n\right]u[n] \)
\(\left[2^n-\left(\frac{1}{2}\right)^{n+2}\ri... | \(\left[\left(\frac{1}{2}\right)^n-2^n\right]u[n]\) | general_qa | 352 |
The following is a multiple choice question (with answers).
===Question
In which country was the world's first full face transplant surgery performed?
===Choices
Italy
Portugal
France
United States
Spain
Germany
Brazil | Spain | general_qa | 46 |
The following is a multiple choice question (with answers).
===Question
If there is an angle between the perforation azimuth and the horizontal maximum principal stress direction, how will hydraulic fractures generally extend?
===Choices
To propagate first following the direction of perforation, then the azimuth of ma... | To extend first along the perforation direction and then along the direction of maximum horizontal stress | general_qa | 183 |
The following is a multiple choice question (with answers).
===Question
Using AIBN as the initiator (concentration of $0.1 \ \mathrm{mol} \cdot \mathrm{L}^{-1}$), the polymerization of styrene was conducted at 40°C in a dilatometer. DPPH (1,1-diphenyl-2-picrylhydrazyl) was used as the inhibitor, and the experimental re... | $$
0. 8 1
$$ | general_qa | 321 |
The following is a multiple choice question (with answers).
===Question
What is the reference plane currently used for water levels in China?
===Choices
Wusong Base
ChangJiang Base
ZhuJiang Base
XinJiang Base
Dagu Base
BeiHai Base
HuangHai Base
NanHai Base
DongHai Base
LiaoHe Base | HuangHai Base | general_qa | 84 |
The following is a multiple choice question (with answers).
===Question
On what day, month, and year was the actor and singer Corbin Bleu's portrait added to the Broadway Wall of Fame at Tony's Di Napoli restaurant in New York?
===Choices
March 16, 2012
March 16, 2015
March 16, 2008
March 16, 2014
March 16, 2011
March... | March 16, 2010 | general_qa | 162 |
The following is a multiple choice question (with answers).
===Question
A sleeve-coupling is used on a shaft 1(1/2) in. in diameter, delivering a torque of 500 lbs.-in. Calculate the diameter of the pin required to hold the coupling if the design stress for the pin material in shear is 15,000 psi.
===Choices
0.168 in.... | 0.168 in. | general_qa | 152 |
The following is a multiple choice question (with answers).
===Question
Expand the two-body operator $\mathrm{e}^{\mathrm{i} \alpha\sigma_{1} \cdot\sigma_{2}}$ for two spin-$\frac{1}{2}$ particles.
===Choices
$$
\mathrm{e}^{-\mathrm{i} \alpha} \left[ \operatorname{c o s} 2 \alpha+\frac{\mathrm{i}} {2} \operatorname{s ... | $$
\mathrm{e}^{-\mathrm{i} \alpha} \left[ \operatorname{c o s} 2 \alpha+\frac{\mathrm{i}} {2} \operatorname{s i n} 2 \alpha\left( 1+\sigma_{1} \cdot\sigma_{2} \right) \right]
$$ | general_qa | 746 |
The following is a multiple choice question (with answers).
===Question
According to "Bencao Gangmu" (Compendium of Materia Medica), the herbal medicine that has the effect of "resolving all toxins, regulating the middle, opening the appetite, and warming and tonifying the vital energy" is ( ).
===Choices
Angelica
Ast... | Licorice | general_qa | 106 |
The following is a multiple choice question (with answers).
===Question
What character did Julie Depardieu play in the TV movie "La Passion du Docteur Bergh"?
===Choices
Valerie Bergh
Martine Bergh
Marie Bergh
Nathalie Bergh
Valerie Letechin
Claire Bergh
Martine Letechin
Isabelle Bergh
Sophie Bergh
Anne Bergh | Valerie Letechin | general_qa | 90 |
The following is a multiple choice question (with answers).
===Question
The differences in divergent thinking abilities mainly manifest as differences in why( ).
===Choices
Analysis
Memory
Creativity
Intelligence
Knowledge
Logic
Perception
Understanding
Reasoning
Imagination | Imagination | general_qa | 56 |
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