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 depth of the leapfrog layer for CaCO₃ saturation depends on which factor?
===Choices
surface area of CaCO₃
melting point of CaCO₃
crystal type of CaCO₃
molecular weight of CaCO₃
solution pH for CaCO₃
quantity measure of CaCO₃
purity grade of C... | crystal type of CaCO₃ | general_qa | 119 |
The following is a multiple choice question (with answers).
===Question
The motor transport production plan consists of four parts: (), (), () and ().
===Choices
Traffic volume plan; Vehicle planning; Vehicle operation plan; Vehicle operation plan
Vehicle arrangement chart; Driver scheduling; Traffic control system; R... | Traffic volume plan; Vehicle planning; Vehicle operation plan; Vehicle operation plan | general_qa | 173 |
The following is a multiple choice question (with answers).
===Question
The 'Pingfa Atlas' is applicable to the design of construction drawings for cast-in-place concrete frame, shear wall, frame-shear wall, and frame-supported shear wall main structures in regions with non-seismic and seismic fortification intensity o... | 6, 7, 8, 9 | general_qa | 184 |
The following is a multiple choice question (with answers).
===Question
The enzyme Dam methylase in E. coli is able to methylate the A in the GATC sequence in its DNA; which of the following processes is associated with the effects of this modification?
===Choices
SeqA protein inhibits methylation of GATC by Dam methy... | SeqA protein inhibits methylation of GATC by Dam methyltransferase | general_qa | 194 |
The following is a multiple choice question (with answers).
===Question
About the role of map annotations, "( )" is correct.
===Choices
Map annotations can specify texture and density.
Map annotations can dictate size and contour.
Map annotations can indicate quantity and quality.
Map annotations can express height an... | Map annotations can indicate quantity and quality. | general_qa | 109 |
The following is a multiple choice question (with answers).
===Question
How old was Hong Kong social activist Elsie Tu when she married her second husband?
===Choices
77.
69.
70.
78.
76.
75.
74.
72.
71.
73. | 71. | general_qa | 64 |
The following is a multiple choice question (with answers).
===Question
Introduce flue gas at a temperature of 200°C and a flow rate of 1.6 $m^3/s$ into a settling chamber for separation with dimensions of 10 (length) $\times$ 2 (width) $\times$ 2 (height) $({m}^{3})$. Given a dust density of 4880 $kg/{m}^{3}$, find th... | $2 7. 9 7 \mu\mathrm{m}$ | general_qa | 290 |
The following is a multiple choice question (with answers).
===Question
In which year did Ratan Parimoo (an Indian art historian from Kashmir) get a Cultural Scholarship for Painting from the Government of India?
===Choices
1956
1954
1952
1951
1953
1960
1958
1957
1955
1959 | 1957 | general_qa | 95 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the length of the longest chain of subgroups in the symmetric group S_n, where S_n denotes the group of all permutations on n elements. Given the input x_list (a series of values): [61, 62, 63, ... | [86, 87, 88, 94, 95, 96, 97, 99, 100, 101] | general_qa | 534 |
The following is a multiple choice question (with answers).
===Question
What are the maximum and minimum possible acoustic intensities of two completely coherent one-dimensional plane waves that propagate in the same direction and have an acoustic intensity of 20dB?
===Choices
23dB and 0dB
80dB and 0dB
80dB and 40dB
2... | 26dB and -dB | general_qa | 133 |
The following is a multiple choice question (with answers).
===Question
Kirkwood gaps are observed in the main asteroid belt including at the position(s) where:
===Choices
asteroids would orbit with a period half that of Jupiter
asteroids would orbit with a period three times that of Mars
asteroids would orbit with a ... | asteroids would orbit with a period half that of Jupiter | general_qa | 149 |
The following is a multiple choice question (with answers).
===Question
What is the main function of aerodynamic thrust augmentation during missile launch?
===Choices
Enhance the missile's fuel efficiency
Decrease the temperature around the missile
Decrease the drag force on the missile
Improving flight stability
Incr... | Increase the speed of the missiles | general_qa | 104 |
The following is a multiple choice question (with answers).
===Question
The essence of the equilibrium state is the system (), and between the system and the environment ().
===Choices
Internal thermal stability, heat imbalance
External mechanical imbalance, energy balance
Internal thermal
Internal mechanical balance,... | Internal mechanical balance, heat balance | general_qa | 102 |
The following is a multiple choice question (with answers).
===Question
A concave mirror with its optic axis vertical and mirror facing upward is placed at the bottom of the water tank. The radius of curvature of mirror is $40\ cm$ and refractive index for water $\mu =4/3$. The tank is $20\ cm$ deep and if a bird is fl... | $$3.75\ cm$$ | general_qa | 185 |
The following is a multiple choice question (with answers).
===Question
The syndrome treated by Ephedra, Forsythia, and Red Bean Decoction combined with Five-Flavor Detoxifying Drink for edema is _____.
===Choices
Stagnated Heat-Water
Damp-Heat Convergence
Cold-Damp Encumbrance
Damp-Toxin Invading
Stagnated Phlegm-Wat... | Damp-Toxin Invading | general_qa | 122 |
The following is a multiple choice question (with answers).
===Question
Figure shown as block of mass m resting on a smooth horizontal ground attached to one end of a spring of force constant k in natural length. If another block of same mass and moving with a velocity u toward right is placed on the block which stick ... | $$A = \sqrt{\dfrac{um}{2k}} , t = \pi \sqrt{\dfrac{2m}{k}}$$ | general_qa | 383 |
The following is a multiple choice question (with answers).
===Question
Who was the first person to clearly propose the concept of balance of payments and conduct research on it?
===Choices
Bentham
Malthus
Friedman
Fisher
Colbert
Thomas
Ricardo
Smith
Keynes
Marshall | Colbert | general_qa | 68 |
The following is a multiple choice question (with answers).
===Question
According to the 'Convention on the Law Applicable to Trusts and on Their Recognition,' if the parties have not chosen the applicable law, the law most closely connected to the trust should consider _____.
===Choices
The location of the trust prop... | The location of the trust property | general_qa | 125 |
The following is a multiple choice question (with answers).
===Question
Mutual inductance of a system of two thin coaxial conducting loops of radius 0.1 m, and then center separated by distance 10 m is (Take $\mu^{2} = 10$)
===Choices
$2 \times 10^{-18}$ H
$2 \times 10^{-14}$ H
$2 \times 10^{-15}$ H
$2 \times 10^{-20}... | $2 \times 10^{-20}$ H | general_qa | 197 |
The following is a multiple choice question (with answers).
===Question
Which type of rays can destroy the structure of proteins?
===Choices
Visible light
X-rays
Infrared rays
Ultraviolet rays
None of the other choices
Gamma rays
Microwaves | Ultraviolet rays | general_qa | 55 |
The following is a multiple choice question (with answers).
===Question
At 298K, the ionic mobility of $H^{+}$ is $3.61 \times 10^{-8} m^{2} \cdot V^{-1} \cdot s^{-1}$. If the viscosity of water at the same temperature is $8.94 \times 10^{-3} P$, what is the effective radius r of $H^{+}$?
===Choices
$$
2. 6 3 \times1 ... | $$
2. 6 3 \times1 0^{-9} \mathrm{~ c m}
$$ | general_qa | 352 |
The following is a multiple choice question (with answers).
===Question
A point object is situated at a distance of 36 cm from the centre of the sphere of radius 12 cm and refractive index 1.5. Locate the position of the image due to refraction through sphere.
===Choices
18 cm from the surface
20 cm from the centre
12... | 18 cm from the centre. | general_qa | 134 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements is(are) correct?[Atomic weight of $Bi=209$ g, the molecular weight of $Bi(NO_3)_3. 5H_2O=485$ g/mol]
===Choices
The volume of $NO$ gas produced at STP ($1$ bar, $298$ K) is $0.227$ L.
$Bi+4HNO_3+3H_2O\rightarrow B... | The volume of $NO$ gas produced at STP ($1$ bar, $298$ K) is $0.247$ L. | general_qa | 360 |
The following is a multiple choice question (with answers).
===Question
How many mg of oxygen are needed to oxidize 1 mg of NH4+-N to NO3-N?
===Choices
4.59
4.55
4.57
4.50
4.52
4.56
4.63
4.65
4.60
4.58 | 4.57 | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
Article that gives authority to apprehend suspects is ().
===Choices
Article 12
Article 15
Article 8
Article 9
Article 11
Article 7
Article 14
Article 10
Article 16
Article 13 | Article 7 | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
$A$ and $B$ are two isolated spheres kept in close proximity so that they can exchange energy by radiation. The two spheres have identical physical dimensions but the surface of $A$ behaves like a perfectly black body while the surface of $B$ refle... | If they are in thermal equilibrium and exchange equal amounts of radiation per second, they will be at the same absolute temperature, $T_A = T_B$. | general_qa | 460 |
The following is a multiple choice question (with answers).
===Question
At what temperature will water with a boiling point of 100°C and chloroform with a boiling point of 60°C, have the same vapor pressure. The heats of vaporization for water and chloroform are 12.0 kcal/mole and 7.0 kcal/mole respec-tively .
===Choi... | 448K | general_qa | 134 |
The following is a multiple choice question (with answers).
===Question
Regarding administrative management methods, the following statements are correct:
I. The essence of administrative management methods is to carry out work through official authority
II. The mandatory nature of administrative management clearly def... | I,III,IV,V | general_qa | 162 |
The following is a multiple choice question (with answers).
===Question
The Aquilian Law was formulated to make up for the deficiencies of which document?
===Choices
The Code of Ur-Nammu (expanded edition)
The Code of Ur-Nammu
The Code of Ur-Nammu (original edition)
The Code of Hammurabi
The Code of Ur-Nammu (annotate... | The Twelve Tables | general_qa | 117 |
The following is a multiple choice question (with answers).
===Question
Pulsation below the xiphoid process is commonly seen in which of the following conditions?
===Choices
Right atrial diminishment
Constrictive pericarditis
Left ventricular enlargement
Pericardial effusion
Constrictive myocarditis
Pericardial constr... | Right ventricular enlargement | general_qa | 93 |
The following is a multiple choice question (with answers).
===Question
One important method for accurately measuring the lifetimes of multiply ionized atomic states is as follows: Use a laser beam tuned to the resonance wavelength of the ion under study to excite a given ion beam, and measure the radiation intensity o... | $$
\approx9. 6 \times1 0^{-9} ( \mathrm{s} )
$$ | general_qa | 412 |
The following is a multiple choice question (with answers).
===Question
Given \( y = \frac{1}{{1 + {x^2}}} \), then \( dy \) is ( ).
===Choices
\( rac{{2x}}{{1 + {x^2}}}dx \)
\( rac{{2x}}{{{{(1 + {x^2})}^2}}}dx \)
\(\frac{{-2x}}{{(1 + {x^2})^2}}dx \)
\frac{{2x}}{{{{(1 + {x^2})}^3}}}dx
\( rac{1}{{1 + {x^2}}}dx \)
\(... | \( -\frac{{2x}}{{{{(1 + {x^2})}^2}}}dx \) | general_qa | 253 |
The following is a multiple choice question (with answers).
===Question
To what series does the spectral lines of atomic hydrogen belong of its wave number is equal to the difference between the wave numbers of the following two lines of the Balmer series $486.1\ nm$ and $410.2\ nm$? What is the wavelength of this line... | Paschen, $\lambda=2.63\times 10^{-4}cm$ | general_qa | 274 |
The following is a multiple choice question (with answers).
===Question
The mass and radius of Miranda are $8 \times1 0^{1 9}$ kg and 236 km, respectively. What is the escape velocity from the surface of Miranda?
===Choices
$$
0. 4 2 2 \; \mathrm{k m} \; \mathrm{s}^{-1}.
$$
$$
0. 1 9 4 \; \mathrm{k m} \; \mathrm{s}^{-... | $$
0. 2 1 3 \; \mathrm{k m} \; \mathrm{s}^{-1}.
$$ | general_qa | 336 |
The following is a multiple choice question (with answers).
===Question
What are the characteristics of deciduous dentition before the age of 4?
===Choices
The teeth are evenly dispersed, without noticeable gaps, the crowns are symmetrical, the dentition curve is subtle, and the distal mesial surfaces of the bicuspid ... | The teeth are closely aligned, without gaps, the crowns are straight, the dentition curve is not obvious, and the distal mesial surfaces of the maxillary and mandibular second molar teeth are aligned with each other in a vertical plane | general_qa | 431 |
The following is a multiple choice question (with answers).
===Question
Which Indian agriculture is known as Golden Zest?
===Choices
Cinnamon Cultivation
Saffron Cultivation
Cumin Cultivation
Turmeric Processing
Turmeric Cultivation
Ginger Cultivation
Turmeric Cultivation with Enhanced Flavor
Cardamom Cultivation
Saff... | Saffron Cultivation | general_qa | 84 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is as follows: For a binary reflected Gray code, the (Hamming/Euclidean) distance between two subsequent points x and y is 1, in coordinate k. If y has a 1 in coordinate k and x has a 0, then (x,y)... | [-1, 4, 1, 2, -1, -3, 1, -2, -1, 5] | general_qa | 531 |
The following is a multiple choice question (with answers).
===Question
A rancher owned a 2,000-acre cattle ranch in a remote section of the state. For some time the rancher's cattle had been seized upon by roaming packs of wolves. In order to protect his livestock from these attacks, the rancher erected a fence around... | the cause-in-fact of the cowboy's death, but not the legal cause. | general_qa | 439 |
The following is a multiple choice question (with answers).
===Question
A circular disc is made to rotate in a horizontal plane about its centre at the rate of $2 \ rps$. The greatest distance of a coin placed on the disc from its centre so that it does not skid is ($\mu$ is coefficient of friction, $g=10ms^{-2}$):
==... | $$6.3\mu\ cm$$ | general_qa | 250 |
The following is a multiple choice question (with answers).
===Question
When comparing the energy released per nucleon in D-T fusion and uranium fission, the former is approximately is___.
===Choices
$$
7 times
$$
$$
5 times
$$
$$
6 times
$$
$$
3 times
$$
$$
10 times
$$
$$
4 times
$$
$$
1.5 times
$$
$$
9 times
$$
$$
2... | $$
4 times
$$ | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
The cell $Pt|H_2(g, \space0.1\space bar)|H^+(aq), \space pH = X || Cl^-(aq, \space 1\space M)|Hg_2Cl_2|Hg|Pt$,
has e.m.f. of $0.5755\space V$ at $25^{\small\circ}C$. The SOP of calomel electrode is $-0.28\space V$, then $pH$ of the solution will b... | $$5.5$$ | general_qa | 178 |
The following is a multiple choice question (with answers).
===Question
The vadose zone from top to bottom can be divided into the soil water zone, _____ and _____
===Choices
Dry stretch, wet band
Intermediate zone, capillary fringe
Saturated zone, permeable zone
Top stratum, underground reservoir
Upper belt, aquifer
... | Intermediate zone, capillary fringe | general_qa | 106 |
The following is a multiple choice question (with answers).
===Question
To prevent overflow or erosion of side ditches, the length of each section of trapezoidal side ditches in rainy areas should not exceed _____.
===Choices
250m
100m
320m
140m
300m
350m
180m
200m
150m
120m | 300m | general_qa | 97 |
The following is a multiple choice question (with answers).
===Question
A 10 month old child weighing 8kg has Bitot spots in both eyes. Which of the following is the most appropriate schedule to prescribe vitamin A to this child?
===Choices
1 lakh units IM on day 0, 14, with a 50,000 unit IM dose on day 1
1 lakh units... | 1 lakh units IM on day 0, 1 and 14 | general_qa | 277 |
The following is a multiple choice question (with answers).
===Question
HIV transmission is maximum during?
===Choices
During the first trimester of pregnancy
During antepartum period
Breast feeding
During induced labor
During the second trimester of pregnancy
During the postpartum period
During the third trimester of... | During vaginal delivery | general_qa | 91 |
The following is a multiple choice question (with answers).
===Question
Which Chinese constitutional scholar was awarded the 'Lifetime Achievement Award for the Development of Chinese Constitutional Law' in 2015?
===Choices
Lin Laifan
Han Dayuan
Zhang Qianfan
Wu Jialin
Qin Qianhong
Zhang Xiang
Wang Kai
Mo Jihong
Zhou ... | Wu Jialin | general_qa | 96 |
The following is a multiple choice question (with answers).
===Question
The general solution of the equation $y''+y= \sin x$ is
===Choices
$y= C_1 x \sin x + C_2 \cos x + \frac{x \cos x}{2}$
$y= C_1 \sin x + C_2 \cos x - \frac{x \sin x}{2}$
$y= C_1 x \sin x + C_2 \cos x + \frac{x \sin x}{2}$
$y= C_1 \sin x + C_2 \cos ... | $y= C_1 x \sin x + C_2 \cos x - \frac{x \cos x}{2}$ | general_qa | 243 |
The following is a multiple choice question (with answers).
===Question
A _______ refers to a supportive frame made from steel pipes or wood, sized according to the body shape of the mother animal. The frame is then covered with a layer of hide, burlap, synthetic leather, or other elastic and soft material.
===Choices... | false livestock stand | general_qa | 111 |
The following is a multiple choice question (with answers).
===Question
A 27-year-old woman, with regular menstrual cycles, is now 30 weeks amenorrheic. Two days ago, she experienced irregular lower abdominal pain, intermittent. Today, she has had a significant amount of clear vaginal discharge. Physical examination: u... | intravenous antibiotics and tocolytics | general_qa | 191 |
The following is a multiple choice question (with answers).
===Question
How should project sponsors organize community members to facilitate land preparation?
===Choices
Establish holiday celebrations or carnivals to extend leisure activities for community members.
Arrange special music concerts or movie nights to str... | Organize income-generating craft workshops or sporting events to provide informal meeting opportunities for community members. | general_qa | 190 |
The following is a multiple choice question (with answers).
===Question
The most common site of occurrence for esophageal cancer is ( ).
===Choices
esophagogastric junction
distal esophageal sphincter
middle gastric section
cervical esophagus
proximal gastric region
middle esophagus
upper esophagus
initial esophageal ... | middle esophagus | general_qa | 90 |
The following is a multiple choice question (with answers).
===Question
Consider the Hofmann ammonolysis reaction:If $R = {Me}_{3}C-$ ($t-butyl$), the correct order of basic character of the above amines in aqueous medium is :
===Choices
$$N{H}_{3} > 1 > 2 > 3$$
$$1 > N{H}_{3} > 2 > 3 $$
$$1 > N{H}_{3} > 3 > 2$$
$$1 >... | $$N{H}_{3} > 1 > 2 > 3$$ | general_qa | 215 |
The following is a multiple choice question (with answers).
===Question
What was the last book written by the famous journalist Liu Yilang before his death?
===Choices
Chiang Ching-kuo: A Biographical Examination
Chiang Ching-kuo: An Analytical Biography
Chiang Ching-kuo: A Detailed Biography
Chiang Ching-kuo: A Biogr... | Chiang Ching-kuo: A Critical Biography | general_qa | 162 |
The following is a multiple choice question (with answers).
===Question
A method of creative thinking where a problem that has been puzzling for a long time is suddenly solved in an unusual way due to certain triggering factors, refers to ___.
===Choices
Lateral Thinking Method
Inspiration Thinking Method
Analogical T... | Inspiration Thinking Method | general_qa | 104 |
The following is a multiple choice question (with answers).
===Question
A sealed vessel contains water upto height h = 3.5 m. The space above the water contains compressed air at pressure 4.2 $P_0 (P_0 = 1 x 10^5 P_a$, atmospheric pressure). The vessel connected to a tube at the bottom as shown in figure. Area of cross... | Initial speed of the efflux of water is (approximately) | general_qa | 180 |
The following is a multiple choice question (with answers).
===Question
Benzene andiso-pentane are mixed at 1.5 atm. and 110°F. Determine the compositions of the liquid and vapor using Raoult'slaw.
===Choices
x_B= 0.05, x_P= 0.95, y_B= 0.60, y_P= 0.40
x_B= 0.13, x_P= 0.87, y_B= 0.05, y_P= 0.95
x_B= 0.13, x_P= 0.87, y_... | x_B= 0.13, x_P= 0.87, y_B= 0.02, y_P= 0.98 | general_qa | 415 |
The following is a multiple choice question (with answers).
===Question
The actions of the illegal armed groups angered the Russian Federation government and the military. In April 1996, what weapon did the Russian forces use to kill the illegal armed leader Dzhokhar Dudayev and his two aides with a bomb?
===Choices
M... | Air-to-ground missile. | general_qa | 114 |
The following is a multiple choice question (with answers).
===Question
In what ways is contractionary fiscal policy in the United States likely to affect domestic interest rates and the international value of the dollar?
===Choices
Interest rates decrease but the value of the dollar remains the same.
Interest rates d... | Interest rates decrease and the dollar depreciates. | general_qa | 156 |
The following is a multiple choice question (with answers).
===Question
Which session of the Mao Dun Literature Prize did the famous author Chi Zijian win?
===Choices
The tenth session
The eleventh session
The sixth session
The fifth session
The fourth session
The seventh session
The eighth session
The ninth session
T... | The seventh session | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
A 25-year-old pregnant woman with severe pregnancy-induced hypertension, experiencing edema (+++), was treated with magnesium sulfate for convulsions and diuretics for one week. She delivered a full-term female infant weighing 3000g. During deliver... | Postpartum Exhaustion | general_qa | 196 |
The following is a multiple choice question (with answers).
===Question
For BCC iron, the radius of a tetrahedral interstitial site is ().
===Choices
$$
0. 0 3 8 \ \mathrm{n m}
$$
$$
0. 0 2 5 \ \mathrm{n m}
$$
$$
0. 0 2 8 \ \mathrm{n m}
$$
$$
0. 0 5 1 \ \mathrm{n m}
$$
$$
0. 0 3 6 \ \mathrm{n m}
$$
$$
0. 0 3 0 \ \math... | $$
0. 0 3 6 \ \mathrm{n m}
$$ | general_qa | 214 |
The following is a multiple choice question (with answers).
===Question
What day, month, and year was the first Sazae-san strip run by the Asahi Shimbun published?
===Choices
November 30, 1950
November 30, 1946
November 30, 1953
November 30, 1947
November 30, 1949
November 30, 1951
November 30, 1952
November 30, 1948
... | November 30, 1949 | general_qa | 151 |
The following is a multiple choice question (with answers).
===Question
For a certain overhead line with no height difference, the stress at the lowest point is 90MPa, the span is 200m, the line length is 300m, the sag at the center of the span is 7.5m, and the specific load under a certain meteorological condition is ... | 90.24 | general_qa | 172 |
The following is a multiple choice question (with answers).
===Question
About how many degrees do Chinese soldiers spread their legs apart when they squat?
===Choices
About 90°
About 85°
About 55°
About 60°
About 50°
About 70°
About 65°
About 75°
About 80°
About 45° | About 60° | general_qa | 91 |
The following is a multiple choice question (with answers).
===Question
Which opera form of the Enlightenment featured three acts with alternating arias and recitatives with usually six or seven characters?
===Choices
Opera buffa
Opera greco
Opera comique
Opera seria | Opera seria | general_qa | 55 |
The following is a multiple choice question (with answers).
===Question
If the contents of hello.c are corrupted in your project, run () to restore it to its original version.
===Choices
git checkout HEAD -- hello.c
git checkout main -- hello.c
git restore hello.c
git reset --hard hello.c
git reset -- hello.c
git chec... | git checkout HEAD -- hello.c | general_qa | 100 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements about journalism are correct? 1. The emergence of news activities in primitive society was driven by humanity's need for survival and development. 2. The standard for measuring public opinion is the direct result o... | 1 | general_qa | 185 |
The following is a multiple choice question (with answers).
===Question
The magnetic field in a region is given by $\overrightarrow B = {B_0}\overrightarrow i $.A charge particle of charge $\left( {{q_0}} \right)$ and mass $m$ is given a velocity $\overrightarrow v = \frac{{{v_0}}}{2}\widehat i + \frac{{{v_0}\sqrt 3... | $$\frac{{\pi m{v_0}}}{{2q{B_0}}}$$ | general_qa | 369 |
The following is a multiple choice question (with answers).
===Question
$\mathbf{A}$ pure He star with mass equal to 1 $M_{\odot}$ has a radius of 0.2 $R_{\odot}$ , a central density, $\rho_{c}=1 0^{4}$ $\mathrm{g} ~ \mathrm{c m}^{-3}$ (or $1 0^{7}$ kg $\mathrm{m}^{-3}$ ), and a central temperature of $T_{c}=1. 3 2 \ti... | $$1. 3 \times1 0^{5} \mathrm{~ y e a r s}$$ | general_qa | 714 |
The following is a multiple choice question (with answers).
===Question
What fraction of the rest mass energy is released (in the form of radiation) when a mass $\Delta M$ is dropped from infinity onto the surface of a neutron star with $M=1~$$M_{\\⊙}$ and $R=1 0$ km?
===Choices
≈ 0. 1 5
≈ 0. 0 5
≈ 0. 2 0
≈ 0. 0 8
≈ 0... | ≈ 0. 1 5 | general_qa | 162 |
The following is a multiple choice question (with answers).
===Question
In what year did the Costume Institute become a curatorial department?
===Choices
1949
1958
1957
1956
1959
1954
1953
1955
1969
1960 | 1959 | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
What is the balance node to be evaluated in power system power flow calculation?
===Choices
Node voltage magnitude and node voltage phase angle
Reactive power and active power of the generator
Node voltage magnitude and generator reactive power
Sy... | Active power and reactive power of the generator | general_qa | 124 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the sequence generated by starting with the initial term '0' and repeatedly applying the following substitution rules: 0 -> 0012, 1 -> 12, 2 -> 012, at each step. Given the input x_list (a serie... | [0, 1, 2, 0, 0, 1, 2, 1, 2, 0] | general_qa | 442 |
The following is a multiple choice question (with answers).
===Question
The angular displacement of the rod is defined as $\theta =\dfrac{3}{20}t^2$ where $\theta$ is in radian and t is in second. The collar B slides along the rod in such a way that its distance from O is, $r=0.9-0.12t^2$ where r is in metre and t is i... | $0.27$ m/s | general_qa | 192 |
The following is a multiple choice question (with answers).
===Question
Consider the initial value problem
$$
9 y^{\prime \prime}+12 y^{\prime}+4 y=0, \quad y(0)=a>0, \quad y^{\prime}(0)=-1
$$
Find the critical value of $a$ that separates solutions that become negative from those that are always positive.
===Choices
0... | 1.5 | general_qa | 133 |
The following is a multiple choice question (with answers).
===Question
At $t = 0$, an arrow is fired vertically upwards with a speed of $100 m/s$. A second arrow is fired vertically upwards with the same speed at $t = 5 s$. Then
===Choices
The ratio of the speeds of the first and second arrows at $t = 20 s $will be $... | The two arrows will reach back their starting points at $t = 20 s $and at $t = 25 s$. | general_qa | 304 |
The following is a multiple choice question (with answers).
===Question
The source producing sound and an observer both are moving along the direction of propagation of sound waves. If the respective velocities of sound, source and an observer are $v, v_s$ and $v_0$, then the apparent frequency heard by the observer wi... | $$\frac{n\left ( v - v_0 \right )} {v - v_s}$$ | general_qa | 260 |
The following is a multiple choice question (with answers).
===Question
In sediment transport, what is the term for the process by which larger sediment particles settle out of the water column?
===Choices
Deposition
Sedimentation
Erosion
Cavitation
Abrasion
Suspension
Dissolution
Bioturbation
Flocculation
Precipitati... | Deposition | general_qa | 77 |
The following is a multiple choice question (with answers).
===Question
A metal having atomic mass $60.22g/mole$ crystallizes in $ABCABC.....$ type packing. The density of each metal atom if the edge length of unit cell is $10\mathring { A } $, is:$\left( { N }_{ A }=6.022\times { 10 }^{ 23 } \right) $
===Choices
$$0.... | $$0.54g/{ cm }^{ 3 }$$ | general_qa | 207 |
The following is a multiple choice question (with answers).
===Question
Identify the correct statement(s)
===Choices
There exist three values of F at which friction force is equal to zero
There exist a value of F at which friction force is equal to zero
There exist no values of F at which friction force is greater tha... | There exist a value of F at which friction force is equal to zero | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
A nucleus of atomic mass M emits a gamma ray photon of frequency v. then
===Choices
Kinetic energy acquired by nucleus $= \frac { h ^ { 2 } v ^ { 2 } } { 8 M c ^ { 2 } }$
Kinetic energy acquired by nucleus $= \frac { h ^ { 2 } v ^ { 2 } } { 4 M c ... | Kinetic energy acquired by nucleus $= \frac { h ^ { 2 } v ^ { 2 } } { 2 M c ^ { 2 } }$ | general_qa | 318 |
The following is a multiple choice question (with answers).
===Question
The characteristics of wheat seedlings are ( ).
===Choices
For the gametophyte, residing in the asexual generation
For the gametophyte, it is in the asexual generation
For the gametophyte, it is in the sexual division
For the sporophyte, located i... | For the sporophyte, it is in the asexual generation | general_qa | 146 |
The following is a multiple choice question (with answers).
===Question
Which of the following interpretations of the meaning of the character "安" is inaccurate?(Choose the option that includes all the inaccurate statements)
而与之上下,如踏车轮而行,反逆炫乱不可止.而吾饮食起居如他日.吾非有异术也,惟莫与之争,而听其所为.故凡病我者,举非物也.食中有蛆,人见之必呕也.其不见而食者,未尝呕也.请察其所以生.论八珍... | only III | general_qa | 330 |
The following is a multiple choice question (with answers).
===Question
The one who praised the revolution as a 'good medicine to enlighten the people and remove the old to make way for the new', and advocated using violent revolution to overthrow the Qing government and establish a bourgeois democratic republic is ( )... | Rebuttal to Kang Youwei's Discussion of Revolution | general_qa | 152 |
The following is a multiple choice question (with answers).
===Question
A particle of mass $'m'$ is moving along a circle of radius $'r'$. At some instant, its speed is $'v'$ and it is gaining speed at a uniform rate $'a'$, then, at the given instant, acceleration of the particle is :
===Choices
inclined to radius at ... | inclined to radius at $\theta = \sin ^ { - 1 } \dfrac { 1 } { \left[ 1 + \dfrac { v ^ { 4 } } { a ^ { 2 } r ^ { 2 } } \right] ^ { 1 / 2 } }$ | general_qa | 593 |
The following is a multiple choice question (with answers).
===Question
An ejector is a compression device that uses a high-pressure airflow to draw in a low-pressure airflow, thus increasing its pressure. There is an ejector in which the high-pressure airflow enters through inlet 1 and the entrained low-pressure airfl... | 0.631 | general_qa | 341 |
The following is a multiple choice question (with answers).
===Question
Once a neutral state has expressed its neutrality, it becomes applicable between a belligerent and a neutral state ( ).
===Choices
Trade Law
Neutral country law
Environmental law
International law
Humanitarian law
Laws of belligerents
Law of the s... | Neutrality Legislation | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
Four vessels $1, 2, 3$ and $4$ contain respectively: $10\ g-atom\ (t_{1/2}=10\ h),\ 1\ g-atom\ (t_{1/2}=5\ h),\ 5\ g-atom\ (t_{1/2}=2\ h)$ and $2\ g-atom\ (t_{1/2}=1\ h)$ of different radioactive nuclides. In the beginning, the maximum radioactive ... | $$4$$ | general_qa | 151 |
The following is a multiple choice question (with answers).
===Question
The most effective method currently adopted by countries worldwide to avoid international double taxation is ( ).
===Choices
withholding method
allocation method
deduction method
credit method
deferral method
low tax method
exemption method
consol... | credit method | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
The gas pressure at the base of the photosphere is approximately $2 \times1 0^{4} \; \mathrm{N} \; /\mathrm{m}^{-2}$ and the mass density is $3. 2 \times1 0^{-4}$ kg /$\mathrm{m}^{-3}$ . Estimate the sound speed at the base of the photosphere is ()... | $7km/s^{-1}$ | general_qa | 181 |
The following is a multiple choice question (with answers).
===Question
Which weather condition is characterized by the presence of a layer of high, thin clouds often preceding a warm front?
===Choices
Cumulus clouds
Cumulonimbus clouds
Cirrus clouds
Altocumulus clouds
Stratocumulus clouds
Stratus clouds
Altostratus c... | Cirrus clouds | general_qa | 97 |
The following is a multiple choice question (with answers).
===Question
What is the wrong gold inscription on the sword of King Goujian of Yue, what font is used?
===Choices
Crane tortoise calligraphy
Fish reptile calligraphy
Serpent feline seal
Eagle canine engraving
Owl gorilla script
Dragon bird script
Bird insect ... | Bird insect seal | general_qa | 94 |
The following is a multiple choice question (with answers).
===Question
Let $x_1, . . . ,x_{2024}$ be complex numbers such that for all $1 \le i \le 2024$
$$$\sum_{1\le j_1<j_2<···<j_i\le 2024} x_{j1}x_{j2}... x_{ji} = 1$$$
Calculate $\left|\sum^{2024}_{i=1} x^{2024}_i \right|$ .
.
===Choices
2024^2
2023
2024
2024 - 3... | 1 | general_qa | 189 |
The following is a multiple choice question (with answers).
===Question
For a single normal population, if the mean ( mu ) is known, then the distribution of the statistic used for the hypothesis test of the variance ( sigma ^2 ) is ( ).
===Choices
( chi ^2(n-1/2) )
( chi ^2(n-2) )
( chi ^2(n+2) )
( chi ^2(n+1) )
( ch... | ( chi ^2(n) ) | general_qa | 145 |
The following is a multiple choice question (with answers).
===Question
In cases where reservoir parameters are correlated with seismic attributes, one of the appropriate methods for modeling reservoir parameters is _______.
===Choices
isotropic collaborative integration
isotropic sequential simulation
isotopic synerg... | isotopic synergistic Kriging | general_qa | 100 |
The following is a multiple choice question (with answers).
===Question
Suzhou tanci artists ______ and ________ created the Xiaoyang tune, which uses both true and false voices and is crisp and clear, as well as the Xia tune of "high-pitched and loud singing" and "fast-pitched and slow-singing" by singing and talking ... | Yang Xiaoting, Xia Hesheng | general_qa | 187 |
The following is a multiple choice question (with answers).
===Question
The intersection of the perimeter of a regular octagon and the perimeter of a triangle consists of three disjoint line segments of positive lengths. The ratio of the area of the regular octagon to the area of the triangle can be expressed in the fo... | 98 | general_qa | 134 |
The following is a multiple choice question (with answers).
===Question
How many object arguments can a non-static member function, which overloads a binary operator, accept at most?
===Choices
2
3
0
1 | 1 | general_qa | 46 |
The following is a multiple choice question (with answers).
===Question
Name and describe the seven symptom types of neuroses.
===Choices
Anxiety reaction, Phobic reactions, Depressive reactions, Dissociative reactions, Obsessive and compulsive reactions, Conversion reactions, Psychoneurotic reaction
Fear response, Av... | Anxiety reaction, Phobic reactions, Depressive reactions, Dissociative reactions, Obsessive and compulsive reactions, Conversion reactions, Psychoneurotic reaction | general_qa | 326 |
The following is a multiple choice question (with answers).
===Question
What are the unique components in the cell wall of Gram-positive bacteria compared to Gram-negative bacteria?
===Choices
Lipoteichoic Acids
Calcium Layer
Phosphorus Wall
Crystal Violet Stain
Peptidoglycan
Glycoprotein Layer
Protein
Outer Membrane
... | Phosphorus Wall | general_qa | 85 |
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