problem stringlengths 14 4.09k | solution stringlengths 1 802k | task_type stringclasses 3
values | problem_tokens int64 5 895 |
|---|---|---|---|
The following is a multiple choice question (with answers).
===Question
In recent research, the 14,000 stories that could be accessed on Google News' front page in a day pertained to how many actual news events?
===Choices
9,574
326
50
5,000
18
10,000
24
500
100
1,000 | 24 | general_qa | 97 |
The following is a multiple choice question (with answers).
===Question
In the development stage of elementary school students' internal speech, to which stage do they cultivate their internal speech ability mainly by thinking aloud and answering teachers' questions?
===Choices
The stage of thinking aloud
Sentence for... | The stage of thinking aloud | general_qa | 93 |
The following is a multiple choice question (with answers).
===Question
Given the open-loop transfer function of a system as $G(s)H(s) = \frac{K}{s} \frac{e^{-2s}}{(K > 0)}$, if the system needs to be stable, the range of $K$ should be ().
===Choices
$K > \frac{\pi}{8}$
$K > \frac{\pi}{6}$
$K > \frac{\pi}{2}$
$K < \fr... | $K > \frac{\pi}{4}$ | general_qa | 184 |
The following is a multiple choice question (with answers).
===Question
Under Chinese law,After A divorced, they considered their 3-month-old daughter, B, a burden. One day, A left B alone at home, locked the door, and went out. When A returned five days later, B had died in her cradle. The court ruled that A committed... | An impure omission offense | general_qa | 142 |
The following is a multiple choice question (with answers).
===Question
Solar rays are incident at $45^o$ on the surface of water $(\mu =4/3)$. What is the length of the shadow of a pole of length $1.2\ m$ erected at the bottom of the pond, if the pole is verticle assuming that $0.2\ m$ of the pole is above the water s... | $$0.825\ m$$ | general_qa | 168 |
The following is a multiple choice question (with answers).
===Question
Due to the presence of conjugated double bonds in the molecular structure of tyrosine, tryptophan, and phenylalanine within protein molecules, there is a characteristic absorption peak at the wavelength of ________.
===Choices
280nm
350nm
310nm
32... | 280nm | general_qa | 111 |
The following is a multiple choice question (with answers).
===Question
The figure shows an insulated cylinder divided into three parts A, B and C. Piston I and II are connected by a rigid rod and can move without friction inside the cylinder. Piston I is perfectly conducting while piston II is perfectly insulating. Th... | $$18P_oV_o$$ | general_qa | 221 |
The following is a multiple choice question (with answers).
===Question
The main role of mold in traditional vinegar-making processes is ( ).
===Choices
Decomposition and oxidation of small molecules in products.
Stabilization and modulation of salts in solutions.
Stabilization and enhancement of acidity in solutions.... | Decomposition and fermentation of macromolecules in raw materials. | general_qa | 137 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is numbers k such that k^2 - k + 41 is prime, where k is a non-negative integer. Given the input x_list (a series of values): [58, 59, 60, 61, 62, 63, 64, 65, 66, 67], determine the corresponding o... | [62, 63, 64, 65, 67, 68, 69, 70, 71, 72] | general_qa | 513 |
The following is a multiple choice question (with answers).
===Question
In Access, when browsing and modifying data through data access pages, one should use ().
===Choices
Window View
Code View
Layout View
Print View
Form View
Page View
Datasheet View
Design View
SQL View
Pivot View | Page View | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
A gas obeys $P(V-b)=RT$. Which of the following are correct about this gas?
===Choices
Isochoric curves have slope $=\frac {R}{P}$ and intercept b
Isochoric curves have slope $= \frac{R}{P(V+d)}$
Isochoric curves have slope $= \frac{R}{P(V+a)}$
Th... | The attraction forces are overcome by repulsive forces | general_qa | 176 |
The following is a multiple choice question (with answers).
===Question
Place the U-shaped tube vertically and inject some water. Assume the inner diameters of the two vertical tubes of the U-shaped tube are $1.0mm$ and $0.10mm$, respectively. What is the height difference between the water levels in the two vertical t... | 0.257m | general_qa | 176 |
The following is a multiple choice question (with answers).
===Question
______ refers to the highest reproductive capability of animals under normal physiological conditions and proper management of breeding.
===Choices
Efficient
Rational fertility
Fundamental fecundity
Effective reproduction
Optimal fecundity
Practic... | Rational fertility | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
The coordinates of the boundary points of a certain site have been measured as follows: Boundary Point 1 (35,8), Boundary Point 2 (35,5), Boundary Point 3 (40,0), Boundary Point 4 (25,0), Boundary Point 5 (25,8), and the area of the site is ( ) squ... | 92.5 | general_qa | 145 |
The following is a multiple choice question (with answers).
===Question
The base sequence of the template DNA is as follows: 5'-TGCAGT-3'. What is the base sequence of the RNA transcribed from it?
===Choices
5'-ACTGCA-3'
5'-UGCAGU-3'
5'-ACGCGU-3'
5'-ACGUCA-3'
5'-ACUGCA-3'
5'-ACUACA-3'
5'-ACGUCG-3'
5'-ACUCCA-3'
5'-AGUC... | 5'-ACUGCA-3' | general_qa | 133 |
The following is a multiple choice question (with answers).
===Question
Compute the diameter for a steel column fixed at both ends and subjected to a repeated axial load of 15,000 lb. The length of the column is 29 in. Design stress for the column = 8,500 psi, Elastic limit for the column = 47,000 psi, Modulus of elast... | (13 / 8) in | general_qa | 167 |
The following is a multiple choice question (with answers).
===Question
A vessel is partly filled with a liquid. Co-efficients of voltmetric expansion of material of the vessel and liquid are $\gamma_V $ & $ \gamma_L $ respectively. If the system is heated then volume unoccupied by the liquid will necessarily :
===Cho... | increase if $\gamma_V $ = $ \gamma_L $ | general_qa | 189 |
The following is a multiple choice question (with answers).
===Question
Three charges $Q, +q, -q$ are placed at the vertices of an isosceles right angled triangle as shown. The net electrostatic potential energy of the system is $0$ if $Q=$
===Choices
$$\dfrac{-2q}{1+\sqrt2}$$
$$-2q$$
\dfrac{-2q}{1-\sqrt2}
\dfrac{-2q}... | $$\dfrac{-2q}{1+\sqrt2}$$ | general_qa | 171 |
The following is a multiple choice question (with answers).
===Question
Compute $\int_C dz / (z * (z-2)^2)dz$, where C: |z - 2| = 1. The answer is Ai with i denoting the imaginary unit, what is A?
===Choices
-1
0.7854
-0.1234
0.1234
1
0.3926
-0.3926
0.5
-0.5
0 | -0.3926 | general_qa | 116 |
The following is a multiple choice question (with answers).
===Question
This question refers to the following information.
Perhaps, however, I am more conscious of the importance of civil liberties in this particular moment of our history than anyone else, because I travel through the country and meet people and see th... | The USA Patriot Act of 2001 | general_qa | 432 |
The following is a multiple choice question (with answers).
===Question
The patient has difficulty swallowing food, chest and diaphragm pain, dry skin, emaciation, a dark purple tongue, and a weak pulse. The treatment should be ______.
===Choices
Dry Skin Rejuvenation Tea
Weak Pulse Fortifying Drink
Diaphragm Constric... | Tong You Soup | general_qa | 126 |
The following is a multiple choice question (with answers).
===Question
What is the flow rate per unit length of the urban water supply pipeline calculated based on the assumption that the water consumption is evenly distributed across all the main pipes?
===Choices
Diameter to flow rate
Volume to flow ratio
Average f... | Length to flow ratio | general_qa | 97 |
The following is a multiple choice question (with answers).
===Question
In a completely mixed flow reactor, the following liquid-phase reaction is carried out:
$$
A + B \overset{k_1}{\underset{k_2}{\rightleftharpoons}} R + S
$$
Given that $k_1 = 7.0 \, \mathrm{m^3 / (kmol \cdot min)}$ and $k_2 = 3.0 \, \mathrm{m^3 / (k... | $$
x_{B}=0.75
$$ | general_qa | 363 |
The following is a multiple choice question (with answers).
===Question
Which book is the first official modern work on military management?
===Choices
Principles of Military Strategy
National Defense and Military Science
Military Strategy and National Defense
The Art of War
Principles of Military Science and National... | National Defense and Military Science | general_qa | 94 |
The following is a multiple choice question (with answers).
===Question
A force 'F' stops a body body of mass 'm' moving with a velocity 'u' in a distance 's'.The force required to stop a body of double the mass moving with double the velocity in the same distance is:
===Choices
8F
4F
3F
7F
2F
12F
10F
9F
5F
6F | 2F | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
What is the value of the non-dimensional parameter (Q) for a satellite that has escape speed and is on a parabolic orbit?
===Choices
0.5
2.5
2
1.5
4
3
3.5
1
0 | 2 | general_qa | 69 |
The following is a multiple choice question (with answers).
===Question
What is one of the indicator plants sensitive to NO2 pollution?
===Choices
daffodil
violet
rose
tulip
sunflower
daisy
poppy
lily
peony
marigold | sunflower | general_qa | 62 |
The following is a multiple choice question (with answers).
===Question
Which combination correctly identifies the dance style characterized by fast footwork and syncopated rhythms? Consider the following dance styles:
I. Tap Dance
II. Hip Hop
III. Ballet
IV. Salsa
Select the option that correctly describes the dance s... | I | general_qa | 101 |
The following is a multiple choice question (with answers).
===Question
Actinomycetes have a filamentous, branched body structure, so to which of the following types do they belong?
===Choices
Multicellular Eukaryotic Microorganisms
Simple Unicellular Prokaryotic Organisms
Multicellular Eukaryotic Cellular Forms
Simpl... | Multicellular Prokaryotic Microorganisms | general_qa | 148 |
The following is a multiple choice question (with answers).
===Question
If more than half of the vertices of an n-dimensional hypercube are colored blue, what is the minimum number of other blue vertices that at least one blue vertex must be connected to?
===Choices
1
√n
n+1
n/2
0
log₂(n)
n
n!
2ⁿ
n-1 | √n | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
For an n-type GaAs with a thickness of 0.08 cm, a current of 50 mA is applied in the $x$ direction, and a magnetic field of 0.5 T is applied in the $z$ direction, resulting in a Hall voltage of -0.4 mV. What is the mobility of the charge carriers?
... | $$
8. 5 3 \, \times\, 1 0^{3} \, \mathrm{[ \ c m^{2} / V \cdot s ]}
$$ | general_qa | 500 |
The following is a multiple choice question (with answers).
===Question
Compute $\sqrt[3]{130}$ with accuracy $0.0001$.
===Choices
5.0653
5.0651
5.0652
5.0657
5.0658
5.0654
5.0660
5.0659
5.0655
5.0656 | 5.0658 | general_qa | 107 |
The following is a multiple choice question (with answers).
===Question
A body A of mass m slides on plane inclined at angle $\theta_1$ to the horizontal and $\mu$ is the coefficient of friction between A and the plane.A is connected by a light string passing over a frictionless pulley to another body B,also of mass m,... | A will never move up the plane | general_qa | 425 |
The following is a multiple choice question (with answers).
===Question
Two particle of mass m and 2m moving in opposite direction collide head on. They have same de-Broglie wavelength before collision after the collision.
===Choices
If e = 1, de-broglie wavelength of 2m is greater than that of m
If e = 1, de-broglie ... | If e = 1, de-broglie wavelength of m is greater than that of 2 m | general_qa | 266 |
The following is a multiple choice question (with answers).
===Question
When determining the ash content in food, first prepare a porcelain crucible, boil it with ( ) : hydrochloric acid (1:4) for 1 to 2 hours, wash and dry it, and then use ( ) to number the outer wall of the crucible.
===Choices
Calcium Chloride and ... | FeCl3 and Blue Ink | general_qa | 146 |
The following is a multiple choice question (with answers).
===Question
What part of the head does Yangming headache affect?
===Choices
Mostly located at the back of the head, connecting downwards to the neck.
On the frontal segments, reaching towards the nose area
On the top of the head, including the crown area
On t... | On the forehead and the brow ridge area | general_qa | 138 |
The following is a multiple choice question (with answers).
===Question
When was the current version of the State Seal of the Republic of Korea put into use?
===Choices
2018
2013
2014
2009
2017
2016
2010
2011
2015
2012 | 2011 | general_qa | 84 |
The following is a multiple choice question (with answers).
===Question
For an RL parallel circuit with an inductance value of L and a resistance value of R, the expression of the total impedance of the circuit at the angular frequency ω is__
===Choices
Z= R−jωL/R+jωL
Z = 1/(1/R + 1/jωL)
Z=R+jωL
Z= R⋅jωL/R−jωL
Z= R+jω... | Z = 1/(1/R + 1/jωL) | general_qa | 123 |
The following is a multiple choice question (with answers).
===Question
The electrons, identified by quantum numbers n and $l$ can be placed in order of increasing energy, from the lowest to highest will be:i. n = 3 & l = 1ii. n = 3 & l = 0iii. n = 4 & l = 2iv. n = 4 & l = 0
===Choices
iv < iii < i < ii
$$iii < ii < i... | $$iii < iv < i < ii$$ | general_qa | 182 |
The following is a multiple choice question (with answers).
===Question
The editor of 'String Rope Preparation' is( ).
===Choices
Zhou Wenhai
Pang Jiahui
Bai Changshan
Guo Peirong
Wang Youding
Rongzhai
Feng Jiliang
Chen Lingyu
Liu Xiangdong
Hua Qiuping | Rongzhai | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
Evaluate \[ \sum_{k=1}^\infty \frac{(-1)^{k-1}}{k} \sum_{n=0}^\infty \frac{1}{k2^n + 1}. \]
===Choices
\frac{3}{2}
\frac{3}{4}
\frac{11}{8}
\frac{13}{8}
\frac{9}{8}
1
\frac{7}{8}
\frac{15}{16}
\frac{5}{4}
\frac{1}{2} | 1 | general_qa | 137 |
The following is a multiple choice question (with answers).
===Question
In a container with a volume of $28.5 L$, there is $0.3 kg$ of $\mathrm{NH_{3}} \ (\mathrm{gas})$. The measured temperature is $348.2 K$. What is the pressure?
===Choices
$$
1 \ 7 0 2. \ 7 \ \mathrm{k P a}
$$
$$
1 \ 5 7 5. \ 4 \ \mathrm{k P a}
$$
... | $$
1 \ 6 7 2. \ 1 \ \mathrm{k P a}
$$ | general_qa | 300 |
The following is a multiple choice question (with answers).
===Question
A hill is $500\ m$ high. Supplies are to be sent across the hill using a canon that can hurl packets at a speed of $125\ m/s$ over the hill. The canon is located at a distance of $800\ m$ from the foot of a hill and can be moved on the ground at a ... | $$45 s$$ | general_qa | 199 |
The following is a multiple choice question (with answers).
===Question
Egg shell calcification of Hilar Lymphnode is associated with
===Choices
Byssinosis
Anthracosilicosis
Siderosis
Sarcoidosis
Capnosism
Tuberculosis
Asbestosis
Silicosis
Anthracosis
Asbestos-related Pleurisy | Silicosis | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
Suppose the electronic energy band of a one-dimensional crystal can be written as E(k)= \frac{h^{2},},{ma^{2},}, (\frac{7},{8},-\cos ka +\frac{1},{8},\cos 2ka ) where a is the lattice constant. What are the effective masses at the bottom and top of... | Band top m^{*},=-\frac{2m},{3},. Band bottom m^{*},=2m | general_qa | 351 |
The following is a multiple choice question (with answers).
===Question
How to effectively reduce the precipitation of sodium aluminum carbonate and SiO2 during the carbonization process?
===Choices
Reduce silicon precipitation by adding alumina
Decrease the alkalinity, maintain steady sodium carbonate levels and temp... | Appropriately increase the alkali concentration, reduce the sodium carbonate concentration and lower the temperature | general_qa | 174 |
The following is a multiple choice question (with answers).
===Question
Among the options below, which one correctly describes the "sports service product"?
===Choices
This refers to the method of providing various types of sports information to society in the form of cultural activities, in order to promote cultural ... | It refers to the provision of various types of sports services to society in a non-material form of active labor, aimed at satisfying people's fitness, entertainment, and spiritual needs. | general_qa | 341 |
The following is a multiple choice question (with answers).
===Question
Following endaerectomy on the right common carotid, a patient is found to be blind in the right eye. It is appears that a small thrombus embolized during surgery and lodged in the aery supplying the optic nerve. Which aery would be blocked?
===Cho... | Central aery of the retina | general_qa | 143 |
The following is a multiple choice question (with answers).
===Question
Under the same conditions, which of the following transportation methods is the fastest?
===Choices
Underground metro
Air transport
Space travel transport
Pedestrian movement
Maritime transport
Railway transport
Hyperloop transit
Horseback riding
... | Air transport | general_qa | 71 |
The following is a multiple choice question (with answers).
===Question
An ancient Egyptian mummy is found. A count of the radiationemitted from the C^14 in the body is only one eighth thatfound in persons who have died recently. About how old isthe mummy? (The half-life of C^14 is 5568 years.)
===Choices
20,136 years... | Both 16,704 years old and 3 * 5568 years old are correct | general_qa | 180 |
The following is a multiple choice question (with answers).
===Question
In a three-phase balanced load Y-Δ connection system, the phase current is known to be 10A and the phase voltage is 400V. What is the magnitude of the line current?
===Choices
23.1A
19.05A
16.89A
15.49A
18.76A
17.32A
20A
14.14A
10A
25A | 17.32A | general_qa | 119 |
The following is a multiple choice question (with answers).
===Question
Regarding the radiation pattern of the basic electric dipole, the correct statement among the following is ( ).
===Choices
The main lobe of the H-plane is omnidirectional.
The half-power beamwidth of the E-plane is 45°.
The half-power beamwidth of... | The half-power beamwidth of the E-plane is 90°. | general_qa | 140 |
The following is a multiple choice question (with answers).
===Question
A nuclear reactor has a total power output of 1000 MW, with 2/3 of the energy carried away by the cooling water, disregarding other energy losses. The cooling water comes from a local river, with a flow rate of 100 m³/s and a water temperature of 2... | $$
1. 5 9 \mathrm°C
$$ | general_qa | 247 |
The following is a multiple choice question (with answers).
===Question
The motion of a body is given by the equation $\dfrac{dv}{dt} = 6-3v:$where $v$ is in $m/s$. If the body was at rest at $t=0$ (i) the terminal speed is $2\ m/s$(ii) the magnitude of the initial acceleration is $6\ m/s$(iii) the speed varies with ti... | $$(i),(iii)$$ | general_qa | 175 |
The following is a multiple choice question (with answers).
===Question
To determine the permeability coefficient $k$ of the phreatic aquifer soil using the water injection method on-site, it is known that the diameter of the borehole is $d = 30 \, \text{cm}$, reaching down to the impermeable layer. The injection flow ... | 0.0069cm/s | general_qa | 277 |
The following is a multiple choice question (with answers).
===Question
Which of the following subphyla of ferns has a mycorrhizal gametophyte?
===Choices
Ginkgophyta
Bryophyta
Lycophyta
Pteridophyta
Hepaticophyta
Magnoliophyta
Cycadophyta
Coniferophyta
Anthophyta
Psilophyta | Lycophyta | general_qa | 101 |
The following is a multiple choice question (with answers).
===Question
Mr. Wang, male, 45 years old, with no previous history of heart disease. Over the past week, he has frequently experienced sudden palpitations. Physical examination: heart rate: $150bpm$, regular rhythm. After carotid sinus pressure, the heart rate... | Paroxysmal Supraventricular Tachycardia | general_qa | 187 |
The following is a multiple choice question (with answers).
===Question
To detect distant metastasis in pancreatic cancer the imaging modality which is BEST used is:
===Choices
Positron-emission tomography with fluorodeoxyglucose positron emission computed tomography
Positron-emission tomography with fluorodeoxyglucos... | Positron-emission tomography with fluorodeoxyglucose positron emission tomography | general_qa | 164 |
The following is a multiple choice question (with answers).
===Question
Based on the approved local budget revenue and expenditure, the central government will pay a fixed amount of revenue to the central government in any region where revenue exceeds expenditure; in regions where expenditure exceeds revenue, the centr... | fixed amount payment | general_qa | 124 |
The following is a multiple choice question (with answers).
===Question
In mainland China, in which literary journal was the title of public intellectual officially used in 2004?
===Choices
China Newsweek
The New Yorker
Three-Link Life Weekly
The Economist
Science China Life Sciences
Nan Du Weekly
China Economic Weekl... | Southern People Weekly | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
As of 2011, what was the female population of Chitwan District?
===Choices
300,797
300,987
300,907
300,997
300,897
300,898
300,887
300,877
300,899
300,889 | 300,897 | general_qa | 115 |
The following is a multiple choice question (with answers).
===Question
The correct freeze-drying process is ().
===Choices
harmonize the thermal limits → pre-cooling → evaporation → drying
gauge the mixture temperature → pre-freezing → crystallization → sublimation
pre-freezing → measure the eutectic point → drying →... | measure the eutectic point → pre-freezing → sublimation → drying | general_qa | 195 |
The following is a multiple choice question (with answers).
===Question
Let $m_1$ and $m_2$ be the slopes of the lines through the origin that are tangent to the circle $(x- 2)^2 + (y - 2006)^2 = 1$ . Find $\left\lfloor \frac{m_1 + m_2}{10} \right\rfloor$ .
.
===Choices
262
263
269
266
265
260
267
261
264
268 | 267 | general_qa | 134 |
The following is a multiple choice question (with answers).
===Question
In the infrared band, a star has been observed orbiting a massive yet invisible object (a black hole) at the center of the Milky Way. The center of the Milky Way is identified as Sagittarius A* (Sgr A*), which is a compact source of radio and X-ray... | $$
7 \ 1 7 0 \ \mathrm{k m / s}
$$ | general_qa | 350 |
The following is a multiple choice question (with answers).
===Question
Company A is a small private enterprise primarily engaged in the production of food additives. It plans to improve its compensation system and intends to implement a highly stable salary structure for its logistics support department staff. The com... | III and Ⅳ | general_qa | 155 |
The following is a multiple choice question (with answers).
===Question
The general solution of the differential equation (y''-2y'-3y=3x+1) is ( ).
===Choices
(y=C_1e^{3x}+C_2e^{x}-x+frac{1}{3})
(y=C_1e^{3x}+C_2e^{-x}-x-frac{1}{6})
(y=C_1e^{-3x}+C_2e^{x}-x+frac{1}{3})
(y=C_1e^{-3x}+C_2e^{-x}-x+frac{1}{3})
(y=C_1e^{3x}... | (y=C_1e^{3x}+C_2e^{-x}-x+frac{1}{3}) | general_qa | 292 |
The following is a multiple choice question (with answers).
===Question
A particle of mass m is repelled from the origin by a force f = k/x^3 where x is the distance from the origin. Solve the equation of motion if the particle is initially at rest at a distance x_0 from the origin.
===Choices
x = [x^2_0 - (2kt^2/m)]^... | x = [x^2_0 + (kt^2/mx^2_0)]^1/2 | general_qa | 301 |
The following is a multiple choice question (with answers).
===Question
In someone's oral epithelial cells, two $\mathbf{X}$ chromatin can be observed and $\mathbf{Y}$ chromatin is positive, indicating that their sex chromosome composition is ___.
===Choices
XXX
XYY
YYY
XXXY
XY
XXYYY
XXY
XX
XXXXY
XXYY | XXY | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
Among the following options, which one correctly describes the "sports demand"?
===Choices
People with a certain amount of leisure time are willing and able to purchase sports event tickets at various price levels within a certain period.
In a cer... | People who have a certain amount of leisure time are willing and able to purchase a certain quantity of sports products within a certain period of time, at a certain price level. | general_qa | 315 |
The following is a multiple choice question (with answers).
===Question
Male, patient, 50 years old, 2 months ago, daytime literacy difficulties, nighttime pins and needles numbness in the face, weakness of the right lower limb, inability to move, dysuria, 4 days ago, blurred vision in both eyes attempted to be admitte... | periodic paralysis | general_qa | 238 |
The following is a multiple choice question (with answers).
===Question
Which individuals can join together and qualify for a breakpoint on their aggregate purchases of mutual funds?
===Choices
Students living on the same college campus
Employees within a single department of a company
Small business owners collaborat... | Family members in the same household | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
In July 2003, General Atomics and Northrop Grumman independently developed turbine power arresters; In February 2005, two companies competed and the US military ultimately chose _____ company, which continued to develop turbine electric arresting d... | General Atomics | general_qa | 112 |
The following is a multiple choice question (with answers).
===Question
A study of persons developing skin lesions following sun exposure is conducted. The lesions are not found on skin protected from ultraviolet light. Biopsies of involved skin show immunoglobulin G deposition along the dermal-epidermal junction, alon... | Discoid lupus erythematosus | general_qa | 156 |
The following is a multiple choice question (with answers).
===Question
A block of mass 1 kg rests inside a cubical vessel, as shown in the figure which is moving with a velocity of v = $\sqrt { 69 } t$ in horizontal direction , where t is in second. All the surface are smooth. The block is at rest w.r.t the cube, the ... | 13 N | general_qa | 174 |
The following is a multiple choice question (with answers).
===Question
What is the main difference between the three types of chronic apical periodontitis on X-rays primarily observed in?
===Choices
Borders of the radiolucency
Shape of the radiolucency
Length of the radiopacity
Width of the radiolucency
Coloration of... | Borders of the radiolucency | general_qa | 111 |
The following is a multiple choice question (with answers).
===Question
A train $A$ runs from east to west and another train $B$ of the same mass runs from west to east at the same speed along the equator. A presses the track with a force $F_1$ and B presses the track with a force $F_2$. Then:
===Choices
$$incomplete ... | $$F_1 > F_2$$ | general_qa | 213 |
The following is a multiple choice question (with answers).
===Question
What was the title of the American Heart Association's first weight-loss book?
===Choices
American Heart Association No-Fad Diet: A Personal Guide for Healthy Living
American Heart Association Weight-Loss Guide: A Personal Plan for Healthy Living
... | American Heart Association No-Fad Diet: A Personal Plan for Healthy Weight Loss | general_qa | 191 |
The following is a multiple choice question (with answers).
===Question
To determine the average number of children living in single-family homes, a researcher picks a simple random sample of 50 such homes. However, even after one follow-up visit the interviewer is unable to make contact with anyone in 8 of these homes... | Too high, because nonresponse bias tends to overestimate average results. | general_qa | 245 |
The following is a multiple choice question (with answers).
===Question
A fluid having a flow rate of 5lbm/sec passes through a pipe where heat is transferred at the rate of 50 Btu/sec. How much work can be done by this system if the velocity, enthalpy and height at the entrance are 100 ft/sec, 1000 Btu/lbm, and 100 ft... | - 48.5 Btu/sec, 0.75 ft^2 | general_qa | 316 |
The following is a multiple choice question (with answers).
===Question
To reduce the intensity of the thermal neutron flux to 0.1% of its original value, what should be the thickness of the cadmium layer? (The effective cross-section of cadmium is 2900 barns.) A fast neutron flux passes through graphite before hitting... | $$
0.05 centimeters
$$ | general_qa | 235 |
The following is a multiple choice question (with answers).
===Question
A computer system has three components that can be improved, with the speedup ratios of the three components as follows:
Component 1 speedup = 30, Component 2 speedup = 20, Component 3 speedup = 10.
1) If the percentages of time spent on components... | Speedup ratio = 0.3611, percentage = 0.8163 | general_qa | 380 |
The following is a multiple choice question (with answers).
===Question
Consider the set $S=\{1, 2, 3, 4, 5, 6, 7, 8\}$ . We say a subset $s \in S$ , with $|s| \geq 2$ , is prime-like if every two-element subset of $s$ will always contain at least one prime number. Find the number of prime-like subsets.
===Choices
72
... | 71 | general_qa | 130 |
The following is a multiple choice question (with answers).
===Question
Three point like equal masses $m_1, m_2$ and $m_3$ are connected to the ends of a mass-less rod of length $L$ which lies at rest on a smooth horizontal plane. At $t = 0$, an explosion occurs between $m_2$ and $m_3$, and as a result, mass $m_3$ is d... | none of the above | general_qa | 385 |
The following is a multiple choice question (with answers).
===Question
Cotton and linen both readily catch fire. A batch of towels is composed of both cotton and linen, and is known to have caught fire. If it is known that the towels were ignited by a lit cigarette, which of the following arguments utilizes the most a... | Because a lit cigarette was the only ignition source present near the towels made of combustible cotton and linen, it can be concluded that the cigarette was the cause of the fire. | general_qa | 582 |
The following is a multiple choice question (with answers).
===Question
In a pumped-storage scheme, water is supplied to a single turbine through a 200m long, 2m diameter penstock line. The power plant uses two centrifugal pumps to pump water back to the upper reservoir, using the same penstock pipeline. Basic data are... | $$
3. 3 1 \times1 0^{4} \mathrm{m}^{3}
$$ | general_qa | 501 |
The following is a multiple choice question (with answers).
===Question
The apparent frequency is $f_1$ when a source of sound approaches a stationary observer with a speed $u$ and $f_2$ when the observer approaches the stationary source with same speed. If $v$ is the velocity of sound, then :
===Choices
$f_1 > f_2$ i... | $f_2 > f_1$ if $u< v$ | general_qa | 208 |
The following is a multiple choice question (with answers).
===Question
In a circulating fluidized bed reactor, if the volume of the catalyst bed is $2 \mathrm{m}^{3}$ and the bed void fraction is 0.4, and a concentration of $10^{-2} \mathrm{k mol} / \mathrm{m}^{3}$ in the gas phase, what is the maximum reaction rate t... | $$
0.8136kmol/s
$$ | general_qa | 246 |
The following is a multiple choice question (with answers).
===Question
A particle experience a net force that is always parallel to y-axis. If it moves along the curve $xy=a^2$ where $a$ is a constant and the magnitude of the force is $y^n$, then $n$ is
===Choices
2
6
4
7
8
5
9
0
3
1 | 1 | general_qa | 87 |
The following is a multiple choice question (with answers).
===Question
When establishing the grid layout for a construction site, the relative error of the side length is determined based on elevation requirements, it's generally ().
===Choices
1/15000~1/30000
1/2000~1/4000
1/10000~1/20000
1/1000~1/2000
1/5000~1/1000... | 1/10000~1/20000 | general_qa | 191 |
The following is a multiple choice question (with answers).
===Question
The ultra-high frequency pulse machine emits pulses with an energy of $E=6 \mathrm{~J}$ each time and emits $f=500$ times per second, with an efficiency of $\eta=60\%$. To ensure that the temperature increase of the cooling water flowing through th... | $$
1 7 2 \mathrm{~ L}
$$ | general_qa | 269 |
The following is a multiple choice question (with answers).
===Question
Which substance is most commonly used as an energy supplement during exercise?
===Choices
Anabolic steroids
Creatine
Taurine
Coenzyme Q10
Beta-alanine
Ribose
Fish oil
Dietary fiber
Carnitine
L-arginine | Creatine | general_qa | 71 |
The following is a multiple choice question (with answers).
===Question
A sandy soil layer has a bulk weight γ = 19.8 kN/m3, specific gravity Gs = 2.65, water content w = 20.5%, and the maximum and minimum pore ratios of the sandy layer are measured to be 0.625 and 0.486, respectively. find the pore ratio of the sandy ... | 0.613, loose | general_qa | 192 |
The following is a multiple choice question (with answers).
===Question
$\mathrm{A}$ ray of light incident at the point $(-2, -1)$ gets reflected from the tangent at $(0,-1)$ to the circle $x^{2}+y^{2}=1$. The reflected ray touches the circle. The equation of the line along which the incident ray moved is
===Choices
3... | $$4x+3y+11=0$$ | general_qa | 160 |
The following is a multiple choice question (with answers).
===Question
When linearly polarized light undergoes total internal reflection at a glass-air interface, and the vibration direction of the electric vector of the linearly polarized light forms a non-zero or $π/2$ angle with the plane of incidence, given that t... | 60.47° or 46.05° | general_qa | 262 |
The following is a multiple choice question (with answers).
===Question
In the mid-18th century, which United Kingdom scientist made an epoch-making breakthrough in the study of fluid inclusions?
===Choices
T. J. Hayden
S. R. Milton
K. L. Prescott
L. B. Norton
N. K. Reynolds
P. A. Vickers
E. D. Roader
H. T. Wallace
J.... | E. D. Roader | general_qa | 104 |
The following is a multiple choice question (with answers).
===Question
Where was the first performance of Traid.of Zhage's 'Soul Power II World Tour' held?
===Choices
Shenzhen
Hangzhou
Chengdu
Shanghai
Wuhan
Guangzhou
Nanjing
Tianjin
Xi'an
Beijing | Wuhan | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
Which of the following situations in a middle-school classroom is most likely to diminish student's motivation to learn?
===Choices
the teacher encourages students to collaborate on group assignments
the teacher rewards students for participating ... | the teacher routinely designs learning activities that are beyond student's cognitive level | general_qa | 144 |
The following is a multiple choice question (with answers).
===Question
When two solid small iron spheres of the same size are in contact, the gravitational force between them is $F$. If two solid large spheres with a radius twice that of the solid small spheres are in contact, then the gravitational force between them... | 16F | general_qa | 106 |
The following is a multiple choice question (with answers).
===Question
What does sepsis refer to?
===Choices
Bacteria enter the bloodstream in large numbers, and bacteria can be detected in the blood, but there may be no symptoms of poisoning.
Bacteria enters the bloodstream, replicate and create toxins, and cause sy... | Bacteria enter the bloodstream, multiply and produce toxins, and cause symptoms of poisoning. | general_qa | 208 |
The following is a multiple choice question (with answers).
===Question
What s-character is used by the carbon atom in the orbital directed to hydrogen atom in $CH_{2}F_{2}$ molecule?[$H-C-H$ bond angle in $CH_{2}F_{2}$ is $111.9^{\circ}$ (cos $111.9^{\circ}$ = $-0.3729$)]
===Choices
26.1%
27.2%
$27.1$%
28.1%
37.19%
$... | $27.1$% | general_qa | 155 |
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