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 CPU has direct access to () and (), but not to disks and discs.
===Choices
mouse,monitor
ROM,PROM
motherboard,keyboard
router,Wi-Fi
register,RAM
flash drive, external storage
cache, main memory
hard drive,printer
disk drive,CD-ROM
BIOS,CMOS | cache, main memory | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
The quantum efficiency of the PIN photodiode is $0.9$, $\lambda = 1.3 \; \mu\mathrm{m}$. Calculate: the photocurrent when the incident optical power is $-30$ dBm is ____.
===Choices
$$
1. 1 5 \times1 0^{-6} \mathrm{~ A}
$$
$$
1. 2 3 \times1 0^{-6}... | $$
9. 4 4 \times1 0^{-7} \mathrm{~ A}
$$ | general_qa | 309 |
The following is a multiple choice question (with answers).
===Question
Which group of animals all have claws?
===Choices
Rabbit, snail, parrot
Penguin, octopus, antelope
Dog, snake, seahorse
Bear, spider, jellyfish
Crab, salamander, ostrich
Crocodile, pangolin, eagle
Frogs, sturgeon, chicken
Lizard, whale, toad
Turtl... | Crocodile, pangolin, eagle | general_qa | 106 |
The following is a multiple choice question (with answers).
===Question
For cam mechanisms with very high rotational speeds, in order to minimize shocks and vibrations, the follower motion law is adopted as the motion law of ( ).
===Choices
Sine Speed Motion Law
Uniform Motion
Uniform acceleration and deceleration mot... | Sine acceleration motion law | general_qa | 122 |
The following is a multiple choice question (with answers).
===Question
When the radiation pattern of a certain antenna is independent of the $\varphi$ angle and changes with $\theta$ as follows
$$
\begin{array} {l l} {{F=1}} & {{\quad0^\circ\leq\theta\leqslant30^\circ}} \\ {{F=0.5}} & {{\quad60^\circ\leq\theta\leqslan... | $$
\frac{\pi} {2} ( 7-3 \ \sqrt{3} )
$$
$$
1, 1 1
$$ | general_qa | 583 |
The following is a multiple choice question (with answers).
===Question
What is the distance between Earth and the star Alpha Mensae, given its apparent magnitude m = +5.08 and absolute magnitude M_V = +5.05?
===Choices
Exactly 10.2 parsecs away.
Exactly 10 parsecs away.
A little closer than 10 parsecs.
A little farth... | A little farther away than 10 parsecs. | general_qa | 148 |
The following is a multiple choice question (with answers).
===Question
A rock sample contains 0.3g of 238U and 0.12g of 206Pb. Assuming that all of this lead comes from the decay of 238U. Try to calculate the geological age of this rock ( ) × 109a (note: keep to two decimal places)
===Choices
2.15
2.78
3.19
1.56
4.22... | 2.45 | general_qa | 139 |
The following is a multiple choice question (with answers).
===Question
What type of research method is typically used to evaluate the effectiveness of military training programs?
===Choices
Experimental design
Historical review
Ethnographic methods
Non-participant observation
Qualitative analysis
Descriptive research... | Experimental design | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
Which parameter characterizes the attenuation of solar radiation as it passes through Earth's atmosphere?
===Choices
Atmospheric Optical Depth
Atmospheric Diffusion Measure
Solar Absorption Rate
Solar Penetration Index
Atmospheric Scattering Ratio... | Atmospheric Optical Depth | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
What are the main differences between a PHEV and a HEV in a hybrid vehicle?
===Choices
Different Drive Modes
Different Charging Methods
Whether to Use an Internal Combustion Engine
Types of Electric Motors Utilized
Battery Size and Weight
Emission... | Different Charging Methods | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
If the velocity of a moving particle is $v\propto x^n$ where x is the displacement, then:
===Choices
$$n = \dfrac{2}{5}$$
$$n = -\dfrac{1}{2}$$
$$n < \dfrac{1}{2}$$
$$n > \dfrac{1}{2}$$
$$n = \dfrac{1}{4}$$
$$n = \dfrac{3}{4}$$
(a) and (b) are cor... | $$n < \dfrac{1}{2}$$ | general_qa | 167 |
The following is a multiple choice question (with answers).
===Question
In a tubular heat exchanger, the two fluids flow in parallel, with the inlet and outlet temperatures of the hot fluid being 130°C and 65°C, and the inlet and outlet temperatures of the cold fluid being 32°C and 48°C. If the two fluids are changed t... | $$
\Delta t^{\prime} {}_{\mathrm{m}}=5 2. 5 \mathrm{°C}
$$ | general_qa | 421 |
The following is a multiple choice question (with answers).
===Question
The equation $N(t) = \frac{ 500 }{ 1+49 \cdot e^{-0.7 \cdot t} }$ models the number of people in a town who have heard a rumor after $t$ days. To the nearest whole number, how many people will have heard the rumor after $3$ days?
===Choices
68
75
... | 71 | general_qa | 119 |
The following is a multiple choice question (with answers).
===Question
Who played Charlie Luciano in the 1991 film 'Good Guys'?
===Choices
Johnny Depp
Mark Wahlberg
Tom Cruise
Val Kilmer
Al Pacino
Christian Slater
Tom Hanks | Christian Slater | general_qa | 60 |
The following is a multiple choice question (with answers).
===Question
What is Drum Lyrics?
===Choices
During the late Yuan era, alongside choral hymns, a type of harmonic music that surfaced in the eastern provinces came into existence. Initially, it mainly addressed broad and organized compositions.
After the early... | After the mid-Ming dynasty, alongside ballad singing, a form of narrative singing that spread through the northern region emerged. In its early days, it primarily focused on extensive and formal compositions. | general_qa | 428 |
The following is a multiple choice question (with answers).
===Question
Find the area of a triangle bounded by the x-axis, the line $f(x) = 12 - \frac{ 1 }{ 3 } \cdot x$, and the line perpendicular to $f(x)$ that passes through the origin.
===Choices
972/9
972/10
972/12
972/11
972/4
972/5
972/7
972/8
972/13
972/6 | 972/5 | general_qa | 132 |
The following is a multiple choice question (with answers).
===Question
Most fields for serials in CNARC can apply to __.
===Choices
Magazines
Journals
Research papers
Annual reports
Technical reports
Bulletins
Conference proceedings
Serial publications
Periodicals
Newsletters | Serial publications | general_qa | 59 |
The following is a multiple choice question (with answers).
===Question
Female, 25 years old. Married for 4 years without pregnancy, she presented with secondary amenorrhea for 8 months. Examination of the uterus was slightly small. Intramuscular progesterone injection was given daily for 5 days and no vaginal bleeding... | ovarian amenorrhea | general_qa | 174 |
The following is a multiple choice question (with answers).
===Question
In economics, what is the term for a resource allocation state where no one can be made better off without making someone else worse off?
===Choices
Pareto superiority
Pareto efficiency
Nash equilibrium
Pareto optimality
Pareto suboptimization
Par... | Pareto optimality | general_qa | 95 |
The following is a multiple choice question (with answers).
===Question
Which company created the TV show 'The Simpsons'?
===Choices
Warner Bros. Entertainment
Disney Television Animation
Fox Television Studios
Fox Television Network
Fox Network Studios
Fox Television Animation
Fox Network
Fox Broadcasting Company
20t... | Fox Broadcasting Company | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
What branch of philosophy studies the concepts of existence, being, becoming, and reality?
===Choices
Metaphysics
Ontology
Epistemology
Axiology
Phenomenology
Cosmology
Existentialism | Ontology | general_qa | 61 |
The following is a multiple choice question (with answers).
===Question
When was the artwork 'In Front of You' created by Italian artist Salvatore Garau?
===Choices
2023
2021
2022
2025
2020
2024
1999
2019
2018
1960 | 2021 | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
Statement 1| For any two variables x and y having joint distribution p(x, y), we always have H[x, y] ≥ H[x] + H[y] where H is entropy function. Statement 2| For some directed graphs, moralization decreases the number of edges present in the graph.
... | False, False | general_qa | 133 |
The following is a multiple choice question (with answers).
===Question
What is the drug that the identification test identifies?
===Choices
Medicines found in unmarked packets
Solutions placed in clear jars
Medicines saved in labeled boxes
Compounds kept within sealed tubes
Ingredients located inside coded vials
Drug... | Drugs stored in labeled containers | general_qa | 99 |
The following is a multiple choice question (with answers).
===Question
A citizen of a certain province, Citizen A, suffered from a serious illness and received treatment in a hospital for many years without improvement. A, in unbearable pain and wishing to end his life, told Doctor B that he felt better and asked B to... | B's actions have not been clearly defined under our Constitution and laws | general_qa | 384 |
The following is a multiple choice question (with answers).
===Question
Who died without naming a successor, which led to a war of succession in 370 BC?
===Choices
Marquess Hui of Qi
Marquess Hui of Wei
Marquess Hui of Zhao
Marquess Xiang
Marquess Huan
Marquess Zhao
Marquess Hui
Marquess Wen
Marquess Wu
Marquess Zhuan... | Marquess Wu | general_qa | 100 |
The following is a multiple choice question (with answers).
===Question
What is the origin of the literary reference 'travel with distinction' in terms of which poet's work?
===Choices
Du Fu
Su Shi
Li Qingzhao
Bai Juyi
Su Dongpo
Wang Wei
Li Bai | Du Fu | general_qa | 65 |
The following is a multiple choice question (with answers).
===Question
What is the founder of the Beaverbrook newspaper group known as in the history of journalism?
===Choices
Chandler of Norway
Murdoch of Ireland
Hearst of England
Graham of Finland
Ochs of Germany
Knight of Sweden
Harmsworth of Belgium
Pulitzer of W... | Hearst of England | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
The design idea of replacing the hydrogen atom at the 5th position of uracil with a fluorine atom is ( ).
===Choices
modifying the molecule to increase polarity
bioisosteric replacement
reducing metabolic degradation
introducing an electron-withdr... | bioisosteric replacement | general_qa | 115 |
The following is a multiple choice question (with answers).
===Question
For judicial officers who engage in favoritism and commit such acts, they should be ().
===Choices
Held accountable only for the misuse of their judicial position
Punished for perverting the court of law for selfish advantages
Convicted and senten... | Convicted and punished according to the more severe penalty provided for either the crime of perverting the law for personal gain or the crime of bribery | general_qa | 189 |
The following is a multiple choice question (with answers).
===Question
Which 2017 film by director Zhang Yimou depicts a heroic defense of a city during the Japanese invasion?
===Choices
The Silent Fortress
The Eastern Shield
The Guarded City
The Great Wall
The Mighty Defense
The Defiant Wall
The Last Stand
The Might... | The Great Wall | general_qa | 84 |
The following is a multiple choice question (with answers).
===Question
$ 5.1\ g$ of $NH_{4} SH $ is introduced in a $ 3.0\ L $ evacuated flask at $ 327 ^{\circ}C$. $30\ %$ of the solid $ NH_{4} SH $ is decomposed to $ NH_{4} and $ $H_{2} S $ as gases. The $ K_{p} $ of the reaction at $ 327 ^{\circ} C $ is $( R = 0.0... | $$ 4.9 \times 10^{-3}\ atm^{2}$$ | general_qa | 368 |
The following is a multiple choice question (with answers).
===Question
Who were the first two women MLAs elected from Nagaland on March 2, 2023?
===Choices
Nuzota Swuro and Nini Sekhose
Salhoutuonuo Kruse and Nuzota Swuro
Salhoutuonuo Kruse and Hekani Jakhalu
Rano M Shaiza and Khekiho Zhimomi
None of the other choice... | Salhoutuonuo Kruse and Hekani Jakhalu | general_qa | 128 |
The following is a multiple choice question (with answers).
===Question
The most common histological type of lung cancer in China is ( ).
===Choices
Clear Cell Carcinoma
adenocarcinoma
Small Cell Carcinoma
Squamous Cell Carcinoma
Mucinous Carcinoma
Transitional Cell Carcinoma
Spindle Cell Carcinoma
Large Cell Carcinom... | adenocarcinoma | general_qa | 100 |
The following is a multiple choice question (with answers).
===Question
${ Be }^{ +3 }$ and a proton are accelerated by the same potential,their de-Broglie wavelengths have the ratio:(Assume mass of proton = mass of neutron)
===Choices
$$\dfrac{1}{2\sqrt{2}}$$
$$1:3\sqrt { 3 } $$
\dfrac{1}{3\sqrt{3}}
$$1:4$$
\dfrac{1}... | $$\dfrac{1}{2\sqrt{2}}$$ | general_qa | 161 |
The following is a multiple choice question (with answers).
===Question
On what day, month, and year was Rana Ayyub (an Indian journalist) awarded the International John Aubuchon Award by the National Press Club (a professional organization and social community in Washington, D.C.)?
===Choices
28 August 2022
28 April ... | 28 June 2022 | general_qa | 152 |
The following is a multiple choice question (with answers).
===Question
A construction project needs to temporarily use the collective land of Zhao Village for geological exploration. The land user consulted Mr. Li on this matter. Which of the following opinions is correct?
===Choices
The temporary land shall be appro... | The land-using unit shall sign a contract with the villagers' committee of Zhao Village for the temporary use of the land and pay the compensation fee for the temporary use of the land | general_qa | 280 |
The following is a multiple choice question (with answers).
===Question
In a heat exchanger, kerosene is cooled using cold water. The water flows inside a steel pipe with a diameter of $\varphi1 9 \mathrm{mm} \times 2 \mathrm{mm}$, and the convective heat transfer coefficient of water is 3490 W/(m²·K), while the convec... | $$
3 3 8. 9 \mathrm{W / ~ ( m^{2} \cdot K )_{o}}
$$ | general_qa | 513 |
The following is a multiple choice question (with answers).
===Question
The area of the articular disc that has no neurovascular distribution in its organizational structure is ( ).
===Choices
The middle band of the articular disc
The central zone of the articular disc
The peripheral edge of the articular disc
The ant... | The middle band of the articular disc | general_qa | 126 |
The following is a multiple choice question (with answers).
===Question
What is the mode of mental activity formed by learning according to law?
===Choices
Analytical ability
Thinking program
Creative reasoning
Problem-solving strategy
Cognitive development
Intelligence
Intellectual skill
Behavioral conditioning
Knowl... | Intellectual skill | general_qa | 65 |
The following is a multiple choice question (with answers).
===Question
Who composed a popular Kashmiri song titled "Rah Bakshtam?"
===Choices
Lal Ded
Habba Khatoon
Lalita Kaul
Mehndi Hassan
Gulzar
Lalita Devi | Habba Khatoon | general_qa | 64 |
The following is a multiple choice question (with answers).
===Question
In which year was the novel 'Theegend of the Returning Sword' first published?
===Choices
1968
1949
1959
1956
1969
1955
1957
1958
1960
1979 | 1959 | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
Evaluate the given determinant.
$$|-3|$$
===Choices
9
3/(-1)
3
3/(-3)
3/3
-3
0
-9
1/3
1 | -3 | general_qa | 59 |
The following is a multiple choice question (with answers).
===Question
The Cenozoic Era includes the Paleogene, Neogene and Quaternary periods. The biological world is characterized by the great development of terrestrial gymnosperms and angiosperms, and is called __ or __. The Quaternary Period is called the Human Ag... | Age of mammals, Age of angiosperms | general_qa | 181 |
The following is a multiple choice question (with answers).
===Question
The fact that early excavators of Teotihuacán mistook ordinary housing compounds for palaces suggests:
===Choices
commoners took over the residences of the elite.
the city was abandoned and later occupied by a different civilization.
the excavator... | the general standard of living was high. | general_qa | 157 |
The following is a multiple choice question (with answers).
===Question
Principles of Population, first published in 1798, is the work of which British demographer?
===Choices
Thomas R. Malthus Jr.
Thomas R. Malthus III
Robert Malthus
Thomas Malthus Jr.
Thomas R. Malthus
Thomas Malthus
Thomas Malthus Sr.
Thomas R. Mal... | Thomas Robert Malthus | general_qa | 107 |
The following is a multiple choice question (with answers).
===Question
An object moves upward along a circular path. To maintain a constant horizontal speed of $v=200 \text{ mm/s}$, find the velocity and acceleration of the object when $\theta=0$ and $60^\circ$.
===Choices
$350mm/s$, $250mm/s^{2}$.
$300mm/s$, $300mm/... | $200mm/s$,$200mm/s^{2}$
$400mm/s$, $800mm/s^{2}$ | general_qa | 407 |
The following is a multiple choice question (with answers).
===Question
A particle of mass $2\ kg$ moves with an initial velocity of $(4\hat i +2\hat j)\ ms^{-1}$ on the $x-y$ plane. A force $\vec F=(2\hat i -8\hat j)N$ acts on the particle. The initial position of the particle is $(2\ m, 3\ m)$. Then for $x=3\ m$,
==... | Possible value of $x$ is only $x=2\,m $ | general_qa | 235 |
The following is a multiple choice question (with answers).
===Question
A steel tape is placed around the earth at the equator. When the temperature is $0 ^ { \circ } { C }$ neglecting the expansion of the earth, the clearance between the tape and the ground if he temperature of the tape rises to $30 ^ { \circ } { C... | $$1 ) 1 { km }$$ | general_qa | 200 |
The following is a multiple choice question (with answers).
===Question
Using multi-base signal to transmit binary sequences can save (), at the cost of ().
===Choices
Time; Signal-to-Noise Ratio
Energy; Bandwidth
Bandwidth; Processing Power
Bandwidth: Signal-to-Noise Ratio
Signal-to-Noise Ratio; Time
Time: Complexity... | Bandwidth: Signal-to-Noise Ratio | general_qa | 94 |
The following is a multiple choice question (with answers).
===Question
When inserting molds within the layer, it is necessary to consider the stacking style of the strata. In the regression erosion type stratigraphic style, when interpolating the internal stratigraphic layers, _______ should be used as the trend const... | Base or bottom surface | general_qa | 116 |
The following is a multiple choice question (with answers).
===Question
Which of the following is the normal upper diameter limit of the pulmonary artery?
===Choices
24.5 mm
21.8 mm
18.9 mm
19.7 mm
22.5 mm
16.4 mm
23.6 mm
29.1 mm
27.3 mm
25.0 mm | 21.8 mm | general_qa | 91 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements about dry bulb temperature, wet bulb temperature, and dew point temperature is correct?
===Choices
The dry bulb temperature of moist air is lower than the dew point temperature.
If air temperature drops below its ... | When the moist air reaches saturation, these three temperatures are equal. | general_qa | 196 |
The following is a multiple choice question (with answers).
===Question
Because atoms are spherical, they cannot occupy all of the space of the cube. The silver atoms pack in the solid in such a way that 74% of the volume of thesolid is actually filled with the silver atoms. Calculate the volume of a single silver atom... | $$
1 3 \, \text{Å}^{3} \, / \, \text{Ag atom}
$$ | general_qa | 281 |
The following is a multiple choice question (with answers).
===Question
How many styles do pear blossoms and plum blossoms typically have under normal circumstances?
===Choices
2:1
3;3
1; 2
5;1
5;5
4:4
1;5
3;1
1;1
2;2 | 5;1 | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
What was the first bridge in the world to use flat box streamlined stiffened beams to improve structural aerodynamic stability?
===Choices
Manhattan Bridge
Charles River Bridge
Sydney Harbour Bridge
London Tower Bridge
George Washington Bridge
Bro... | Golden Gate Bridge | general_qa | 93 |
The following is a multiple choice question (with answers).
===Question
Which of the following descriptions is true for sulfur hexafluoride (SF6) gas used in gas insulation?
===Choices
SF6 gas inhibits the formation of greenhouse gases with its chemical characteristics.
SF6 gas is a bio-friendly gas with acceptable el... | SF6 gas is a greenhouse gas with good electrical insulation properties. | general_qa | 176 |
The following is a multiple choice question (with answers).
===Question
When the Qiong Opera was performed in Thailand, how many times did Princess Sirindhorn attend the show?
===Choices
Seven times
Four times
Five times
Once
Six times
Three times
Nine times
Twice
Ten times
Eight times | Three times | general_qa | 68 |
The following is a multiple choice question (with answers).
===Question
If the long-term intermediate target of a country's monetary policy is the money supply, then this country should choose () as the short-term intermediate target?
===Choices
inflation rate
GDP growth rate
90-day Treasury bill rate
exchange rate
co... | base money | general_qa | 93 |
The following is a multiple choice question (with answers).
===Question
When a fluid flows in a circular straight tube, if it has entered the square resistance zone, what is the relationship between the friction coefficient λ and the Reynolds number Re?
===Choices
As Re increases, λ decreases exponentially
As Re decre... | As Re increases, λ remains basically unchanged | general_qa | 137 |
The following is a multiple choice question (with answers).
===Question
Alex and Mitchell decide to play a game. In this game, there are $2010$ pieces of candy on a table, and starting with Alex, the two take turns eating some positive integer number of pieces of candy. Since it is bad manners to eat the last candy, wh... | 167 | general_qa | 285 |
The following is a multiple choice question (with answers).
===Question
Is the unlawful homicide committed by Minister of country X abroad an act jure imperii or jure gestionis?
===Choices
Such conduct is neither a public nor a private act
Such conduct is a private act (jure gestionis)
Such conduct is a public act (ju... | Such conduct is a private act (jure gestionis) | general_qa | 152 |
The following is a multiple choice question (with answers).
===Question
What is a layered thrombus?
===Choices
Compound thrombus
White thrombus
Mixed Thrombus
Segmented thrombus
Clustered thrombus
Composite thrombus
Stacked thrombus
Continuing Thrombosis
Red thrombus
Transparent thrombus | Mixed Thrombus | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
What is a method of self-evaluation for self-monitoring of ethnic fitness exercises?
===Choices
Caloric Burn Rate
Breathing Rate
Sweat Production Level
Motion Range Depth
Physical Endurance
Heart Rate Count
Oxygen consumption
Overall Body Strength... | Exercise Intensity | general_qa | 77 |
The following is a multiple choice question (with answers).
===Question
What does COG 2C represent?
===Choices
Site Evaluation
New Construction
Aircraft Launch and Recovery Equipment
Historical Preservation
Depot Level Repairables (DLR)
Interior Design
Safety Compliance
Field Level Repairables (FLR)
Energy Efficiency
... | New Construction | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
The synthesis of deoxyadenosine monophosphate and deoxyguanosine monophosphate respectively utilizes___and___ as precursor substances, and is achieved through the reaction of ribonucleotide reductase.
===Choices
CDP; UDP
TMP; GMP
ATP; GTP
ADP; GDP... | AMP; GMP | general_qa | 103 |
The following is a multiple choice question (with answers).
===Question
The molal concentration of a dilute solution is $m$, the boiling point elevation is $\Delta T_{\mathrm{b}}$, and the freezing point depression is $\Delta T_{\mathrm{f}}$, then_____.
===Choices
$$
\Delta\, T_{\mathrm{b}} < 0
$$
$$
\Delta\, T_{\math... | $$
\Delta\, T_{\mathrm{f}} > \Delta\, T_{\mathrm{b}}
$$ | general_qa | 275 |
The following is a multiple choice question (with answers).
===Question
How many archways are used in the Chinese Chakra Zang temple of Chakra Zang?
===Choices
6
11
12
13
14
7
5
8
10
9 | 8 | general_qa | 61 |
The following is a multiple choice question (with answers).
===Question
Write the component matrices of the bivectors $\boldsymbol{e}_{3} \boldsymbol{e}_{1}$ and $\boldsymbol{e}_{1} \boldsymbol{e}_{3}$ in the Cartesian coordinate system.
===Choices
$$
\left[ \begin{matrix} {{0}} & {{0}} & {{0}} \\ {{1}} & {{0}} & {{0}... | $$
\left[ \begin{matrix} {{0}} & {{0}} & {{1}} \\ {{0}} & {{0}} & {{0}} \\ {{0}} & {{0}} & {{0}} \\ \end{matrix} \right]
$$ | general_qa | 624 |
The following is a multiple choice question (with answers).
===Question
Calculate the half-power beamwidth and directivity of a square aperture antenna with dimensions $5 \lambda \times 5 \lambda$ (assuming uniform amplitude and phase) and a circular aperture antenna with a diameter $D = 5 \lambda$ (assuming uniform am... | 0.178,0.204 | general_qa | 193 |
The following is a multiple choice question (with answers).
===Question
In SQL Server 2000, the common database backup methods include full backup, differential backup, and log backup. In order to ensure the reliability of a database, it is necessary to use these three methods to back up the database. The following sta... | The periods for these three types of backup operations can vary, and they can be backed up on different backup devices. | general_qa | 321 |
The following is a multiple choice question (with answers).
===Question
How much (in USD) was Frida's self-portrait with loose hair sold for in an auction by Christie's, New York, in May of 1991?
===Choices
1.66 million
1.55 million
1.56 million
1.70 million
1.75 million
1.64 million
1.60 million
1.65 million
1.63 mil... | 1.65 million | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
In educational practice, what is the principle of training children to learn to rely on their own experience and ability to take the initiative in activities?
===Choices
Collaboration principle
Principle of activity
The principle of comprehensiven... | The principle of independence | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
A saturated clay layer with a thickness of $6 \mathrm{m}$ is underlain by an incompressible impermeable layer. The vertical consolidation coefficient of the clay layer is known to be $C_{v} = 0.0045 \mathrm{cm^{2}/s}$, and the unit weight is $\gamm... | $$ 0. 5 1 \mathrm{y e a r}
$$ | general_qa | 401 |
The following is a multiple choice question (with answers).
===Question
What does the overall separation efficiency of a cyclone separator refer to?
===Choices
The overall efficiency related to the volume of the cyclone chamber
The size distribution of particles departing from the cyclone
Average separation efficiency... | The mass fraction of particles isolated from all particles in the total particle count. | general_qa | 163 |
The following is a multiple choice question (with answers).
===Question
____ laid the foundation for naturalistic theory of happiness.
===Choices
Socrates
Democritus
Pythagoras
Zeno
Aristippus
Plato
Anaxagoras
Epicurus
Thales
Heraclitus | Democritus | general_qa | 67 |
The following is a multiple choice question (with answers).
===Question
Which of the following is the fundamental principle for decorative design?
===Choices
The base layer should incorporate variable
The surface of the top layer should be coarse
Ensure the underlayer is randomly structured
The base layer must always ... | The surface of the base layer must be level | general_qa | 112 |
The following is a multiple choice question (with answers).
===Question
What causes skeletal muscles to undergo complete tetanic contraction?
===Choices
The duration of the action potential exceeds the contraction phase of muscle contraction.
The duration of the action potential is shorter than the relaxation phase of... | The contraction phase of phasic muscle contraction during the action potential period | general_qa | 166 |
The following is a multiple choice question (with answers).
===Question
Reactive dyes can be categorized into various types according to the active groups: homotriazine reactive group, pyrimidine reactive group, vinyl sulfone reactive group, () reactive group, and composite reactive group.
===Choices
trinitrophenyl
ca... | phosphonate | general_qa | 116 |
The following is a multiple choice question (with answers).
===Question
The potential energy function for the force between two atoms in a diatomic molecule is approximately given by $U\left( x \right) = \frac{a}{{_x12}} - \frac{b}{{_x6}}$ , where a nad b are constants and x is the distance between the atoms. If the di... | $$\dfrac{{{b^2}}}{{2a}}$$ | general_qa | 270 |
The following is a multiple choice question (with answers).
===Question
Which rock might undergo flowage folding?
===Choices
Granite
Marble
Shale
Limestone
Quartzite
Slate
Dolomite
Gneiss
Basalt
Gypsum | Gypsum | general_qa | 57 |
The following is a multiple choice question (with answers).
===Question
Polyester, cotton, and linen are listed in descending order of moisture absorption ().
===Choices
Hemp, polyester, cotton
Cotton, Polyester, Rayon Hemp
Polyester, cotton, linen
Hemp, cotton, polyester
Hemp, Cotton = Polyester
Polyester, Linen=Cott... | Hemp, cotton, polyester | general_qa | 108 |
The following is a multiple choice question (with answers).
===Question
The head of the sixth rib articulates with
===Choices
The inferior articular demifacet of T6 and the superior articular demifacet of T7.
The superior articular facet of T5 and the inferior articular facet of T6.
The inferior articular demifacet of... | The inferior articular demifacet of T5 and the superior articular demifacet of T6. | general_qa | 201 |
The following is a multiple choice question (with answers).
===Question
$A$ wire $AB$ of length 1m has a sliding support at one end $A$ and fixed support at end $B$. This wire is vibrated by a tuning fork of frequency $100 Hz$ due to which the wire $AB$ vibrates in its fundamental tone.
The particle at point A is vibr... | $$y (x, t) = (10 mm) \cos \left ( \frac{\pi} {2} x \right ) \sin \left ( 200 \pi t \right )$$ | general_qa | 625 |
The following is a multiple choice question (with answers).
===Question
For an adiabatic irreversible process involving an ideal gas:
===Choices
$$\Delta W=nC_{v}\Delta T$$
$$\Delta U=P_{ext.}(V_{1}+V_{2})$$
$$\Delta U=P_{ext.}(V_{1}-V_{2})$$
$$\Delta U=nC_{v}\Delta T$$
$$\Delta U=-nC_{v}\Delta T$$
$$\Delta U=-P_{ext.... | $$\Delta U=nC_{v}\Delta T$$ | general_qa | 128 |
The following is a multiple choice question (with answers).
===Question
Stevenson claims that the primary use of ethical judgments is to:
===Choices
demonstrate superior knowledge.
provide a basis for legislation.
state facts.
describe one's own approval of things.
influence the interests of others.
none of the above.... | influence the interests of others. | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
The operating system provides users with two types of interfaces, what are they?
===Choices
Application Interface, Device Interface
Hardware Interface, Software Interface
Application Interface, Control Interface
Program Interface, Command Interfac... | Program Interface, Command Interface | general_qa | 91 |
The following is a multiple choice question (with answers).
===Question
A distillation column is operated with F, xF, q, and V held constant and the reflux ratio R is increased, at which point xD(), xW(), D(), and L/V().
(increased, unchanged, decreased)
===Choices
Decrease, decrease, decrease, decrease
Increase, incr... | Increase, decrease, decrease, increase | general_qa | 148 |
The following is a multiple choice question (with answers).
===Question
What's the DOI of the paper 'Semantic maps of causation: New hybrid approaches based on corpora and grammar descriptions' (Levshina 2022)?
===Choices
10.1515/zfs-2021-2040
10.1515/zfs-2022-2043
10.1515/zfs-2021-2042
10.1515/zfs-2021-2048
10.1515/z... | 10.1515/zfs-2021-2043 | general_qa | 252 |
The following is a multiple choice question (with answers).
===Question
What kind of clinical manifestation can myopia have?
===Choices
No occurrence of floaters
No abnormal eye position
The eyes will not feel any discomfort
The retina shows no changes.
The shape of the eyeball is normal.
Near vision is normal
The int... | Prone to visual fatigue | general_qa | 96 |
The following is a multiple choice question (with answers).
===Question
What is the correct statement about different-aged forests?
===Choices
The stands of less tolerant tree species such as cedar are mostly of different ages.
The stands of more tolerant tree species such as maple are mostly of the same age.
The stan... | The stands of more tolerant tree species such as fir are mostly of different ages. | general_qa | 197 |
The following is a multiple choice question (with answers).
===Question
The digital RMB issued by the People's Bank of China is mainly __.
===Choices
government bond equivalent
current deposits
digital savings account
physical currency replacement
cryptocurrency alternative
narrow money M1
foreign exchange reserves
br... | circulating key currency M0 | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
Through what channels do $\mathrm{O_2}$ and $\mathrm{CO_2}$ enter the cell membrane in the human body?
===Choices
Osmotic Pressure
Cellular Beverage
Endocytosis Mechanism
Ion Exchange Channel
Lipid Transporter
Facilitated Diffusion
Intracellular R... | Active Transport | general_qa | 95 |
The following is a multiple choice question (with answers).
===Question
On what month, day, and year did Google run its first live-action video doodle?
===Choices
April 15, 2017
April 15, 2012
April 15, 2013
April 15, 2015
April 15, 2009
April 15, 2011
April 15, 2010
April 15, 2018
April 15, 2016
April 15, 2014 | April 15, 2011 | general_qa | 145 |
The following is a multiple choice question (with answers).
===Question
What month, day, and year did the Durban-based shack-dwellers' movement Abahlali baseMjondolo take the KwaZulu-Natal government to court over their controversial Elimination and Prevention of Re-Emergence of Slums Act?
===Choices
14 May 2005
14 Ma... | 14 May 2009 | general_qa | 160 |
The following is a multiple choice question (with answers).
===Question
Student Xiao Wang from Class 1, Grade 2 drew a cartoon on the blackboard and wrote 'The class leader is the teacher's little follower.' After seeing it, Teacher Feng, the homeroom teacher, found that the cartoon truly captured his features and beli... | Principle of Building on Strengths and Correcting Weaknesses | general_qa | 279 |
The following is a multiple choice question (with answers).
===Question
Piston cylinder device initially contains $0.5\:m^3$ of nitrogen gas at $400\:kPa$ and $27^\circ C$. An electric heater within the device is turned on and is allowed to pass a current of $2\:A$ for $5\:min$ from a $120\:V$ source. Nitrogen expands ... | $$56.6^\circ C$$ | general_qa | 227 |
The following is a multiple choice question (with answers).
===Question
When checking the impurity limit of a drug, weigh the test sample W(g), measure the volume of the standard solution of the impurity to be examined as V(mL), and the concentration as C(g/mL), then what is the impurity limit of the drug?
===Choices
... | V·C/W×100% | general_qa | 157 |
The following is a multiple choice question (with answers).
===Question
Light falling on metallic surface of work function $2eV$ is given by $B = (100V/m)[\sin(5 \times 10^{15}s^{-1})t + \sin(8 \times 10^{15})t]$. Then maximum kinetic energy of the photo-electrons is:-
===Choices
$$4.17\ eV$$
$$6.58 \ eV$$
4.58 \ eV
6... | $$6.58 \ eV$$ | general_qa | 175 |
The following is a multiple choice question (with answers).
===Question
The substrate concentration for a certain enzyme is $6 \times 10^{-4} M \, (K_{m} = 10^{-3} M)$, and the concentration of the non-competitive inhibitor is $2.5 \times 10^{-4} (K_{i} = 3 \times 10^{-5} M)$, with $V_{\mathrm{m}} = 515 \mathrm{n}M \ti... | 20.7 Nanomoles $\times$litres $^{-1}\times$cents $^{-1},89.3\%$ | general_qa | 446 |
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