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
Copper normally solidifies at a temperature of 1356°K, but canexist in the super-cooled liquid form up to a temperature of1120°K, after which it starts solidifying spontaneously. Determine the entropy change for the solidification of copper atits t... | - 2.23 cal deg^-1 mole^-1 | general_qa | 308 |
The following is a multiple choice question (with answers).
===Question
Three-phase bridge converter circuit, given $U_{2 L}=230 \mathrm{V}$, with back electromotive force and inductive-resistive load, main circuit resistance $R=0.8 \Omega$, $L=\infty$. Assuming continuous and smooth current, when $E_{\mathrm{M}}=-290 ... | $$
I_{d}\approx2 6 ( \mathrm{A} ),
$$
$$
I \approx2 6 ( \mathrm{A} )
$$ | general_qa | 485 |
The following is a multiple choice question (with answers).
===Question
In narrative works, what is the cause of events and plot developments that is considered more important than the plot itself?
===Choices
Narration.
Character.
Symbolism.
Perspective.
Tone.
Theme.
Dialogue.
Setting.
Style.
Conflict. | Character. | general_qa | 64 |
The following is a multiple choice question (with answers).
===Question
A coffee-cup calorimeter of the type contains 150.0 g
of water at 25.1 °C. A 121.0-g block of copper metal is heated to 100.4 °C by putting it in a beaker of boiling water. The specific heat of $\mathrm{C u} ( s )$ is $0. 3 8 5 J / \mathrm{g·K}$ Th... | $$
4 \times1 0 \, \mathrm{J / K}.
$$ | general_qa | 406 |
The following is a multiple choice question (with answers).
===Question
The coordinates of a certain point in the 6° Gaussian projection zone are represented as $X_{A}= 3026255$m, $Y_{A}= 20478561$m. Therefore, the actual coordinates of this point in the 3° Zone 39 are $x_{A}$= _____, $y_{A}$= _____, and the central me... | $3026255m,-21438m,117°$ | general_qa | 353 |
The following is a multiple choice question (with answers).
===Question
In a certain amplifier circuit, the input resistance is $R_{i}=10 \ \ \mathrm{k} \Omega$. If it is driven by a 1 μA current source (with an internal resistance of $\infty$), the short-circuit output current of the amplifier circuit is 10 mA, and th... | $$
\approx5 8 \mathrm{~ d B}
$$
$$
\approx6 6 \mathrm{~ d B}
$$
$$
\approx6 2 \mathrm{~ d B}
$$ | general_qa | 631 |
The following is a multiple choice question (with answers).
===Question
Which of Puccini's works fall under operas with a realistic tendency?
===Choices
"Turandot"; "La Traviata"; "La Rondine".
"Carmen"; "Il Tabarro"; "La Cenerentola".
"Carmen"; "Il Trovatore"; "La Fanciulla del West".
"La Traviata"; "Rigoletto"; "Nor... | "Tosca"; "La Vie de Bohème"; "La Bohème". | general_qa | 197 |
The following is a multiple choice question (with answers).
===Question
The "Wu Songs of Jiangnan" and the "Western Melodies of Jingchu" both belong to _____.
===Choices
"Tangzhou Folk Music"
"Ancient Zhou Rhapsodies"
"Min River Serenades"
"Spring River Songs"
"Melodies of Yunxi"
"Shifan of the South"
"Han Dynasty Hym... | "Qing Shang Xi" | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
Derive the leading term of the heat capacity of a three-dimensional ferromagnet at low temperatures $k_{B}T<<J$ using the formula of dispersion relation of magnon $\omega = A k^{2}$, which is ().
===Choices
$$
\approx0. 2 0 1 k_{B} \Big( 2k_{B} T ... | $$
\approx0. 1 1 3 k_{B} \Big( k_{B} T / \hbar A \Big)^{3 / 2}
$$ | general_qa | 484 |
The following is a multiple choice question (with answers).
===Question
The following descriptions of representatives and their works in Russian modernist literature are correct:
I. The earliest group in Russian Futurism is the Ego-Futurists, represented by Igor Severyanin (Игорь Северянин).
II. The largest and most in... | I and II and III and IV and V | general_qa | 432 |
The following is a multiple choice question (with answers).
===Question
The emission series of hydrogen atom is given by $\dfrac {1}{\lambda} = R\left (\dfrac {1}{n_{1}^{2}} - \dfrac {1}{n_{2}^{2}}\right )$ where $R$ is the Rydberg constant. For a transition from $n_{2}$ to $n_{1}$, the relative change $\triangle \lamb... | $0.025$% | general_qa | 225 |
The following is a multiple choice question (with answers).
===Question
The occurrence and development of hydrological phenomena have causes, therefore, how about their changes?
===Choices
There is a disorderly pattern
There is an unpredictable rule
There is a complete deterministic law
With chaotic laws
There is no a... | There is a law of cause | general_qa | 91 |
The following is a multiple choice question (with answers).
===Question
The Fourth Plenary Session of the 19th CPC Central Committee adopted the Decision of the CPC Central Committee on Upholding and Improving the System of Socialism with Chinese Characteristics and Modernizing China's System and Capacity for Governanc... | Improving a grassroots governance system in urban and rural areas that combines self-governance, rule of law, and moral governance under the leadership of the Party organization | general_qa | 379 |
The following is a multiple choice question (with answers).
===Question
A train moves from rest with acceleration $\alpha$ and in time ${t}_{1}$ covers a distance $x$. It then decelerates to rest at constant retardation $\beta$ for distance $y$ in time ${t}_{2}$. Then
===Choices
$$\cfrac { \alpha }{ \beta } =\cfrac { ... | $$\cfrac { \beta }{\alpha } =\cfrac { { t }_{ 1 } }{ { t }_{ 2 } } $$ | general_qa | 380 |
The following is a multiple choice question (with answers).
===Question
Which type of monosaccharide is absorbed the fastest by the small intestine?
===Choices
Erythrose
Ribose
Sedoheptulose
Fructose
Galactose
Mannose
Trehalose
Xylose
Glucose
Ribulose | Galactose | general_qa | 75 |
The following is a multiple choice question (with answers).
===Question
Where did Everett Worthington obtain his bachelor's degree in nuclear engineering?
===Choices
University of Texas
University of Texas at San Antonio
University of Texas at Dallas
University of Texas at Houston
University of Texas at El Paso
Univer... | University of Tennessee | general_qa | 90 |
The following is a multiple choice question (with answers).
===Question
The soil type suitable for Masson Pine is ( ).
===Choices
Fertile soil
Barren Soil
Clayey soil
Dry soil
Sandy soil
Loose soil
Moist soil
Silt soil
Calcareous soil
Acidic soil | Sandy soil | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
The width of the strip foundation is $3.6 \mathrm{m}$, with the self-weight of the foundation and the weight of the soil on the foundation being $G_{\mathrm{k}}=100 \mathrm{kN/m}$. The vertical force transmitted from the superstructure to the top s... | 116kPa | general_qa | 222 |
The following is a multiple choice question (with answers).
===Question
In which opera house was the English abridged version of Mozart's 'The Magic Flute' performed on December 30, 2006?
===Choices
La Scala Opera House
Royal Opera House
Metropolitan Opera House
Sydney Opera House
Vienna State Opera
Berlin State Opera... | Metropolitan Opera House | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
What day, month, and year was the first flight of the Boeing-Saab T-7 Red Hawk?
===Choices
20 December 2010
20 December 2014
20 December 2011
20 December 2012
20 December 2018
20 December 2019
20 December 2017
20 December 2013
20 December 2015
20 ... | 20 December 2016 | general_qa | 128 |
The following is a multiple choice question (with answers).
===Question
Two blocks of masses $4kg$ and $10kg$ are connected with a massless string and a massless spring in between them. String goes over a massless and frictionless pulley as shown in figure. Initially the spring is unstretched, when $4kg$ block is relea... | $$Zero$$ | general_qa | 173 |
The following is a multiple choice question (with answers).
===Question
Define $C(\alpha)$ to be the coefficient of $x^{1992}$ in the power series about $x=0$ of $(1 + x)^\alpha$. Evaluate \[ \int_0^1 \left( C(-y-1) \sum_{k=1}^{1992} \frac{1}{y+k} \right)\,dy. \]
===Choices
1992
1991.75
1991
1993
1994
1990
1992.25
199... | 1992 | general_qa | 164 |
The following is a multiple choice question (with answers).
===Question
Water distribution pipeline materials generally include ( ), steel pipes, polyethylene pipes, hard polyvinyl chloride pipes, etc.
===Choices
Aluminum alloy pipe
Copper pipe
Glass fiber reinforced plastic pipe
Ductile iron pipe | Glass fiber reinforced plastic pipe | general_qa | 61 |
The following is a multiple choice question (with answers).
===Question
The heat of ionisation of formic acid is $1.5$ $kJ/mol$. $9.2$ $g$ formic acid on reaction with $7$ $g$ ammonium hydroxide gives $10.8$ $kJ$ of heat. Calculate the heat of ionisation of ammonium hydroxide. ($1$$cal$=$4.2$$J$)
===Choices
$-160$ $kJ... | $-240$$kJ/mol$ | general_qa | 178 |
The following is a multiple choice question (with answers).
===Question
In the known three-phase fully-controlled bridge rectifier circuit, $U_{2}=230 \mathrm{V}$, $E_{\mathrm{M}}=290 \mathrm{V}$, and the total armature circuit resistance is $R=0.8 \, \Omega$. If the circuit operates in inversion mode and the current i... | $$
\beta_{\mathrm{m i n}}=6 0^{\circ}
$$
$$
U_{\mathrm{e}}=( 1 1 2 6. 7 7 {\sim} 1 6 9 0. 1 5 ) \mathrm{V}
$$ | general_qa | 822 |
The following is a multiple choice question (with answers).
===Question
In the context of atmospheric physics, what term describes the change in pressure with altitude?
===Choices
Barometric gradient
Pressure gradient shift
Isobaric stability
Hydrostatic balance
Barometric equilibrium
Lapse rate
Pressure altitude shif... | Hydrostatic balance | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
A certain platinum-resistance thermometer has a resistance of 9.20 ohms when immersed in a triple-point cell. When the thermometer is placed in surround-ings where its resistance becomes 12.40 ohms, what temperature will it show?
===Choices
345.2 ... | 368.1 K | general_qa | 140 |
The following is a multiple choice question (with answers).
===Question
Which of these is a type of a artwork consisting of pieces of wood inlaid in geometric patterns?
===Choices
carquetry
sharquetry
harquetry
jarquetry
larquetry
parquetry
marquetry
tarquetry
rarquetry
zarquetry | parquetry | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
The speed of sound in a certain metal is $V$. One end of a long pipe of that metal of length $L$ is struck a hard blow. A listener at the other end hears two sounds, one from the wave that has travelled along the pipe and the other from the wave th... | Length $L$ is $364\ m$ | general_qa | 232 |
The following is a multiple choice question (with answers).
===Question
Conductor ABC consist of two quarter circular path of radius R lies in X-Y plane and carries current I as shown. A uniform magnetic field $ \overrightarrow { B } $ is switched on in the region that exert force $ \overrightarrow { F } =\sqrt { 2 } ... | $$ \dfrac { { B }_{ 0 } }{ \sqrt { 2 } } \hat { i } $$ | general_qa | 483 |
The following is a multiple choice question (with answers).
===Question
Calculate the change in molar entropy when a sample of argon is compressed from 2.0 dm$^{3}$ to 500 cm$^{3}$ and simultaneously heated from 300 K to 400 K is(). Take $C_{V, \mathrm{m}}={\frac{3} {2}} R$.
===Choices
$$
- 8. 5 \mathrm{~ J ~ K^{-1} ~... | $$
- 7. 9 \mathrm{~ J ~ K^{-1} ~ m o l^{-1} ~}
$$ | general_qa | 381 |
The following is a multiple choice question (with answers).
===Question
It is known that the system uses a 32-bit physical address, a 48-bit virtual address, a page size of 4KB, a page table entry size of 8B, and the maximum size of each segment is 4GB.
Assume the system uses a single-level page table, the TLB hit rate... | $$
1 1 2 \mathrm{n s}
$$ | general_qa | 277 |
The following is a multiple choice question (with answers).
===Question
Which of the following is the purpose of an outbreak investigation?
===Choices
Identify the cause of the disease outbreak.
Establish rapid solutions for outbreak suppression.
Clarify the cause of the disease as soon as possible.
Summarizing lesson... | Clarify the cause of the disease as soon as possible. | general_qa | 115 |
The following is a multiple choice question (with answers).
===Question
The particle size range of soil physical clay is:
===Choices
>0.04mm
>0.07mm
>0.01cm
>0.05mm
<0.01mm
>0.02mm
>0.03mm
>0.01mm
<0.01cm
>0.06mm | <0.01mm | general_qa | 96 |
The following is a multiple choice question (with answers).
===Question
A car is moving with uniform acceleration along a straight line between two stops X and Y, Its speed at X and Y are $\displaystyle 2\ ms^{-1}$ and $\displaystyle 14\ ms^{-1}$. Which of the following statements is(are) correct.
===Choices
the time ... | the time to go from X to the mid-point of XY is double of that to go from mid-point to Y | general_qa | 303 |
The following is a multiple choice question (with answers).
===Question
If the equation $\frac{dy}{dx} = y^2$ is defined in the strip $-2 < x < 5$, then the interval of existence for its solution passing through the point $(1, -1)$ is ().
===Choices
(0,5)
(1,6)
(-5,-2)
(-1,4)
(-2,3)
(-3,2)
(-3,-5)
(2,6)
(-2, -4) | (0,5) | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
A $40 \,kg$ boy swinging on a swing, the power delivered by gravity force is, when the swinging is making an angle $30^0$ with horizontal and the boy moving with a velocity of $8\,m/s$ upward $(g=10\,m/s)$
===Choices
$-1200 \sqrt{3} \,W$
$-500$W
-... | $-1600 \sqrt{3}$ W | general_qa | 177 |
The following is a multiple choice question (with answers).
===Question
What are the physiological functions of Wei Qi?
===Choices
Cooling the internal organs, skin and fur
Warming the internal organs, skin and fur
Warming the external tissues, bones, and nails
Cooling the internal muscles, bones, and sweat glands
Reg... | Warming the internal organs, skin and fur | general_qa | 133 |
The following is a multiple choice question (with answers).
===Question
When the coefficient $c_{j}$ of a non-basic variable $x_{j}$ fluctuates, the changed items in the optimal tableau are ( ).
===Choices
Feasibility of the solution
Slack variable values shift
Simplex multipliers
Constant term
Total number of iterati... | The reduced cost of the non-basic variable | general_qa | 101 |
The following is a multiple choice question (with answers).
===Question
In a certain particle accelerator, particles are accelerated in a container with a pressure of $1.3 \times 10^{-4} \, \mathrm{Pa}$ and a temperature of 273 $\mathbf{K}$. If the molecular diameter of the gas is $2.0 \times 10^{-10} \mathrm{~m}$, wha... | $$
\overline{{{{\lambda}}}}=1. 6 \times1 0^{2} \mathrm{~ m}
$$ | general_qa | 425 |
The following is a multiple choice question (with answers).
===Question
If an \( n \)th order square matrix \( A \) is similar to some diagonal matrix, then ( )
===Choices
\( A \) has \( n \) linearly independent eigenvectors and is diagonalizable
\( A \) has \( n \) linearly independent eigenvectors and is symmetric
... | \( A \) has \( n \) linearly independent eigenvectors | general_qa | 213 |
The following is a multiple choice question (with answers).
===Question
What is the approximate time required for sperm production in the body?
===Choices
One week
Three weeks
Two months
Six weeks
Five weeks
Eight weeks
Four weeks
Three months
One month
One day | Two months | general_qa | 59 |
The following is a multiple choice question (with answers).
===Question
Which nutrient is essential for the optimal development of fruit trees?
===Choices
Magnesium
Phosphorus
Zinc
Copper
Sulfur
Potassium
Iron
Manganese
Calcium
Nitrogen | Potassium | general_qa | 59 |
The following is a multiple choice question (with answers).
===Question
When evaluating literary works, the art standard is used to assess their artistic quality, so what is the criterion for measuring the correctness of their ideological content?
===Choices
Standards of Philosophical Depth.
Guidelines of Emotional Im... | Standards of Thought. | general_qa | 114 |
The following is a multiple choice question (with answers).
===Question
One gram of the silver salt of organic dibasic acid on strong heating yields, $0.6$ g of silver approximately. Determine the molecular formula of the acid. [Atomic weight of $Ag=$$108 g$]
===Choices
C_{4}H_{6}O_{7}
$$C_{4}H_{6}O_{4}$$
$$C_{4}H_{8}... | $$C_{4}H_{6}O_{6}$$ | general_qa | 200 |
The following is a multiple choice question (with answers).
===Question
There are three resistors: 100 ohms, 1 kΩ, and 10 kΩ, each with a rated power of 0.25 W. Currently, these three resistors are connected in series. If the 1 kΩ resistor actually consumes 0.1 W of power, what is the relationship between the voltage a... | $$
U_{1} < U_{\mathrm{1 H}}, U_{2} < U_{\mathrm{2 H}}, U_{3} > U_{\mathrm{3 H}}
$$ | general_qa | 528 |
The following is a multiple choice question (with answers).
===Question
The flow rate that minimizes the sum of pipeline cost and management expenses (mainly electricity) within a certain period of time (investment repayment period) is ( ).
===Choices
Economic velocity
Minimum economic flow rate
Constant minimum flow ... | Economic velocity | general_qa | 99 |
The following is a multiple choice question (with answers).
===Question
Citizens have the right to supervise, report, and____ against actions that pollute and damage the environment.
===Choices
enforce rules
impose restrictions
claim damages
seek repercussions
demand fines
advocate policies
apply sanctions
propose law... | file charges | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
A common data transfer function is ().
===Choices
fgets()
write()
WSASend()
fputs()
bind()
fopen()
connect()
fclose()
listen()
read() | WSASend() | general_qa | 49 |
The following is a multiple choice question (with answers).
===Question
Suppose that Earth were a perfectly smooth sphere. If you drew a circle of radius $D=1 0 0 \, \mathrm{m e}$ ters on Earth's surface, what discrepancy would you find between the expected and measured values of the circle's circumference?
===Choices... | $$
2 5. 7 \mathrm{~ n m}
$$ | general_qa | 242 |
The following is a multiple choice question (with answers).
===Question
A woman attended a private university. One afternoon she was approached by a photographer for a magazine, who asked her if she would be interested in posing nude for an upcoming issue. The woman, who was an aspiring model, agreed and posed for a nu... | hear the case. | general_qa | 277 |
The following is a multiple choice question (with answers).
===Question
What is the recommended Aedes aegypti index value to ensure freedom from yellow fever?
===Choices
<1%
<3%
<1.5%
<0.5%
<0.8%
<2%
<0.2%
<1.1%
<5%
<0.1 % | <1% | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is primes whose binary representation encodes a polynomial that is reducible over the Galois Field GF(2). Given the input x_list (a series of values): [54, 55, 56, 57, 58, 59, 60, 61, 62, 63], dete... | [449, 457, 461, 467, 479, 491, 503, 509, 521, 523] | general_qa | 611 |
The following is a multiple choice question (with answers).
===Question
In a homogeneous disk with a radius of $R=1$ m, a circular hole with a radius of $r$ is drilled at a distance $l$ from the center. Both $l$ and $r$ can take on various values. They are considered as independent random variables following a Gaussian... | $$4. 2 \times1 0^{-4} \, \mathrm{m}$$ | general_qa | 429 |
The following is a multiple choice question (with answers).
===Question
For A→B→C (stable), assuming only A exists at t=0, which of the following statements is correct?
===Choices
The maximum activity of the daughter is reached only when the decay constant of A is twice that of B.
The maximum activity of the daughter ... | There is always a moment when a daughter reaches its maximum activity. | general_qa | 247 |
The following is a multiple choice question (with answers).
===Question
If a culture of bacteria doubles in $3$ hours, how many hours does it take to multiply by $10$? Use $y=y_{0} \cdot e^{k \cdot t}$, where $y_{0}$ is the beginning amount, $y$ is the ending amount, $k$ is the growth or decay rate, and $t$ is time. Le... | 3 * ln(10) / ln(2) | general_qa | 245 |
The following is a multiple choice question (with answers).
===Question
A $3.0$ g sample containing $Fe_{3}O_{4}$, $Fe_{2}O_{3}$ and an inert impure substance is treated with excess of $KI$ solution in the presence of dilute $H_{2}SO_{4}$. The entire iron is converted into $Fe^{2+}$ along with the liberation of iodine.... | $$$Fe_{2}O_{3}=49.33\%$, $Fe_{3}O_{4}=34.8\%$$$ | general_qa | 619 |
The following is a multiple choice question (with answers).
===Question
For a shaft with a depth of 500m constructed using conventional methods, during completion inspection and acceptance, the total water leakage should not exceed ( ).
===Choices
$2\ m^3/h$
$4\ m^3/h$
$5\ m^3/h$
$1\ m^3/h$
$10\ m^3/h$
$6\ m^3/h$
$7\ ... | $6\ m^3/h$ | general_qa | 130 |
The following is a multiple choice question (with answers).
===Question
The 50 mL buret used in the experiment, the reading error is ±0.01mL, if the relative error of the measurement result is required to be ≤±0.1%, then the volume of titrant should be controlled at ( ) mL; in practice, this requirement can be generall... | 20; reducing the concentration of standard solution; increasing the mass of sample | general_qa | 239 |
The following is a multiple choice question (with answers).
===Question
A mixture of ordinary hydrogen and its isotope, tritium (whose nucleus is approximately three times massive than ordinary hydrogen) is excited and its spectrum is studied. Calculate the shift in wavelength for the $H_lpha$ lines in Balmer series.... | $$\dfrac{5}{36}R_H$$ | general_qa | 257 |
The following is a multiple choice question (with answers).
===Question
The feather color in a type of parrot is controlled by two pairs of non-allelic genes. The dominant allele Y guides the production of yellow pigment, while the dominant allele B guides the production of blue pigment. When yellow and blue pigments c... | YyBb and Yybb | general_qa | 212 |
The following is a multiple choice question (with answers).
===Question
Under the same observation conditions, the length of a certain distance was measured 5 times, and the lengths for each measurement were as follows: 139.413, 139.435, 139.420, 139.428m, 139.444. What is the relative standard error of the arithmetic ... | $1/27885$ | general_qa | 193 |
The following is a multiple choice question (with answers).
===Question
How tall are the colossal statues of Amenhotep III and Queen Tiye?
===Choices
7 meters
7.5 meters
7.1 meters
6.5 meters
6.9 meters
6.6 meters
7.2 meters
6.7 meters
6.8 meters
7.3 meters | 7 meters | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
What is the name of the project that won the 2014 ACM Software System Award?
===Choices
seL4
Andrew File System (AFS)
Mach
CompCert
Berkeley DB
MINIX | Mach | general_qa | 60 |
The following is a multiple choice question (with answers).
===Question
Who is the seminal person who has done pioneering work in relational logic?
===Choices
Richard Dedekind
Bertrand Russell
Gottfried W. Leibniz
Gottlob Frege
John Venn
Alfred North Whitehead
Augustus De Morgan
Ludwig Wittgenstein
David Hilbert
Georg... | Augustus De Morgan | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
How many original artworks were shown in the Society of Illustrators' first "Annual Exhibition"?
===Choices
354
348
355
350
346
349
351
352
353
347 | 350 | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
Consider the reaction(i)$2CO+2{ H }_{ 2 }O\ \overset { { K }_{ 1 } }{ \rightleftharpoons } \ 2{ CO }_{ 2 }+2{ H }_{ 2 }$(ii)${ CH }_{ 4 }+{ H }_{ 2 }O\ \overset { { K }_{ 2 } }{ \rightleftharpoons } \ CO+3{ H }_{ 2 }$(iii)${ CH }_{ 4 }+2{ H }_{ 2... | $${ k }_{ 3 }=\dfrac { { k }_{ 1 } }{ { k }_{ 2 } }$$ | general_qa | 520 |
The following is a multiple choice question (with answers).
===Question
Salinity is defined as the total number of grams of solid matter contained in one kilogram of seawater after all bromides and iodides have been replaced with chlorides, carbonates have been converted to oxides, and organic matter has been oxidized.... | Total grams of solid matter | general_qa | 146 |
The following is a multiple choice question (with answers).
===Question
Which aspect of physical fitness characteristics determines the endurance of athletes in showcasing the competitive ability of aesthetic and challenging event group training?
===Choices
Flexibility Training
Skill Technique
Anaerobic Capacity
High ... | Physical Fitness | general_qa | 75 |
The following is a multiple choice question (with answers).
===Question
Among the following options, which description of the "ecologically fragile zone" is correct?
===Choices
In ecosystems, the interface formed between two or more systems of matter, energy, structures, and functions, as well as the spatial domain of... | In ecosystems, the interface formed between two or more systems of matter, energy, structures, and functions, as well as the spatial domain of the "transition zone" that extends outward from this interface. | general_qa | 349 |
The following is a multiple choice question (with answers).
===Question
Use two circular permutations of the variables $x$, $y$, and $z$ to write new integral whose value equal the value of the original integral. A circular permutation of $x$, $y$, and $z$ is the arrangement of the numbers in one of the following order... | ∫_{0}^1 ∫_{1}^3 ∫_{2}^4 (y^2 * x^2 + 1) dy dz dx, ∫_{0}^1 ∫_{1}^3 ∫_{2}^4 (z^2 * y^2 + 1) dz dx dy | general_qa | 544 |
The following is a multiple choice question (with answers).
===Question
Acid dyes can be divided into azo, anthraquinone, triarylmethane, xanthene, () and so on according to their chemical structure.
===Choices
sulfonate
amine
carboxylate
nitroso
hydroxyl
ester
aldehyde
ether
phosphate
ketone | nitroso | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
If the channel's maximum data transmission rate in a noise-free situation is not less than the maximum data transmission rate under a signal-to-noise ratio of 30dB, then the number of signal states is at least ().
===Choices
48
16
12
32
20
10
256
... | 32 | general_qa | 93 |
The following is a multiple choice question (with answers).
===Question
Which Prime Minister of Upper Volta was Thomas Sankara?
===Choices
1
8
5
6
4
10
7
2
3
9 | 5 | general_qa | 50 |
The following is a multiple choice question (with answers).
===Question
Of the following various narratives, the one that belongs to the special law of wind flow in a parallel wind circuit is ( ).
===Choices
the total airflow matches the product of the airflow in each branch.
the resistance across branches is proporti... | the total airflow is equal to the sum of the airflow of each branch. | general_qa | 179 |
The following is a multiple choice question (with answers).
===Question
In three-dimensional composition, the point is a form element (), relatively small and concentrated, with a lively and varied visual effect.
===Choices
Perspective
Element
Space
Structure
Blueprint
Foundation
Plane
Arrangement
Dimension
Framework | Foundation | general_qa | 63 |
The following is a multiple choice question (with answers).
===Question
Which of the following is a correct statement about the huge impact of water projects on the healthy life of rivers?
===Choices
Water projects enhance the water flow's seasonal versatility.
Hydraulic initiatives amplify the natural river flow and ... | Hydraulic engineering weakens or even severs the transfer of materials and energy along the water flow. | general_qa | 151 |
The following is a multiple choice question (with answers).
===Question
Molded dimensions are usually
===Choices
Dimensions used in shipbuilding
Dimensions used by authorities to calculate gross and net tonnage
Dimensions used in measuring ship tonnage
The basis for safe movement and avoidance in narrow waterways and ... | Dimensions used in shipbuilding | general_qa | 63 |
The following is a multiple choice question (with answers).
===Question
In Roland Barthes' sentence 'mens fada in corpore salop' from his Carnets du voyage en Chine, which combination of stylistic figures incorrectly describes the figure used? Consider the following options:
I. Hyperbole
II. Synthesis
III. Metonymy
IV.... | IV | general_qa | 121 |
The following is a multiple choice question (with answers).
===Question
In which year was the movie 'The Sparrow' officially released?
===Choices
2010
2011
2018
2013
2017
2019
2014
2016
2012
2015 | 2016 | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
How many months did Joseph Melville Broughton serve as a United States Senator until he died?
===Choices
7
8
4
5
1
2
3
12
6
9 | 2 | general_qa | 57 |
The following is a multiple choice question (with answers).
===Question
Our genetic information or genome is stored in the parts of the DNA molecule called base pairs. Our genome contains about 3 billion $( 3 \times1 0^{9} )$ base pairs, and there are two copies in each cell. Along the DNA molecule, there is one base p... | $$
2 \mathrm{m}
$$
$$
2.8 \mathrm{\mu m}
$$ | general_qa | 370 |
The following is a multiple choice question (with answers).
===Question
What is the master clock frequency of the Toshiba BC-1411 in kilohertz?
===Choices
32
38
42
36
40
41
48
45
44
39 | 40 | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
The following descriptions of representatives and their works in Russian socialist realist literature are correct:
I. The long poem Anna Snegina (Анна Снегина) and the cycle Persian Motifs (Персидские мотивы) are considered the pinnacle of Tvardovs... | II and III and IV and V | general_qa | 367 |
The following is a multiple choice question (with answers).
===Question
Select the correct statement from the following.
===Choices
If the repeated limit and one of the iterated limits exist, the other iterated limit must also exist and be equal to the repeated limit.
If the repeated limit and one of the iterated limi... | If the repeated limit and the iterated limits both exist, they must be equal. | general_qa | 241 |
The following is a multiple choice question (with answers).
===Question
"FOB quality, FOB weight" refers to ( ).
===Choices
Inspection after customs clearance
Inspection in the exporting country, re-inspection in the importing country
Inspection by a third-party agency
Inspection at the warehouse
Inspection at the por... | Inspection at the port of shipment | general_qa | 119 |
The following is a multiple choice question (with answers).
===Question
Where was the slogan 'The national language of literature, literature of the national language' proposed?
===Choices
New Trends
The Literary Revolution of Construction
New Youth
Literary Reform Proposals | The Literary Revolution of Construction | general_qa | 53 |
The following is a multiple choice question (with answers).
===Question
When ferrous oxalate is titrated against $K_{2}Cr_{2}O_{7}$ , m eq . of $Fe^{+} , C_{2}O_{4}^{2-} $ and $Cr_{2}O_{7}^{2-}$ in the redox reaction are X, Y and Z respectively , then :-
===Choices
X+Y=Z
2X+Y=Z
2X+Y=2Z
X+2Y=Z
2X+2Y=Z
X+2Y=2Z
X+Y=2Z
... | X=Y | general_qa | 166 |
The following is a multiple choice question (with answers).
===Question
The universe is filled with blackbody radiation photons at $T = 3 \mathbf{K}$, which can be regarded as a remnant of the Big Bang. Approximately calculate the photon number density $\mathbf{n}$ when $T = 3 \mathbf{K}$.
===Choices
$$
n \! \sim\! 4 ... | $$
n \! \sim\! 1 0 0 0 / \operatorname{c m}^{3}
$$ | general_qa | 359 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements about Zoroastrianism is false? You need to include all the error options.
I. Zoroastrianism is the monotheistic faith established by the Persian prophet Zoroaster (also given as Zarathustra, Zartosht) between c. 18... | I,III and V | general_qa | 380 |
The following is a multiple choice question (with answers).
===Question
The connection part of the overboard row plate and the deck side plate is called the gunwale, and its connection method is: (1) upward inclined and downward inclined connection; (2) arc-shaped connection; (3) The side is connected at right angles; ... | (2)(3)(4) | general_qa | 131 |
The following is a multiple choice question (with answers).
===Question
What is the most important consideration when selecting an irrigation system?
===Choices
ease of installation process
cost of initial investment
suitability for local crops
availability and quality of water
maintenance and repair needs
need for ad... | availability and quality of water | general_qa | 71 |
The following is a multiple choice question (with answers).
===Question
To increase the voltage amplification factor, the intermediate stage of an integrated operational amplifier often uses ( ).
===Choices
Source-follower amplifier circuit
Common-base amplifier circuit
Push-pull amplifier circuit
Common-source amplif... | Common-emitter amplifier circuit | general_qa | 93 |
The following is a multiple choice question (with answers).
===Question
___________ is based on the idea that customer expectations of the service they will receive shape their perception of the actual service encounter.
===Choices
Service expectation.
Service recovery.
Service encounter.
Service delivery.
Service per... | Service quality. | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
Two different coils have self inductance $L_{1}=8\ mH, L_{2}=2\ mH$. The current in the second coil is also increased at the same constant rate. The current in the second coil is also increased at the same constant rate. At a certain instant of tim... | $$\dfrac{W_{2}}{W_{1}}=8$$ | general_qa | 336 |
The following is a multiple choice question (with answers).
===Question
What is the relationship between the quality of vision among the three types of animals: fish, birds, and mammals?
===Choices
Bird > Fish = Mammal
Birds > Fish > Mammals
Fish > Mammals > Birds
Fish > Birds > Mammals
Mammals > Fish > Birds
Fish = B... | Birds > Mammals > Fish | general_qa | 121 |
The following is a multiple choice question (with answers).
===Question
A primiparous woman with no history of surgery. Due to prolonged second stage of labor and decreased fetal heart rate, a posterior-lateral episiotomy and low forceps delivery were performed, delivering a live infant weighing 4000g. Two hours postpa... | Vaginal wall hematoma | general_qa | 192 |
The following is a multiple choice question (with answers).
===Question
On what day, month, and year was 3412 Kafka, an asteroid from the inner regions of the asteroid belt, discovered?
===Choices
10 January 1989
10 January 1986
10 January 1988
10 January 1981
10 January 1984
10 January 1982
10 January 1985
10 January... | 10 January 1983 | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
At the end of the film "Anna Karenina" the desperate Anna returns to the ( ), where she sees her childhood self smiling. With the thought that death can erase all sins, she jumps, and in the end, even though her face is covered in blood, she is abl... | train station | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
Which type of laser can output femtosecond pulses?
===Choices
Dye lasers
Helium-Neon lasers
Copper-vapor lasers
Argon-ion lasers
Erbium-doped fiber lasers
Neodymium-YAG lasers
CO2 lasers
Krypton lasers | Erbium-doped fiber lasers | general_qa | 73 |
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