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
According to the note value combination method, which of the following melody fragments constitutes a six-beat measure?
===Choices
L:1/16
M:4/4
K:C
A6 A A6 z2 z |] %1
L:1/8
M:2/4
K:C
A-A A-A |] %1
L:1/4
M:6/4
K:C
A2 A2 A2 |] %1
L:1/8
M:6/4
K:C
A3 ... | L:1/8
M:6/4
K:C
A3 A A2- A2 A3 B |] %1 | general_qa | 147 |
The following is a multiple choice question (with answers).
===Question
Two ships, Ship A and Ship B, are heading towards a dock that can only accommodate one ship at a time. The time of arrival for both ships within a 24-hour period is equally probable. If Ship A's docking time is one hour and Ship B's docking time is... | 0.879 | general_qa | 155 |
The following is a multiple choice question (with answers).
===Question
What is the color coding of bag in hospitals to dispose off human anatomical wastes such as body parts:
===Choices
Red
Brown
Green
Purple
Yellow
White
Black
Orange
Pink
Blue | Yellow | general_qa | 57 |
The following is a multiple choice question (with answers).
===Question
Conduction electrons in a metal can be regarded as a free electron gas. Given $N = 10^{22}/\mathbf{cm}^{3}$, what is the chemical potential of conduction electrons at $T=0 \mathrm{K}$ ?
===Choices
$$
1. 7 ( \mathbf{e V} )
$$
$$
4. 8 ( \mathbf{e V}... | $$
1. 7 ( \mathbf{e V} )
$$ | general_qa | 243 |
The following is a multiple choice question (with answers).
===Question
The coherence length of a helium-neon laser is 1 km, and the radius of the emitted light spot is $\mathbf{r = 0.3 \, \text{mm}}$. Find the linewidth of the light source as well as the coherence area and coherence volume at 1 km is___.
===Choices
$... | $$
1. 4 2 m^{2}
$$
$$
1. 4 2 \times1 0^{3} m^{3}
$$ | general_qa | 456 |
The following is a multiple choice question (with answers).
===Question
For the harmonic motion of a mass on a spring, the kinetic energy is $K=( 1 / 2 ) m v^{2}$ , and the potential energy is $V=( 1 / 2 ) k_{s} x^{2}$ where $k_{s}$ is the spring constant. Using the conservation of energy find the time-dependent spring... | $$
x ( t )=A \operatorname{s i n} ( \omega t+\phi)
$$ | general_qa | 351 |
The following is a multiple choice question (with answers).
===Question
The k gene in chickens is a recessive lethal gene linked to sex. When male chickens carrying the heterozygous k gene mate with normal female chickens, a total of 120 chicks are hatched. What is the male-to-female ratio among these 120 chicks? (Hint... | Male:Female = 80:40 | general_qa | 201 |
The following is a multiple choice question (with answers).
===Question
The non-bank public sells bonds to the central bank for 10,000 yuan and deposits the resulting banknotes into a commercial bank. The central bank () 10,000 yuan, and the commercial bank () 10,000 yuan.
===Choices
assets decrease; liabilities decre... | assets increase; liabilities increase | general_qa | 140 |
The following is a multiple choice question (with answers).
===Question
An electrochemical cell is composed of pure copper and pure cadmium electrodes immersed in solutions of their respetive divalent ions. For a $6. 5 \times1 0^{-2}$ M concentration of $C d^{2+}$ , the cadmium electrode is oxidized, yielding a cell po... | $$
0. 7 8 4 \; M
$$ | general_qa | 270 |
The following is a multiple choice question (with answers).
===Question
What is the highest peak's altitude on Gui Mountain Island in meters?
===Choices
391
399
400
393
396
397
395
394
392
398 | 398 | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
In cryptography, what is a series of well-defined steps used for encrypting and decrypting information called?
===Choices
cryptogram
algorithm
cryptosystem
cipher
cryptograph
key
code
codebook
protocol | cipher | general_qa | 60 |
The following is a multiple choice question (with answers).
===Question
In a two-factor ANOVA, factor A has 3 levels, and factor B has 2 levels. The F-test found that both main effects and the interaction effect are significant. Which of the following requires post hoc tests?
===Choices
Main effects of A and B
Only th... | Main effect of A and the interaction effect | general_qa | 159 |
The following is a multiple choice question (with answers).
===Question
Use active sonar to detect the target at 1000 m. The sound pressure reflection coefficient of the known target is 0.7, the sonar operating frequency is 20 kHz, the bandwidth is 100 Hz, the ambient noise spectrum level of the working sea area is 50 ... | Not less than 204dB | general_qa | 225 |
The following is a multiple choice question (with answers).
===Question
In an existing demand-paged system, the page table is stored in registers. If there is an available empty page or the replaced page has not been modified, it takes $8\mu s$ to handle a page fault interrupt; if the replaced page has been modified, t... | 6. 1 % | general_qa | 198 |
The following is a multiple choice question (with answers).
===Question
A cylindrical capacitor consists of a straight conductor with a radius of $a$ and a coaxial conductive cylinder surrounding it, with the cylinder's inner radius being $b$. The space between the wire and the cylinder is air, and both the wire and th... | $$
\frac{2 \pi\varepsilon_{0} L} {\operatorname{l n} ( b / a )}
$$ | general_qa | 370 |
The following is a multiple choice question (with answers).
===Question
When Yu was ruling the water at Longmen Mountain, he was given a jade slip by Fuxi, which was one foot and two inches long, what is its function?
===Choices
Measuring heaven and earth
Balancing day and night
Observing stars and planets
Calculating... | Measuring heaven and earth | general_qa | 112 |
The following is a multiple choice question (with answers).
===Question
Calculate the buoyant velocity of solid $\mathrm{Al_{2}O_{3}}$ particles ($d = 10^{-5} \, \mathrm{m}$, $\rho_{\mathrm{Al_{2}O_{3}}} = 3970 \, \mathrm{kg/m}^{3}$) and liquid $\mathrm{SiO_{2}}$ particles ($d = 10^{-5} \, \mathrm{m}$, $\rho_{\mathrm{S... | $$
2. 8 8 \times1 0^{-7} \mathrm{~ m / s},539. 21 \times1 0^{-10} \mathrm{~ m / s}
$$ | general_qa | 744 |
The following is a multiple choice question (with answers).
===Question
The head formation methods of the leaf balls in the cabbage heading variants include ____, ____ and ____.
===Choices
Curling type, Sheathing type, Binding type
Embracing type, Overlapping type, Twisting type
Expanding type, Bending type, Protrudin... | Embracing type, Overlapping type, Twisting type | general_qa | 154 |
The following is a multiple choice question (with answers).
===Question
The force acting on a rigid body is ().
===Choices
Directional constant
Movement scalar
Rotate the vector
Slide vector
Bidirectional vector
Torsion coefficient
Rotation parameter
Pivot quantity
Positioning vector
Shift factor | Slide vector | general_qa | 63 |
The following is a multiple choice question (with answers).
===Question
Consider the ABO blood group locus in humans, which has six (6) alleles reported for it, of which three are most prominent, I^A, I^B andi. The I^A and I^B alleles are both dominant toiandcodominantto each other. A woman of blood group O marries a m... | the daughter who has blood group A | general_qa | 219 |
The following is a multiple choice question (with answers).
===Question
On which day, month, and year did Sajood Sailani (a Kashmiri painter) die?
===Choices
17 November 2020.
17 November 2019.
17 November 2023.
17 November 2017.
17 November 2016.
17 November 2024.
17 November 2018.
17 November 2025.
17 November 2022.... | 17 November 2020. | general_qa | 129 |
The following is a multiple choice question (with answers).
===Question
A rigid ball with a radius of 0.5 meters is placed on the sea floor, and the transceiver is 200 meters away from the ball, and the equivalent joint directional beam width is 0.2 radians. It is known that the undersea backscattering intensity is -30... | 96dB,103dB,-7dB | general_qa | 294 |
The following is a multiple choice question (with answers).
===Question
At $40^oC$, a brass wire of $1 mm$ radius is hung from the ceiling. A small mass, $M$ is hung from the free end of the wire. When the wire is cooled down from $40^oC$ to $20^oC$ it regains its original length of $0.2 m$. The value of $M$ is close t... | $$9 \ kg$$ | general_qa | 217 |
The following is a multiple choice question (with answers).
===Question
A bank loaned a company $1,500,000 for the manufacture of a widget control system. As a condition of the loan, a majority shareholder in the company agreed in writing to personally guarantee the loan. Thereafter, the company defaulted on the loan a... | not prevail, because the shareholder was an incidental beneficiary of the bank's sale of the company's assets. | general_qa | 404 |
The following is a multiple choice question (with answers).
===Question
Three-phase bridge inverter circuit, thyristor phase shifting occurs between the upper and lower switches on the same bridge arm, what is this called?
===Choices
360-degree conduction type.
270-degree conduction type.
210-degree conduction type.
3... | 180-degree conduction type. | general_qa | 126 |
The following is a multiple choice question (with answers).
===Question
What are the main pollutants causing ozone layer destruction?
===Choices
Hydrogen sulfide and nitrogen trifluoride
Ethylene and propane
Radon and ozone
Acetone and toluene
Methane and ammonia
Vinyl chloride and isopropanol
Carbon monoxide and sulf... | Freon and NOx | general_qa | 101 |
The following is a multiple choice question (with answers).
===Question
____is one of the most stable vitamins, insensitive to heat, light, air, acids, and alkalis.
===Choices
Vitamin A
Biotin
Vitamin K
Riboflavin
Vitamin C
Thiamine
Ascorbic acid
Vitamin D
Niacin
Folic acid | Niacin | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
The order is trying to read the 100th logical block of a disk, using the () interface provided by the operating system
===Choices
Original language
File System Interface
System Call
Network sockets
Application Programming Interface
Hardware Abstra... | System Call | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
From which of the following primates do humans descend?
===Choices
gibbons
capuchin monkeys
chimpanzees
gorillas
lemurs
tarsiers
none of the above
baboons
orangutans
bonobos | none of the above | general_qa | 67 |
The following is a multiple choice question (with answers).
===Question
In cryptography, the order of the letters in a message is rearranged by ______.
===Choices
both transpositional ciphers and substitution ciphers
rotational lock codes
substitution ciphers
binary encoding systems
quadratic ciphers
compression algor... | transpositional ciphers | general_qa | 86 |
The following is a multiple choice question (with answers).
===Question
Water is drawn from a well in a $5\ kg$ drum of capacity $55\ L$ by two ropes connected to the top of the drum. The linear mass density of each rope is $0.5\ kgm^{-1}$. The work done in lifting water to the ground from the surface of water in the w... | $$1.4\times 10^{4}\ J$$ | general_qa | 239 |
The following is a multiple choice question (with answers).
===Question
Radiation heat losses from satisfactorily insulated high pressure boiler may be about ___ percent.
===Choices
26
9
7
5
6
4
18
11
8
1 | 7 | general_qa | 57 |
The following is a multiple choice question (with answers).
===Question
A circular piston sound source with a diameter of 30 cm radiates sound waves into an infinite water domain, operating at a frequency of 10 kHz with a sound power of 1000 W. Directly 1 km in front of this sound source, there is a rigid sphere with a... | 3.06·10 $^{-3}$W/m$^{2}$ | general_qa | 279 |
The following is a multiple choice question (with answers).
===Question
The electric field strength in a region is given as $\bar { E } =\quad \cfrac { x\bar { i } +y\bar { j } }{ { x }^{ 2 }+{ y }^{ 2 } } $. Find the net charge inside a sphere of radius $a$ with its centre at origin.
===Choices
$$2\pi { \varepsilon ... | $$4\pi{\varepsilon}_{0}Ra$$ | general_qa | 213 |
The following is a multiple choice question (with answers).
===Question
Using the fact that:
$$
e^x = \sum_{n=0}^\infty \left(\frac{ x^n }{ n! }\right)
$$
Evaluate:
$$
\sum_{n=0}^\infty \left(\frac{ 3 \cdot n }{ n! } \cdot 7^{1-3 \cdot n}\right)
$$
===Choices
3/49 * e^(1/1372)
3/49 * e^(1/117649)
3/49 * e^(1/125)
3/49... | 3/49 * e^(1/343) | general_qa | 234 |
The following is a multiple choice question (with answers).
===Question
Determine the tonality of the following score
L:1/4
M:2/4
K:C
z ^F, | G,/^F,/ E,/D,/ | ^C, A, | ^F, D, | z _B, | A,/^F,/ D,/F,/ | B,, ^C, | D, z |] %8
===Choices
D major tonality
B major tonality
d minor tonality
D mode, Yan Music | D major tonality | general_qa | 118 |
The following is a multiple choice question (with answers).
===Question
Which work by the Italian painter Jacopo de' Barbari is considered to be the earliest modern still life in Europe?
===Choices
Still Life: Partridge and Iron-encased Glove
Still Life: Partridge and Iron-protected Glove
Still Life: Partridge and Iro... | Still Life: Partridge and Iron-armored Glove | general_qa | 157 |
The following is a multiple choice question (with answers).
===Question
What is a fold whose inner and outer arc curvatures are the same, and has isoclinal lines of equal length?
===Choices
Similar Folds
Flimsy pleated wrinkles
Equal arc bends
Even twist contours
Homogeneous loop twists
Parallel folds
Consistent flex ... | isopach fold | general_qa | 90 |
The following is a multiple choice question (with answers).
===Question
The stratum's shear modulus is 6 GPa, with a difference of 12 MPa between the horizontal stress and the bottom hole pressure. How much does this cause the wellbore diameter of 10 cm to contract?
===Choices
0.2mm
0.1m
0.5mm
10mm
0.1cm
0.01mm
0.1mm
... | 0.1mm | general_qa | 115 |
The following is a multiple choice question (with answers).
===Question
The highest possible temperature during isobaric adiabatic evaporation is __.
===Choices
Critical condensation temperature
Pseudo-equivalent potential temperature
Isentropic process temperature
Evaporation point temperature
Wet-bulb temperature
Eq... | Equivalent temperature | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
How long, in minutes and seconds, is the song "Empty" by Bebe Rexha from the "Better Mistakes" album?
===Choices
2:22
2:30
2:38
2:32
2:28
2:34
2:24
2:26
2:18
2:48 | 2:28 | general_qa | 94 |
The following is a multiple choice question (with answers).
===Question
Under Chinese law, If an individual named A publishes a novel in the magazine "Fog City" without making a copyright declaration, and a reader, who enjoys it, recommends it to the magazine "Legend Digest" for reprinting, which of the following state... | "Legend Digest" magazine does not need A's consent but should pay A for the manuscript. | general_qa | 279 |
The following is a multiple choice question (with answers).
===Question
Using a single-effect falling film vacuum evaporator, concentrate a 0.10 NaOH aqueous solution to 0.20. The feed flow rate is 10 t/h, with boiling point feed, and the operating pressure of the condenser is 40 kPa (absolute pressure). Heat loss can ... | 44.3 $m^{2}$ | general_qa | 253 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the multiplicative order of 3 modulo the nth positive integer m that is coprime with 3 (i.e., gcd(m, 3) = 1). Given the input x_list (a series of values): [68, 69, 70, 71, 72, 73, 74, 75, 76, 77... | [100, 34, 6, 52, 53, 27, 20, 12, 112, 44] | general_qa | 532 |
The following is a multiple choice question (with answers).
===Question
Consider a thin layer of fluid with non-uniform heating that adheres closely to the surface of a horizontal solid plane. Within the plane of the fluid layer, the temperature is a known function of the horizontal coordinate $x$. Because the fluid la... | $$
\rho \zeta^2 = 3 \rho^{-3 / 4} \Bigl( \int \rho^{-1 / 4} \, \mathrm{d} \alpha + \text{constant} \Bigl)
$$ | general_qa | 593 |
The following is a multiple choice question (with answers).
===Question
What is one of the decisive factors of military income in China?
===Choices
The Number of Military Holidays and Celebrations
The Risks and Scarcity of the Military Profession
The Level of Armament and Equipment in the Military
The Diversity and In... | The Risks and Scarcity of the Military Profession | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
The main mechanism of increased vascular permeability in severe burns is?
===Choices
Leukocyte mediated endothelial cell injury
Active transport disruption in blood vessels
High permeability of newly formed capillaries
Enlarged gaps between endoth... | Direct damage to endothelial cells | general_qa | 115 |
The following is a multiple choice question (with answers).
===Question
A drop of liquid of diameter 2.8 mm breaks up into 125 identical drops. The change in energy is nearly (S. T. of liquid = $75 \times 10^{-3} $ N/m)
===Choices
78 \times 10^{-7} J
$2 \times 10^{-7}$ J
$46 \times 10^{-7}$ J
76 \times 10^{-7} J
68 \t... | $74 \times 10^{-7}$ J | general_qa | 189 |
The following is a multiple choice question (with answers).
===Question
In order to quantitatively represent the westerly wind strength,Rossby proposed that the average geostrophic westerly wind between () be defined as the westerly wind index, and the average geopotential height difference between the two latitudes is... | 35°~55° | general_qa | 161 |
The following is a multiple choice question (with answers).
===Question
The patient is a 65 year old male who has been experiencing progressive swallowing difficulties for 4 months. His body weight has decreased by 6kg, and he is currently able to drink water and consume a liquid diet. The X-ray signs that will not app... | Esophageal changes resembling bird's beak | general_qa | 150 |
The following is a multiple choice question (with answers).
===Question
A cylindrical container with a diameter of 1m holds water at a temperature of 27°C and a depth of $0.5 \mathrm{m}$. Water is added at a flow rate of $1 \mathrm{kg/s}$ until the water depth reaches 2m. It is assumed that the added water is thoroughl... | $$
t_{2}=3 9 \mathrm{~} \mathrm{~^{\circ} C}
$$ | general_qa | 510 |
The following is a multiple choice question (with answers).
===Question
Assume that an antenna radiates conically only within the range of $\theta = 0^\circ$ to $45^\circ$ with the z-axis, and radiates uniformly. Find the maximum directivity coefficient of the antenna.
===Choices
$$
5. 9 3 ( \mathrm{d B} )
$$
$$
6. 5 ... | $$
8. 3 4 ( \mathrm{d B} )
$$ | general_qa | 245 |
The following is a multiple choice question (with answers).
===Question
Find Antilog_10 0.8762 - 2.
===Choices
0.0752
7.52
0.8762
1.752
10^0.8762 / 100
Both 0.0752 and 10^0.8762 / 100 are correct
0.8752
8.762
0.00752
752 | Both 0.0752 and 10^0.8762 / 100 are correct | general_qa | 125 |
The following is a multiple choice question (with answers).
===Question
When 20 mol% $YF_3$ is added to $CaF_2$ to form a solid solution, the experimentally measured density of the solid solution is 3.64 g/cm³, and the lattice parameter at this time is $a=0.55$ nm. (The atomic masses are as follows: Y: 88.9, Ca: 40.0, ... | Formation of an Interstitial Solid Solution. | general_qa | 216 |
The following is a multiple choice question (with answers).
===Question
The personality characteristics of intellectually retarded children are ().
===Choices
Lack of self-respect, high expectations, no lack of need for communication
Low expectations, intense self-respect, high need for communication
Low self-esteem, ... | Low expectations, lack of self-respect, lack of need for communication | general_qa | 171 |
The following is a multiple choice question (with answers).
===Question
If the distance between geophones is 120 meters and the time difference for the effective wave is 80 milliseconds, what is the apparent velocity of the effective wave? (Round to the nearest integer.)
===Choices
2500
2000
1600
1550
1500
1800
1650
1... | 1500 | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
The emergence of mesoderm is of great significance in the evolution of animals. Which of the following structures is of mesoderm origin?
===Choices
Wings of insects
Exoskeleton of marine sponges
Stingers of jellyfish
Scale of reptiles
Nerve cord o... | Spicules of sea cucumbers | general_qa | 111 |
The following is a multiple choice question (with answers).
===Question
The cured wall of a dam is described by the equation $x^2= 2y$
The coordinates of point $A$ are $(4m,8m)$ The width of the dam is $2m$ and the fluid is water of density $1\times 10^3 \, kg/m^3$. Atmospheric pressure is $1.0 \times 10^5$ pa.
The hor... | $$4.3 \times 10^5 \, N$$ | general_qa | 267 |
The following is a multiple choice question (with answers).
===Question
Which is not the correct relation between different current gain $( lpha , \beta , \gamma )$ of transistor amplifier :-
===Choices
$$\alpha = \frac { \beta } { \beta + 1 }$$
\beta = lpha + 1
\beta = \frac{\alpha + 1}{\alpha - 1}
\beta = \frac{\... | $$\beta = \frac {\alpha } { 1 - \alpha }$$ | general_qa | 196 |
The following is a multiple choice question (with answers).
===Question
If the gradient of the scalar field u on a surface is zero, then ( ).
===Choices
the curl of u is not zero
the gradient of u is zero at all points on the surface
The surface is an isosurface.
the divergence of u is zero
u is always zero
the surfac... | The surface is an isosurface. | general_qa | 128 |
The following is a multiple choice question (with answers).
===Question
Four point charges q, q, q and -3q are placed at the vertices of a regular tetrahedron of side L. The work done by electric force in taking all the charges to the centre of the tetrahedron is (where $k=\frac {1}{4\pi \epsilon_0})$ :
===Choices
$$\... | $$\dfrac {-6kq^2}{L}$$ | general_qa | 238 |
The following is a multiple choice question (with answers).
===Question
What was the name of the younger brother of Mukul Chandra Dey who was a member of the Progressive Artists' Group and a prominent painter of the Bengal School of Art?
===Choices
Abani Chandra Dey
Manish Chandra Dey
Abanindranath Dey
Mani Dey
Manind... | Manishi Dey | general_qa | 120 |
The following is a multiple choice question (with answers).
===Question
The sequence of the next function values for pattern string P='abaabcac' is( ).
===Choices
12345689
11122334
01122312
02045612
01234567
11223334
11111234
02345678
23456789
12233456 | 01122312 | general_qa | 125 |
The following is a multiple choice question (with answers).
===Question
A piece of wire is bent in the shape of a parabola $y = kx^2$ (y-axis vertical) with a bead of mass m on it. The bead can slide on the wire without friction. It stays at the lowest point of the parabola when the wire is at rest. The wire is now acc... | $$\frac{a}{2gk}$$ | general_qa | 254 |
The following is a multiple choice question (with answers).
===Question
Applying for Seasonal Employment occurs when a person requests to be considered for a job that is dependent on a particular season or time of year. Which situation below is the best example of Applying for Seasonal Employment?
===Choices
Jennifer ... | Lucinda makes an appointment with the beach resort restaurant manager to interview for the summer waitressing position that was advertised in the newspaper. | general_qa | 258 |
The following is a multiple choice question (with answers).
===Question
The copper half of an inclined plane of inclination 0 is perfectly smooth while the lower half is rough , A body starting from the rest at top comes back to rest at the bottom if the coefficient of friction for the lower half is given
===Cho... | $$ \mu = \sin \theta $$ | general_qa | 188 |
The following is a multiple choice question (with answers).
===Question
The number of marine____ species exceeds the combined total of marine green algae and brown algae species.
===Choices
black algae
pink algae
grey algae
white algae
purple algae
silver algae
red algae
yellow algae
blue algae
orange algae | red algae | general_qa | 65 |
The following is a multiple choice question (with answers).
===Question
What is the order of earthworms' absorption capacity for heavy metals in soil?
===Choices
Zn > Hg > Cu > Pb
Hg > Cu > Zn > Pb
Zn > Cu > Pb > Hg
Pb > Cu > Zn > Hg
Cu > Pb > Hg > Zn
Cu > Zn > Hg > Pb
Pb > Zn > Cu > Hg
Hg > Zn > Pb > Cu
Cu > Hg > Pb ... | Zn > Cu > Pb > Hg | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
What is the value of the lead $\mathsf{p}$ speed $( \omega)$?
===Choices
$\omega={\frac{\mathbf{p} \mathbf{d}} {\mathbf{t} \mathbf{d}}}$
$\omega={\frac{\mathbf{p} \mathbf{t}} {\mathbf{d} \mathbf{t}}}$
$\omega={\frac{\mathbf{d} \mathbf{t}} {\mathbf... | $\omega={\frac{\mathbf{d} \mathbf{p}} {\mathbf{d} \mathbf{t}}}$ | general_qa | 276 |
The following is a multiple choice question (with answers).
===Question
The equation for cream of tartar and baking powder, in action with hot water is: NaHCO_3 + KHC_4H_6O_6\ding{217} NaKC_4H_4O_6 + H_2O + CO_2 (g) From the use of 4.2 g of NaHCO_3 (baking powder), what volume of CO_2 should be liberated through the do... | 2.24 l | general_qa | 181 |
The following is a multiple choice question (with answers).
===Question
A spring has a natural length of $1$m, and a force of $24$ Newtons stretches the spring 0.8 m in length. The work required to stretch a spring from its natural length to $2m$ is ().
===Choices
$$ 6 0 \mathrm{J} $$
$$ 36 0 \mathrm{J} $$
$$ 24 0 \ma... | $$ 6 0 \mathrm{J} $$ | general_qa | 191 |
The following is a multiple choice question (with answers).
===Question
The half-life of short-lived radioactive waste should be less than ()
===Choices
24 hours
20 days
45 days
30 days
15 days
30 years
12 hours
2 days
10 days
5 days | 15 days | general_qa | 67 |
The following is a multiple choice question (with answers).
===Question
Emotional disorders typically last for how long?
===Choices
≤6 months
5-6 days
1-2 days
within 24 hours
≥7 days
2-3 weeks
about 10 days
3-4 days
8-12 months
≥5 years | ≥7 days | general_qa | 75 |
The following is a multiple choice question (with answers).
===Question
Its function is to enrich some useful components in the raw material in the slag for recycling. For example, ilmenite is first reduced and melted in an electric furnace to obtain high titanium slag, and then further extracted titanium. What is it?
... | Enriched residue | general_qa | 108 |
The following is a multiple choice question (with answers).
===Question
$2 mole $ ideal monoatomic gas undergoes process, where pressure is directly proportion volume of the gas. If its temperature rises from $27^0C$ to $227^0C$, then heat absorbed by gas is (R=universal gas constant)
===Choices
650R
720R
750R
$$600R$... | $$200R$$ | general_qa | 132 |
The following is a multiple choice question (with answers).
===Question
A certain computer uses byte addressing, with a fixed instruction word length and only two types of instruction formats. There are 29 three-address instructions and 107 two-address instructions, with each address field being 6 bits. The instruction... | 24 bits | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
The termination of a crime can only occur in ().
===Choices
in the preparatory form
in the preparatory form and during the implementation process before the harmful result occurs
during the planning phase and before any action is taken
if the vict... | in the preparatory form and during the implementation process before the harmful result occurs | general_qa | 118 |
The following is a multiple choice question (with answers).
===Question
The dance "she sheng si hu" dances ()
===Choices
赞法飞天
散花飞天
念法飞天
演法飞天
持法飞天
颂法飞天
礼法飞天
闻法飞天
涅槃飞天
传法飞天 | 赞法飞天 | general_qa | 77 |
The following is a multiple choice question (with answers).
===Question
What is the key to choosing a reasonable ventilation system in underground mines?
===Choices
Volume of extracted minerals
Ore body size
Type of mining equipment used
Average daily drilling speed
Temperature of underground water
Number of miners
Am... | Harmful gas content in the ore body | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
Given $ \Delta_i H^\Theta (HCN) = 45.2 kJ mol^{-1} $ and $ \Delta_i H^\Theta ( CH_3COOH ) = 2.1 kJ mol^{-1} $ . which one of the following facts is true?
===Choices
$$pK_a(HCN) = \frac{2.17}{45.2} pK_a(CH_3COOH)$$
$$pK_a(HCN) = (2.07/45.17) pK_a(C... | $$ pK_a(HCN) = pK_a(CH_3COOH) $$ | general_qa | 357 |
The following is a multiple choice question (with answers).
===Question
Which of the following garment finishers is designed for processing multiple garments simultaneously?
===Choices
Steam Chamber
Buck Press
Steam Conveyor
Die Press
Form Conveyor
Tunnel Press
Tunnel
Conveyor
Form press
Roller Press | Tunnel | general_qa | 64 |
The following is a multiple choice question (with answers).
===Question
The value of an 8-bit register is known to be 11001010. What is the result after a small circular left shift by one bit?
===Choices
10011011
01110010
11001001
01011001
00110101
11011000
01101001
10101001
10010101
11002010 | 10010101 | general_qa | 142 |
The following is a multiple choice question (with answers).
===Question
Which of the following are the conditions for realizing the expanded reproduction of total social capital? (Choose the option that includes all the correct statements)
I. I (c+v+M) = I (c+△c) + II (c+△c)
II. I (c+v+M) = I c + II c
III. II (c+v+M) =... | I, III, and IV | general_qa | 206 |
The following is a multiple choice question (with answers).
===Question
At present, mobile games mainly use () as a development tool.
===Choices
Flash
Python
Java
VB
JavaScript
C#
C++
Kotlin
Swift
Unity (C#) | Java | general_qa | 54 |
The following is a multiple choice question (with answers).
===Question
It's easy to catch 100 kinds of animals, but it's hard to catch 100 individuals of one animal in which ecosystem?
===Choices
Rainforest
Mountain
Wetlands
Desert
Urban
Marine
Savanna
Grassland
Freshwater
Tundra | Rainforest | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
What is the result of using the Vandermond determinant?
$\left| \begin{matrix} {{1}} & {{1}} & {{\cdots}} & {{1}} \\ {{2}} & {{2^{2}}} & {{\cdots}} & {{2^{n}}} \\ {{3}} & {{3^{2}}} & {{\cdots}} & {{3^{n}}} \\ {{\cdots}} & {{\cdots}} & {{\cdots}} & ... | $$
\prod_{i=1}^{n} i!
$$ | general_qa | 330 |
The following is a multiple choice question (with answers).
===Question
If the grassland is resampled after one year, which of the following would best indicate that the grassland had suffered negative effects from a new development nearby?
===Choices
biodiversity has decreased
uncommon species is less numerous
phylog... | a decrease in individuals of high tolerance species | general_qa | 119 |
The following is a multiple choice question (with answers).
===Question
In oil and gas storage and transportation engineering, what method is primarily used to calculate well production?
===Choices
Indirect Measurement Method
Dynamic Production Modeling
Estimation Method
Fluid Flow Network Analysis
Pressure Transient ... | Well Testing Method | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
"When one man rebels and the seven temples are destroyed, he dies at the hands of others and becomes a laughingstock to the world, why is this so? It is because benevolence and righteousness were not practiced, and the situation of attack and defen... | the fall of the Qin Dynasty after two generations | general_qa | 177 |
The following is a multiple choice question (with answers).
===Question
In conducting a shell model experiment in deep water, the size of the model is 1/1.5 of the actual object. If the speed of the shell in the air is 500 km/h, what should the speed of the model in the water be when measuring its viscous resistance (a... | 13.99 m/s | general_qa | 170 |
The following is a multiple choice question (with answers).
===Question
An astronaut piloted a spacecraft to a certain planet, bringing the spacecraft close for an orbit around the planet. The measured flight time for this orbit was $4.5 \times 10^{3} \, \text{s}$. What is the average density of this planet?
===Choice... | $$
6. 9 8 \times1 0^{3} k g / m^{3}
$$ | general_qa | 324 |
The following is a multiple choice question (with answers).
===Question
A bug is on a vertex of a regular icosahedron (a polyhedron with 20 triangular faces.) Every second, it can either move to one of the adjacent vertices, or teleport to the opposite vertex (i.e. the unique vertex of the icosahedron such that the dis... | 265 | general_qa | 187 |
The following is a multiple choice question (with answers).
===Question
Stone cells are bright yellow, approximately square, round, rectangular, or nearly polygonal in shape, with thick walls. Some have evident stratification, pit canals, and wall pores. What could this medicinal material be?
===Choices
Epimedium
Huan... | Weilian | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
What were the date, month, and year when Saddam's government laid out its combined objections to the Arab League, including that policy moves were costing Iraq $1 billion a year, that Kuwait was still using the Rumaila oil field, and that loans mad... | 15 July 1990 | general_qa | 175 |
The following is a multiple choice question (with answers).
===Question
Adding zinc to copper causes some copper atoms to be replaced by zinc atoms. Using the free electron model, determine the ratio of zinc atoms to copper atoms at which the Fermi sphere contacts the first Brillouin zone boundary. (Copper has a face-c... | $$
{\frac{9} {1 6}}
$$ | general_qa | 247 |
The following is a multiple choice question (with answers).
===Question
Fold the line segment $[0,a]$ arbitrarily into three folds, so what is the probability that these three folds can form a triangle?
===Choices
$$
{\frac{1} {12}}
$$
$$
{\frac{1} {2}}
$$
$$
{\frac{1} {4}}
$$
$$
{\frac{1} {3}}
$$
$$
{\frac{1} {8}}
$$... | $$
{\frac{1} {4}}
$$ | general_qa | 166 |
The following is a multiple choice question (with answers).
===Question
The wavelength of the spectral line for the transition of sodium atoms from $3^2P_{1/2}→ 3^2S_{1/2}$ is 589.6 nm. In a magnetic field of $B = 2.5T$, Zeeman splitting occurs. Observing from a direction perpendicular to the magnetic field, how many s... | $$
4 lines. 589.546 nm, 589.573 nm, 589.627 nm, 589.654 nm.
$$ | general_qa | 517 |
The following is a multiple choice question (with answers).
===Question
What opposition does ordinary people's methodology transcend?
===Choices
Historical and contemporary
Logical and illogical
Universal and particular
Scientific and artistic
Rational and emotional
Subjective and objective
Theoretical and practical
A... | Subjective and objective | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
For an infinity long metal cylinder, the radius is 3 mm, K=6.28 and charge density =$4\mu C/{ m }^{ 2 }$. What is the electric intensity (E) at a distance of 1.5 m from the axis?
$$[\frac { 1 }{ 4\pi { arepsilon }_{ 0 } } =9\times { 10 }^{ 9 }]$$... | $$144 N/C$$ | general_qa | 178 |
The following is a multiple choice question (with answers).
===Question
To form a diminished sixth interval below L:1/4
M:4/4
K:C
^F4 |] %1, the root of this interval is
===Choices
L:1/4
M:4/4
K:C
^A,4 |] %1
L:1/4
M:4/4
K:C
^^A,4 |] %1
L:1/4
M:4/4
K:C
C4 |] %1
L:1/4
M:4/4
K:C
B,4 |] %1 | L:1/4
M:4/4
K:C
B,4 |] %1 | general_qa | 146 |
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