problem stringlengths 14 4.09k | solution stringlengths 1 802k | task_type stringclasses 3
values | problem_tokens int64 5 895 |
|---|---|---|---|
The following is a multiple choice question (with answers).
===Question
In the EICAS system used on the Boeing 767, if the left EICAS computer fails, which computer will automatically take over to drive the display?
===Choices
The central EICAS computer will take over and drive the display with the left EICAS computer... | The right EICAS computer | general_qa | 206 |
The following is a multiple choice question (with answers).
===Question
The mountain formed on the Earth's crust due to tension is called().
===Choices
Coastal range
Anticline formation
Plateau uplift
Dome mountain
Escarpment rise
Block mountain
Fault ridge
Volcanic mountain
Fold mountain
Rift valley hill | Block mountain | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
Regarding the mechanism of ATP synthesis, which of the following statements is correct?
===Choices
The F1 unit has ADP synthase activity
F1 provides the transmembrane proton channel
The backflow of protons against the concentration gradient drives... | The F1 unit has ATP synthase activity | general_qa | 148 |
The following is a multiple choice question (with answers).
===Question
A control valve with an air-to-close configuration means ( )
===Choices
Signal reduces, push rod retracts down
Signal increases, push rod moves up
No signal, valve remains fixed
No signal, valve changes position
No signal, valve open
Signal boosts... | No signal, valve closed | general_qa | 102 |
The following is a multiple choice question (with answers).
===Question
At 298K and $p^{\Theta}$, 0.782 mol of $N_{2}(g)$, 0.209 mol of $O_{2}(g)$, and 0.009 mol of $Ar(g)$ are mixed under isothermal and isobaric conditions. What are the values of $\Delta_{\operatorname*{mix}}V$, $\Delta_{\operatorname*{mix}}H$, $\Delt... | $$
0, \ 0, \ 4. 6 7 \mathrm{J} \cdot\mathrm{K}^{-1}, \ -1. 3 9 2 \mathrm{k J}
$$ | general_qa | 625 |
The following is a multiple choice question (with answers).
===Question
What is the Latin scientific name for the needle crystal sponge genus?
===Choices
Raphidonema var. var.
Raphidinum
Raphidinoma
Raphidinema
Raphidinema var.
Raphidonema
Raphidinoma var.
Raphidonemum
Raphidonema var.
Raphidonemum var. | Raphidonema | general_qa | 92 |
The following is a multiple choice question (with answers).
===Question
The correct statement about the magnetic properties of $[Fe(CN)_6]^{3-}$ and $[FeF_6]^{3-}$ is: $(Z=26)$.
===Choices
Both are paramagnetic
Both are ferromagnetic
$[Fe(CN)_6]^{3-}$ is diamagnetic, $[FeF_6]^{3-}$ is paramagnetic
$[Fe(CN)_6]^{3-}$ is... | Both are paramagnetic | general_qa | 218 |
The following is a multiple choice question (with answers).
===Question
Let X be the generalized inverse of matrix A, which of the following is correct:
===Choices
XAX=AA
XAX=A
XAX=X
XAX=XX
AXA=A
XAX=AX
XAX=XA
XAX=XAX
(AX)'=AX
(XA)'=XA | AXA=A | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
When a monopoly manufacturer implements three-level price discrimination, ().
===Choices
The manufacturer can only charge a single price across all markets regardless of demand elasticity
The monopoly manufacturer can completely deprive all consum... | The manufacturer must raise prices in markets with lower demand price elasticity and lower prices in markets with higher demand price elasticity | general_qa | 173 |
The following is a multiple choice question (with answers).
===Question
In which C++ standard was the keyword 'constinit' first introduced?
===Choices
C++21
C++11
C++19
C++15
C++18
C++16
C++23
C++17
C++14
C++20 | C++20 | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
The main information provided by the government to both parties in collective bargaining includes ( ).I. Changes in wages, working hours, and insurance benefitsII. Changes in price levels and labor productivityIII. Implementation of labor legislati... | I,II,IV | general_qa | 142 |
The following is a multiple choice question (with answers).
===Question
Given a face-centered cubic crystal with a stacking fault energy $\gamma = 0.01 \, \mathrm{J/m^{2}}$, shear modulus $G = 7 \times 10^{10} \, \mathrm{Pa}$, and lattice constant $a = 0.3 \, \mathrm{nm}$, determine the equilibrium distance between the... | $$
8. 3 6 \ \mu\mathrm{m}
$$ | general_qa | 319 |
The following is a multiple choice question (with answers).
===Question
The economist who proposed that "in production, labor is not an additional factor of capital, and there is a direct substitution relationship between labor and capital" is ().
===Choices
Alfred Marshall
David Ricardo
Adam Smith
Clark
John Maynard ... | Clark | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
Under room temperature (300 K), if the reverse saturation current of a diode is 1 nA, what voltage should be applied for its forward current to be 0.5 mA? Assume the exponential model of the diode is $i_{\mathrm{D}} = I_{\mathrm{S}} ( \, \mathrm{e}... | $$
\approx0. 3 4 \mathrm{~ V}
$$ | general_qa | 303 |
The following is a multiple choice question (with answers).
===Question
How often should cultures of common slant-grown microorganism strains be subcultured?
===Choices
4 to 5 months
1 to 2 weeks
2 to 3 weeks
10 to 11 months
7 to 8 months
1 to 2 months
3 to 4 months
6 to 7 months
3 to 5 months
5 to 6 months | 1 to 2 months | general_qa | 97 |
The following is a multiple choice question (with answers).
===Question
A man applying a force $F$ upon a stretched spring is stationary in a compartment moving with constant speed $v$. If the compartment covers a distance $L$ in some time $t$, then
===Choices
The work done by friction acting on man with respect to gr... | The work done by friction acting on man with respect to ground is, (w) $= FL$ | general_qa | 293 |
The following is a multiple choice question (with answers).
===Question
A patient presents with ascending muscle weakness for 2 days. On examination, the limb is flaccid. What investigation should be done first?
===Choices
Serum calcium
Serum phosphate
Serum creatinine
Serum creatine kinase
Serum magnesium
Serum sodiu... | Serum potassium | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
An alloy has $Fe$, $Co$ and $Mo$ equal to 71%, 12% and 17% respectively. How many cobalt atoms are there in a cylinder of radius 2.50 cm and a length of 10.0 cm?[The density of alloy is $8.20\ g/mL$. The atomic weight of cobalt = $58.9$.]
===Choic... | $$19.8\ \times \ { 10 }^{ 23 }$$ | general_qa | 286 |
The following is a multiple choice question (with answers).
===Question
Whether it is actinomycetes or fungi, there is no distinction between basal hyphae, aerial hyphae and spore hyphae in ().
===Choices
Vertical Coordination
Deep Cultivation
Subterranean Growth
Thermal Expansion
Organic Decomposition
Controlled Fert... | Deep Cultivation | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
When heating a steak on a special plate in a microwave, only the steak is cooked while the plate is not damaged. The reason for this is ( ).
===Choices
The plate has a high relative permittivity
The plate has a high electrical conductivity
The ski... | The skin depth of electromagnetic waves in the plate is large | general_qa | 159 |
The following is a multiple choice question (with answers).
===Question
Elimination after 4 half lives in first order Kinetics is -
===Choices
95%
94%
90%
4.75%
93.50%
92%
93%
84%
91.50%
80.50% | 93% | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
Which of the following commands reads a file from scratch?
===Choices
uniq
tail
wc
send
head
diff
grep
awk
sort
cut | head | general_qa | 47 |
The following is a multiple choice question (with answers).
===Question
Compute the volume of the solid formed by rotating about the x-axis the area bounded by the axes and the parabola $x^{\frac{ 1 }{ 2 }}+y^{\frac{ 1 }{ 2 }}=2^{\frac{ 1 }{ 2 }}$.
===Choices
2π/15
10π/15
8π/15
6π/15
14π/15
12π/15
20π/15
16π/15
4π/15
... | 8π/15 | general_qa | 147 |
The following is a multiple choice question (with answers).
===Question
The maximum mapping range of the aerial survey stereoscopic model should not exceed the outer connection line of the model mapping orientation points by () cm.
===Choices
0.6
0.8
1
0.5
1.2
1.3
0.2
0.9
1.5
0.1 | 1 | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
Let [A = left( {begin{array}{*{20}{c}}1&1&1&11&1&1&11&1&1&11&1&1&1end{array}} right),B = left( {begin{array}{*{20}{c}}4&0&0&00&0&0&00&0&0&00&0&0&0end{ar... | Congruent and similar | general_qa | 220 |
The following is a multiple choice question (with answers).
===Question
Calculating the bonding energy ratio of Ne in body-centered cubic and face-centered cubic structures using the Lennard-Jones Potential, which is ().
===Choices
1.203
0.676
1.065
1.362
0.842
0.983
0.957
1.431
0.748
1.119 | 0.957 | general_qa | 106 |
The following is a multiple choice question (with answers).
===Question
Find a cosine series which represents f(x) in 0 \leq x \leq \pi if f(x) is defined as f(x) = 00 \leq x < (\pi / 2) f(x) = 1(\pi / 2) < x \leq \pi.
===Choices
f(x)= (1 / 2) - (2 / \pi) \sum_n=1^∞ (- 1)^n [{cos(2n)} / (2n + 1)]
f(x)= (1 / 2) - (2 / ... | f(x)= (1 / 2) - (2 / \pi) \infty \sum_n=0 (- 1)^n [{cos(2n + 1)} / (2n + 1)] | general_qa | 502 |
The following is a multiple choice question (with answers).
===Question
After completing a project, renovation company A sold the remaining floorboards and other items to property management company B. However, the approved business scope on A's business license does not include the sale of floorboards. How is the lega... | It is a valid civil legal act | general_qa | 169 |
The following is a multiple choice question (with answers).
===Question
If the register content is 11111111, if it equals +127, then it is ().
===Choices
Address resolution
Cache replacement
Memory mapping
Logic synthesis
Instruction cycle
System integration
Power sequencing
Data encryption
Code migration
Hardware abs... | Code migration | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
In a diploid plant with $2n=14$, all the chromosomes form a ring structure during meiotic prophase. The reason for this is?
===Choices
Multiple single translocations
Gene mutations
Multiple deletions
Multiple single deletions
Multiple inversions
M... | Multiple deletions | general_qa | 91 |
The following is a multiple choice question (with answers).
===Question
A thin plate is placed between two flat surfaces $h$ cm apart such that the viscosity of liquids on the top and bottom of the plate are $\mu_{1}$ and $\mu_{2}$ respectively. Determine the position of the thin plate such that the viscous resistance ... | $$
{\frac{y} {( h-y )}}={\sqrt{\mu_{1} / \mu_{2}}}
$$ | general_qa | 371 |
The following is a multiple choice question (with answers).
===Question
What are the sources of infection for hand, foot, and mouth disease?
===Choices
Public pools, playgrounds, schools
Hospitals, daycare centers, nursing homes
Soil, water, contaminated food
Pregnant mothers, adolescent teens, urban residents
Patient... | Patients, mildly disseminated patients, invisible infections | general_qa | 129 |
The following is a multiple choice question (with answers).
===Question
What is the change in flat-band voltage when positive charges are uniformly distributed in the oxide layer?
===Choices
$$
3. 0 ( \mathrm{V} )
$$
$$
4. 4 ( \mathrm{V} )
$$
$$
2. 7 ( \mathrm{V} )
$$
$$
- 4. 6 ( \mathrm{V} )
$$
$$
- 3. 3 ( \mathrm{V}... | $$
- 4. 6 ( \mathrm{V} )
$$ | general_qa | 196 |
The following is a multiple choice question (with answers).
===Question
What is the volume of Z (compressibility factor) for 0.5 mole of real gas at 1 atm pressure ?
Assuming the size of gas molecule is negligible
$$\left[ {{\text{given}}\;{\text{a}}\; = \;{\text{100}}\;{\text{atm}}\;{{\text{L}}^{\text{2}}}{\text{,}}... | 25 | general_qa | 229 |
The following is a multiple choice question (with answers).
===Question
During the Anti-Japanese War, the core institution of the National Government's monopoly on the national financial industry was __.
===Choices
Postal Savings and Remittance Bureau
Ministry of Economic Affairs
National Investment Corporation
Centra... | Joint Office of the Four Banks | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
The Hoffman ratio refers to the ratio of the net industrial output value of consumer goods (consumer goods) to the net industrial output value of means of production (capital goods). Hoffmann's theorem refers to the trend of decreasing Hoffmann's p... | four | general_qa | 106 |
The following is a multiple choice question (with answers).
===Question
The vapor pressure of a volatile liquid can be determined by slowly bubbling a known volume of gas through it at a known temperature and pressure. In an experiment, 5.00 L of $\mathrm{N_{2}}$ gas is passed through 7.2146 g of liquid benzene, $\math... | $$
9 8. 7 \mathrm{~ t o r r}
$$ | general_qa | 354 |
The following is a multiple choice question (with answers).
===Question
A hollow sphere of radius $R$ is made of metal whose specific gravity is $\rho$. The sphere will float in water if thickness of wall of the sphere is (thickness of the wall $<<R$)
===Choices
$$<\dfrac{2R}{3p}$$
$$=\dfrac{R}{5p}$$
$$=\dfrac{R}{4p}$... | $$<\dfrac{R}{4p}$$ | general_qa | 186 |
The following is a multiple choice question (with answers).
===Question
What is the smallest available IP address in the subnet 69.135.87.30/28?
===Choices
69.135.87.18
69.135.87.8
69.135.1.1
69.135.87.20
69.135.87.17
69.135.87.28
69.135.87.19
69.135.87.1
69.135.87.32
69.135.87.15 | 69.135.87.17 | general_qa | 169 |
The following is a multiple choice question (with answers).
===Question
The important basis for establishing the specific part of our country's criminal law system is ().
===Choices
The final object
The direct object of the crime
The object of the crime
The general object of the crime
Dissimilar intentions of crime
Di... | Similar objects of crime | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
The fraction of nonreflected radiation that is transmitted through a 5-mm thickness of a transparent material is 0.95. If he thickness is increased to 12mm, what fraction of light will be transmitted?
===Choices
$$
0. 5 8 9
$$
$$
0. 8 8 4
$$
$$
0.... | $$
0. 8 8 4
$$ | general_qa | 192 |
The following is a multiple choice question (with answers).
===Question
A wire of diameter 1 mm carrying a heavy current has a temperature of 1200°K when equilibrium has been achieved. We assume that the heat lost from the wire is purely by radiation. The temperature of the sur-roundings is 300°K, the resistivity of th... | 35.5A | general_qa | 190 |
The following is a multiple choice question (with answers).
===Question
Let $f(x,y)$ be a multivariable function defined on base $10$ positive integers that returns the sum of the digits of $x_y$ . For example $f(5,3)=3$ and $f(11,12)=11$ . Let $N$ be the number of ordered pairs of base $10$ positive integers $(a,b)$ t... | 73 | general_qa | 203 |
The following is a multiple choice question (with answers).
===Question
A painter and a homeowner orally agreed that the painter would paint the exterior of the homeowner's house for $500, plus the cost of supplies. A few days before work was to begin, the parties signed a written contract that indicated that the total... | No, because the evidence would be offered to contradict the parties' final agreement as to price, which final agreement was reflected in the written contract. | general_qa | 414 |
The following is a multiple choice question (with answers).
===Question
Who were the first to walk upright on two legs?
===Choices
Homo erectus
Cro-Magnons
Homo habilis
Paranthropus
Homo floresiensis
Australopithecus
Capable Person
Ardipithecus
Homo sapiens
Neanderthals | Australopithecus | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
In any scanning exchange of bubbling ordering, if the last exchange is to swap elements X > Y for Y < X, then ( ).
===Choices
X should be rearranged while Y remains static
Y should be rearranged while X remains static
Both X and Y are necess... | X must be in place while Y is not necessarily | general_qa | 141 |
The following is a multiple choice question (with answers).
===Question
Define a positive integer $N$ to have the reversed sum property if there is a three digit number $abc$ with neither $a$ nor $c$ equal to zero and such that $abc+cba=N$ . How many positive integers have the reversed sum property.
===Choices
166
174... | 170 | general_qa | 111 |
The following is a multiple choice question (with answers).
===Question
Let $A=( n+1 / 2 \,, \ n=0 \,, \pm1 \,, \cdots) \,, B=( m \, \sqrt{2 \,} \,, \ m=0 \,, \pm1 \,,$ ...}, find $d ( A, B )$.
===Choices
$$
d ( A, B )=2 \sqrt{2 \,}
$$
$$
d ( A, B )=m
$$
$$
d ( A, B )=\sqrt{3 \,}
$$
$$
d ( A, B )=m^2
$$
$$
d ( A, B )=... | $$
d ( A, B )=0
$$ | general_qa | 240 |
The following is a multiple choice question (with answers).
===Question
What was the title of Paola Massarenghi's spiritual madrigal printed in Arcangelo Gherardini's *Primo libro de madrigali a cinque voci* in 1585?
===Choices
Quando spiega l'insegn'al sommo angelo
Quando spiega l'insegn'al sommo re
Quando spiega l'i... | Quando spiega l'insegn'al sommo padre | general_qa | 209 |
The following is a multiple choice question (with answers).
===Question
Where did the Third Day song "Nothing at All" peak on the Billboard rock charts?
===Choices
32
38
39
35
30
31
33
34
37
36 | 34 | general_qa | 64 |
The following is a multiple choice question (with answers).
===Question
In shaft sinking through bedrock, drilling and blasting operations constitute a major procedure, accounting for approximately () of the entire excavation cycle time.
===Choices
10%~20%
60%~70%
30%~40%
25%~35%
50%~60%
20%~30%
40%~50%
35%~45%
45%~55... | 20%~30% | general_qa | 114 |
The following is a multiple choice question (with answers).
===Question
After the "Marginal Revolution", what is one of the most important assumptions of neoclassical economics?
===Choices
Universal market equilibrium
Constant opportunity cost
Insufficient effective demand
Comparative Advantage
Economic Agent Assumpti... | Economic Agent Assumption | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
The leadership of the Party is the most essential characteristic of socialism with Chinese characteristics and the fundamental guarantee of socialist rule of law. This sentence is the concept of which term?
===Choices
The guiding principles of the... | The leadership of the Party | general_qa | 127 |
The following is a multiple choice question (with answers).
===Question
Voigt model (parallel) can be used to describe ().
===Choices
The Solubility Equilibrium of Salt Solutions
The Healing Process in Metallic Alloys
The Thermal Expansion of Pure Metals
The Stress-Strain Curve of Soft Tissues
The Diffusion Rate in Ga... | The Creep Process of Cross-linked Polymers | general_qa | 124 |
The following is a multiple choice question (with answers).
===Question
The known elephant function
$$
F( z ) \ =z^{2} / [ \ ( z+1 )( z-2 )]
$$
has a convergence area of $|z|>2$. The inverse z-transform of the function is ( ).
===Choices
$${\frac{1}{3}} [ (-1)^{n+1} + 2^{n} ] u(n)$$
$${\frac{1}{3}}[ (-1)^{n-1} + 2^{n}... | $${\frac{1} {3}} [ (-1 )^{n}+2^{n+1} ] u ( n )$$ | general_qa | 376 |
The following is a multiple choice question (with answers).
===Question
Let the domain of discourse $R = \{ 1, 2, 3, 4, 5 \}, \; A, B \in \mathcal{F}(R)$, and
$A = \left( 0.2, 0.3, 0.6, 0.1, 0.9 \right), \; B = \left( 0.1, 0.2, 0.7, 0.2, 0 \right)$.
What is the Euclidean nearness degree?
===Choices
0.3
0.8
0.6
0.7
0.5... | 0.6 | general_qa | 176 |
The following is a multiple choice question (with answers).
===Question
Two men of masses $m_1\ and\ m_2$ hold on the opposite ends of a rope passing over a frictionless pulley. The mass $m_1$ climbs up the rope with an acceleration of $1.2m/s^2$ relative to the rope. The man $m_2$ climbs up the rope with an accelerati... | Time after which they will be at same horizontal level is $1.47 sec$ | general_qa | 317 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements about gender and sexual characteristics is incorrect?
===Choices
Structural abnormalities in sex chromosomes do not produce intersex conditions.
The number and structure of sex chromosomes do not affect sexual dev... | Abnormalities in the number and structure of sex chromosomes affect sexual development but do not affect sexual characteristics. | general_qa | 173 |
The following is a multiple choice question (with answers).
===Question
A cubical box with dimension \( L = \frac{5}{4} \, \text{m} \) starts moving with an acceleration \( \mathbf{a} = 0.5 \, \text{m/s}^2 \, \hat{\mathbf{i}} \) from rest. At the same time, a stone is thrown from the origin with velocity \( \overrighta... | $${ v }_{ 3 }=\dfrac { 5 }{ 4 }$$ | general_qa | 369 |
The following is a multiple choice question (with answers).
===Question
Procaine belongs to which category?
===Choices
amine ether class
aminoether class
carboxylic imide class
ester aminoketone class
ketone ester class
carboxylic amide class
aromatic ester class
aminoketone class
amide class
imide class | aromatic ester class | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
A rod of length $1m$ stands vertically on the ground, with one end hinged to the ground. When it falls on the ground such that it rotates without slipping the velocity of the upper tip on striking the ground is
($g=10m/{s}^{2}$)
===Choices
$$15\s... | Can be not predicted. | general_qa | 219 |
The following is a multiple choice question (with answers).
===Question
Under the conditions of 101.3 kPa and 25°C, water is used in a packing tower to counter currently absorb hydrogen sulfide from a mixed gas. The compositions of the mixed gas entering and exiting the tower are $y_{1}=0.03$ and $y_{2}=0.001$, respect... | $3.670×10^{-5}$ | general_qa | 292 |
The following is a multiple choice question (with answers).
===Question
When is World Population Day?
===Choices
July 17
July 15
July 14
July 10
July 11
July 12
July 16
July 13
July 9
July 18 | July 11 | general_qa | 71 |
The following is a multiple choice question (with answers).
===Question
The highest left ventricular pressure in a cardiac cycle is ().
===Choices
End of ventricular repolarization
Midpoint of left ventricular systole
Isovolumic diastole
End of left ventricular diastole
Slow down the ejection phase
Rapid ejection peri... | Rapid ejection period | general_qa | 106 |
The following is a multiple choice question (with answers).
===Question
In tonal music, the melody part is sometimes repeated in different ways through certain interval relationships. In the classical and early romantic period music works, the melody overlapping intervals generally do not include
===Choices
Perfect oc... | Perfect fifths | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
A plank is moving in a horizontal direction with a constant acceleration $a \hat{l}$. A uniform rough cubical block of side $l$ rests on the plank, and is at rest relative to the plank.
Let the center of mass of the block be at $(0,l/2)$ at a given... | $$(\dfrac{-l}{20},0)$$ | general_qa | 232 |
The following is a multiple choice question (with answers).
===Question
The temperature inside a certain compressed air storage tank changes with the ambient temperature. If the average temperature is 2°C in winter and 20°C in summer, the pressure inside the storage tank remains constant. If a nozzle connected to this ... | 0.969 | general_qa | 145 |
The following is a multiple choice question (with answers).
===Question
A dihybrid plant with genotype PpNn. It produces four types of gametes in following number PN=200, pn=200, Pn=800, pN = 800 then what is the distance between linked genes?
===Choices
15 cM
22 cM
10 cM
25 cM
30 cM
27 cM
14 cM
18 cM
20 cM
28 cM | 30 cM | general_qa | 123 |
The following is a multiple choice question (with answers).
===Question
The ionization constant for acetic acid is 1.8 × 10^-5 . a) Calculate the concentration of H^+ ions in a 0.10 molar solution of acetic acid. b) Calculate the concentration of H^+ ions in a 0.10 molar solution of acetic acid in which the concentrati... | 1.3 × 10^-3 M; 1.8 × 10^-6 M | general_qa | 343 |
The following is a multiple choice question (with answers).
===Question
The main effects of Ruyi Jinhong Powder are ( ).
===Choices
clear heat and remove blood stasis, reduce swelling and activate blood circulation
warm and remove dampness, decrease redness and relieve pain
clear heat and expel dampness, reduce swelli... | clear heat and detoxify, reduce swelling and relieve pain | general_qa | 156 |
The following is a multiple choice question (with answers).
===Question
Using a stirrer, 41.84 J of work is done on 1 mol of a diatomic ideal gas, increasing its temperature by 1 K at constant pressure. If the gas's \( $C_{p, \, \mathrm{m}} = 29.28 \, \mathrm{J} \cdot \mathrm{mol}^{-1} \cdot \mathrm{K}^{-1}$ \), determ... | $$
2 9. \ 1 0 \ \mathrm{J}
$$
$$
3 3. 5 3 \mathrm{~ J}
$$
$$
2 0. 7 9 \mathrm{~ J}
$$
$$
7 0. 9 4 {\mathrm{~ J}}
$$ | general_qa | 869 |
The following is a multiple choice question (with answers).
===Question
According to Article I of the International Bank for Reconstruction and Development Agreement, the purpose of the World Bank is ()
===Choices
to promote private foreign investment by means of guarantees or participations in public loans and privat... | to promote private foreign investment by means of guarantees or participations in private loans and private investments | general_qa | 246 |
The following is a multiple choice question (with answers).
===Question
Using two Carnot refrigerators, obtain a cooling capacity of 0.1W at a temperature level of 0.1K. The first Carnot refrigerator operates between $0.1 K$ and 2K temperatures, while the second Carnot refrigerator operates between 2K and the high temp... | $$
2 9 9. 9 W
$$ | general_qa | 256 |
The following is a multiple choice question (with answers).
===Question
Where is the radula located?
===Choices
The back of the throat
The roof of the mouth
The side of the throat
The side of the tongue
The bottom of the tongue
The floor of the mouth
The upper gum line
The tip of the tongue
The outer edge of lips
The ... | The floor of the mouth | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
The oil, with a density of 800 kg/m³ and a viscosity of 30 cP, flows through a horizontal pipeline with dimensions of φ108 mm × 4 mm at a mass flow rate of 16,000 kg³/h. At point A on the pipeline, the static fluid pressure is 25 kPa. If the local ... | $$q_m=\frac{\pi}{4}d_{inner}^2u_2\rho=0.785\times0.1^2\times0.47\times800=2.95 \mathrm{kg/s=10626kg/h}$$ | general_qa | 819 |
The following is a multiple choice question (with answers).
===Question
Carbonic acid, $H_2CO_3$, is a diprotic acid for which $K_1=10^{-7}$ and $K_2=10^{-11}$. Which solution will produce a pH closet to $9$?
===Choices
$0.1$M $Na_2CO_3$
$0.1$M $NaHCO_3$ and $0.1$M $Na_2CO_3$
0.05M $Na_2CO_3$ and 0.05M $NaHCO_3$
$0.1$... | $0.1$M $H_2CO_3$ | general_qa | 243 |
The following is a multiple choice question (with answers).
===Question
Which of the following descriptions about the dispersal and germination of pine pollen is correct?
===Choices
Pollen enters the ovule through the micropyle using wind, germinates outside the pollen chamber, forms a pollen tube, and then enters the... | Pollen enters the ovule through the micropyle with the help of the pollination drop, germinates in the pollen chamber to form a pollen tube, and then enters the female gametophyte. | general_qa | 456 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements about SDR is correct?
===Choices
SDR can be used by individual citizens for personal transactions
SDR is used to fund military operations
SDR was introduced in the 21st century
SDR has been allocated twice in tota... | SDR is a book asset created by the Fund | general_qa | 147 |
The following is a multiple choice question (with answers).
===Question
How thick was the sandstone reservoir interval in meters where the gas and condensate column was found in the Akoma-1X well?
===Choices
19 m
21 m
22 m
23 m
25 m
20 m
18 m
27 m
24 m
26 m | 20 m | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
If a vibrating tuning fax of frequency 255 Hz is moving with a velocity 4 m/s perpendicular to a wall. The number of beats produced per sec. is (speed of sound in air = 340 m/s)
===Choices
5
4
8
3
9
6
7 | 3 | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
Haddo House, designed by William Adam, contains a collection of 85 paintings by which artist?
===Choices
Thomas Giles
James Gillies
Samuel Giles
Henry Giles
James Giles
James Gillis
John Giles
James Gill
Richard Giles
William Giles | James Giles | general_qa | 71 |
The following is a multiple choice question (with answers).
===Question
A linearly polarized uniform plane wave is obliquely incident from free space onto the boundary of an ideal medium characterized by $\boldsymbol{\sigma}_{1}=0 \,, \, \boldsymbol{\sigma}_{t 1}=4 \,, \, \boldsymbol{\mu}_{t 1}=1$. If the angle between... | $$
= \ 1 8 \ \%
$$ | general_qa | 247 |
The following is a multiple choice question (with answers).
===Question
Particles move with decreasing speed along the circle of the radius R so that at any moment of the time its tangent and centripetal accelerations are equal in magnitude the initial moment, t=0, its speed is u. 1. The time after which the speed of ... | $${{2R} \over u}$$ | general_qa | 196 |
The following is a multiple choice question (with answers).
===Question
What customer information should be considered in the collaborative filtering algorithm?()
I.those with the target customer's interests
II.those with the target customer's interests
III.All those with the target customer's scoring overlap
IV.All us... | Only I and II | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
The number average molecular weight of a sample of polyisobutylene is 428,000. The second virial coefficient measured in chlorobenzene solution at 25 °C is $\varGamma_{2} \!=\! 94.5 \ \mathrm{cm}^{3} \cdot \mathrm{g}^{-1}$. Given that the density o... | 22.7 Pa | general_qa | 228 |
The following is a multiple choice question (with answers).
===Question
Which blood vessel has the worst myogenic autoregulation?
===Choices
Adipose Tissue Vessels
Skeletal Muscle Vessels
Cerebrovascular
Pulmonary Blood Vessels
Bone Blood
Hepatic Blood Vessels
Skin blood vessels
Intestinal Blood Vessels
Renal Blood Ve... | Skin blood vessels | general_qa | 92 |
The following is a multiple choice question (with answers).
===Question
A truck is carry a box of mass $m = 50 \,kg$ on its flat horizontal rough surface with coefficient of friction $p = 0.3$. It is crossing a circular track of radius $27 \,m$. What is the maximum speed of the truck to that the box does not slide from... | $$2.5\,km/hr$$ | general_qa | 180 |
The following is a multiple choice question (with answers).
===Question
At the current level of technology in the research of bioregenerative life support systems, what is the key to further improving the closure degree of the BLSS system?
===Choices
High-efficiency Plant Cultivation
Superior Carbon Dioxide Regulation... | Effective Treatment and Recycling of Solid Waste | general_qa | 118 |
The following is a multiple choice question (with answers).
===Question
What's the notion to which the lexical semantic map in Figure 4 of the paper "New Avenues and Challenges in Semantic Map Research" is dedicated?
===Choices
breathings
breathlessness
breathes
breathing
breath
breaths
breathe | breathe | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
Why is the cation of frame silicate main?
===Choices
Si4+, P5+, N5+
Cu+, Pb2+, Zn2+, Hg2+
K+, Na+, Ca2+, Ba2+
Zn2+, Mn2+, Co2+
Fe3+, Al3+, Ti4+
Cr3+, V3+, Ga3+
K+, Zn2+, Al3+
Fe2+, Mg2+, Mn2+
Ca2+, Sr2+, Be2+
Na+, Mg2+, Ca2+ | Fe3+, Al3+, Ti4+ | general_qa | 123 |
The following is a multiple choice question (with answers).
===Question
How many of the following scales or chords can be played on the harp by plucking (glissando)?
①C diatonic scale
②Ab lydian mode scale
③a minor harmonic's DVII7 chord
④G major's D7 chord
⑤Chromatic scale
===Choices
①②③
①②③④
②③④⑤
①③④ | ①②③ | general_qa | 114 |
The following is a multiple choice question (with answers).
===Question
The core of the overall urban layout is ()
===Choices
Urban land use function organization
Urban architectural styles consideration
Urban population distribution
Urban green space allocation policy
Urban waste management schemes
Urban transportati... | Urban land use function organization | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
A couple of days before her 18th birthday, a girl entered into a contract with an adult.
The girl understood the overall nature and consequences of entering into the contract. The adult knew that the girl was 17 at the time the contract was signed,... | Yes, because the girl was under the age of majority at the time she signed the contract, regardless of the adult's knowledge of this fact. | general_qa | 346 |
The following is a multiple choice question (with answers).
===Question
The accuracy of a sensor refers to ( ).
===Choices
the comparative agreement between the output values and the established standard levels
the agreement level between the sensor's measured quantity and the universally defined true quantity
the deg... | the degree of consistency between the sensor's output indication value and the agreed true value of the measured quantity | general_qa | 183 |
The following is a multiple choice question (with answers).
===Question
When there is a drop greater than 2 meters between the upstream and downstream pipe sections of the culvert, which of the following connections is generally used?
===Choices
Regulating Vault
Siphon Basin
Overflow Pond
Water Chamber
Overflow Well
F... | Fall into a well | general_qa | 86 |
The following is a multiple choice question (with answers).
===Question
A certain reaction obeys the rate equation (in the integrated form) $[C^{(1-n)} - C_0^{(1-n)}] = (n-1)$ kt where C$_o$ is the initial concentration of C is the concentration after time, t. Then:
===Choices
the unit of k for n = 3 is mol litre$^{-1... | the unit of k for n = 3 is litre$^2$ mol$^{-1}$ sec$^{-1}$ | general_qa | 280 |
The following is a multiple choice question (with answers).
===Question
A smooth sphere $A$ of mass $0.1kg$ is moving with speed $5m/s$ when it collides head on with another smooth stationary sphere of same radius. If $A$ is brought to rest by the impact and $e=\cfrac { 1 }{ 2 } $, then,
===Choices
the mass of $B$ is ... | magnitude of impulse during collision is $0.5Ns$ | general_qa | 196 |
The following is a multiple choice question (with answers).
===Question
The option that is not a precancerous lesion is ( ).
===Choices
intestinal lymphangiectasia
leukoplakia
gastric fundic gland polyps
ductal epithelial papilloma-like hyperplasia
solitary rectal ulcer syndrome
Familial adenomatous polyposis
ulcerati... | duodenal ulcer | general_qa | 100 |
The following is a multiple choice question (with answers).
===Question
The detachable strategies of transmedia storytelling enable audiences to move from the REACT phase to the ____ phase, forming a crucial foundation for the occurrence of "cross" media behavior.
===Choices
ENGAGE
INTERACT
JOIN
PLAY
PARTICIPATE
ACT
R... | ACT | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
In true-breeding Virginia tobacco, three dominant alleles respectively determine the shape ($M_0$), color ($C$), and size ($S$) of tobacco leaves. In Carolina tobacco, these three loci are all recessive homozygous. The three gene loci are located o... | 39% | general_qa | 214 |
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