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
On which date did Hung I-Chun release her first solo digital single?
===Choices
March 5, 2022
March 13, 2022
March 2, 2022
March 8, 2022
March 12, 2022
March 23, 2022
March 10, 2022
March 1, 2022
March 3, 2022
March 15, 2022 | March 3, 2022 | general_qa | 136 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is: Numbers whose ternary expansion contains no 1's. Ternary expansion is the representation of a number in base 3. In this context, ensure that the digits in the base 3 representation are only 0's... | [564, 566, 648, 650, 654, 656, 666, 668, 672, 674] | general_qa | 640 |
The following is a multiple choice question (with answers).
===Question
Which of the following can be used as a basis for classifying actinomycetes?
===Choices
Cystidia
Hyphae
Sclerotia
Gametangia
Thallus
Basidia
Conidia
Prokaryotic cells
Mycelium
Sporangia | Mycelium | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
Who was the scientist that first discovered in 1856 that the resistance of metals changes when mechanical stress is applied?
===Choices
James Clerk Maxwell
Michael Faraday
James Prescott Joule
William Thomson
Lord Kelvin | Lord Kelvin | general_qa | 60 |
The following is a multiple choice question (with answers).
===Question
If an extraterrestrial creature, Schmoo, is quite similar to Earth's diploid organisms, in Schmoo individuals, the gene G determines a beautiful appearance, while its recessive mutant gene g determines an ugly appearance. A beautiful female marries... | Their sons who marry attractive individuals of the opposite sex will have beautiful children. | general_qa | 285 |
The following is a multiple choice question (with answers).
===Question
May have the authority to ____ a civilian suspect on installation or _____ a military suspect.
===Choices
Seize, Confiscate.
Monitor, Direct.
Watch, Command.
Identify, Investigate.
Arrest, Transport.
Observe, Capture.
Search, Escort.
Hold, Examine... | Detain, Apprehend. | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
A sphere and a circular cylinder (with its axis perpendicular to the flow) are mounted in the same freestream. A pressure tap exists at the top of the sphere, and this is connected via a tube to one side of a manometer. The other side of the manome... | $$
{4 8. 6^{\circ}}
$$ | general_qa | 264 |
The following is a multiple choice question (with answers).
===Question
Three unequal resistors in parallel are equivalent to a resistant 1 ohm. If two of them are in the ratio 1 :2 and if no resistance value is fractional, the largest of the three resistance in ohm is :-
===Choices
12
14
18
8
16
9
15
6
4
10 | 6 | general_qa | 90 |
The following is a multiple choice question (with answers).
===Question
After a hemiparasitic plant infects the host's root system and forms a xylem-to-xylem connection with the host, it obtains xylem sap from the host plant. Using instruments to measure the negative pressure in the xylem of both the parasitic plant an... | The negative pressure in the xylem of parasitic plants is lower than that of the host plants. | general_qa | 268 |
The following is a multiple choice question (with answers).
===Question
On what day, month, and year was St. Jude's Church, Birmingham consecrated?
===Choices
26 July 1853
26 July 1852
26 July 1849
26 July 1854
26 July 1856
26 July 1850
26 July 1857
26 July 1851
26 July 1858
26 July 1855 | 26 July 1851 | general_qa | 125 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the numerator of the continued fraction expansion whose terms are the first-order differences of exponents in the binary representation of 4*n, with the exponents of 2 being listed in descending... | [17, 17, 22, 19, 23, 16, 23, 24, 27, 19] | general_qa | 528 |
The following is a multiple choice question (with answers).
===Question
Which of the following FRBR groups of entities describes the terms "concept, object, event, place?"
===Choices
Categories of ideas
Types of classifications
Components of context
Aspects of actions
Elements of literature
Creations within systems
Su... | Subjects of works | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
Each time a person's heart beats, the left ventricle ejects $0.07 \mathrm{kg}$ of blood, injecting it into the aorta at a pressure of $26660 \mathrm{Pa}$. With a heart rate of 75 beats per minute, the work done by the left ventricle over 24 hours i... | $$
1. 9 3 \times1 0^{5} \mathrm{J}
$$ | general_qa | 352 |
The following is a multiple choice question (with answers).
===Question
The air entering the lungs passes through tiny sacs called alveoli, from which oxygen diffuses into the blood. The average radius of the alveoli is 0.0050 cm, and the air inside contains 14 mole percent oxygen. Assuming that the pressure in the alv... | $ 1.7 \times 10^{12}$ oxygen molecules | general_qa | 269 |
The following is a multiple choice question (with answers).
===Question
A ray of light is incident from a denser to a rarer medium. The critical angle for total internal reflection is $\theta_{iC}$ and the Brewster's angle of incidence is $\theta_{iB}$, such that $\frac {sin\, \theta_{iC}}{sin\, \theta_{iB}}=\eta $. Th... | 0.4 | general_qa | 141 |
The following is a multiple choice question (with answers).
===Question
Identify which member of each of the following pairs, in general, has the greatest diversity of species. Defend your answer with a sentence or two.
A meadow with a Simpson's Index of 0.215 or a meadow with a Simpson's index of 0.618?
===Choices
Si... | $\frac{} {}$ Simpson's Index of 0.618. $\mathrm{S I}=1-\mathrm{D}$ . D is a measure of the probability that, after you have randomly chosen one organism, the next organism you randomly choose will be of the same species. The higher D, the lower the diversity; therefore, a low SI corresponds to a low diversity . | general_qa | 642 |
The following is a multiple choice question (with answers).
===Question
The equation for the combustion of methane is shown. $CH_{ 4 }+2{ O }_{ 2 }\longrightarrow C{ O }_{ 2 }+2H_{ 2 }O$ The energy change for the combustion of methane is -890kJ/mol. The bond energies are shown in the table.
Wha... | +1335kJ/mol | general_qa | 181 |
The following is a multiple choice question (with answers).
===Question
The hydrolysis of an ester was carried out with 0.1 M $H_2SO_4$ and 0.1 M HCl separately. Which of the following expressions between the rate consists is expected? The rate expression being rate = $k[H^{\oplus}][ester]$
===Choices
$$k_{H_2SO_4} \,... | $$k_{HCl}\, >\, k_{H_2SO_4}$$ | general_qa | 302 |
The following is a multiple choice question (with answers).
===Question
The equilibrium constant for some reactions are given below against each of the reaction :(i)$ 2N_2 +5O_2 \leftrightharpoons 2N_2O_5; K = 5 \times 10^{-27} $(ii) $N_2 +O_2 \leftrightharpoons 2NO; K= 2 \times 10^{-15} $(iii) $ N_2 +2O_2\leftrighthar... | The most stable oxide is NO | general_qa | 288 |
The following is a multiple choice question (with answers).
===Question
Which of the following narrative forms includes scenes and a story, has no narrator, and focuses on life's contradictions?
===Choices
Historical fiction
Satirical sketch
Philosophical dialogue
Lyric poetry
Dramatic poetry
Autobiographical essay
Pa... | Dramatic poetry | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
In the name of 150% Active Brilliant Red K-2BP, Active is the crown name, Brilliant Red is the color name, $\mathbf{K}$ in the end of the word denotes high temperature dyeing type, $\mathbf{B}$ denotes with bluish light, 2B denotes the degree of bl... | intensity | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
If an iodized salt contains $1\%$ of $KI$ and a person takes $2\ g$ of the salt every day, the iodine ions going into his body every day would be approximately $(K=39, I=127)$
===Choices
$$9.2 \times 10^{21}$$
$$7.2 \times 10^{18}$$
$$9.5 \times 1... | $$7.2 \times 10^{19}$$ | general_qa | 209 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements about the determination of robbery is incorrect in China?
===Choices
G stole Kim's purse and, while escaping on foot, pushed Lee when Lee tried to detain him, resulting in slight bruises. G does not constitute rob... | C was caught stealing Liu's car and, while fleeing in the car, ran into a pedestrian, Chen, causing serious injuries. C does not constitute robbery resulting in serious injury. | general_qa | 307 |
The following is a multiple choice question (with answers).
===Question
A photon collides with a stationary target proton, resulting in the following reaction.
$$
\gamma+\mathrm{p} \to\mathrm{p}+\psi^{\prime}
$$
The rest mass of the $\psi^{\prime}$ particle is approximately $4 m_{\mathrm{p}}$, where $m_{\mathrm{p}}$ is... | $$
1 2 m_{\mathrm{p}} c^{2}
$$ | general_qa | 312 |
The following is a multiple choice question (with answers).
===Question
The active ingredient in aspirin is acetyl salicylic acid with $K_{a}=4.0 \times 10^{-9}$. The $pH$ of the solution obtained by dissolving two aspirin tablets (containing $0.36 g$ of acetyl salicylic acid in each tablet) in $250 ml$ of water is ($l... | $$5.25$$ | general_qa | 173 |
The following is a multiple choice question (with answers).
===Question
In a series $LCR$ circuit, $C={10}^{-11}\ Farad$, $L={10}^{-5}$ Henry and $R=100\ ohm$, when a constant $D.C$ voltage $E$ is applied to the circuit, the capacitor acquires a charge ${10}^{-9}C$. The $D.C$ source is replaced by a sinusoidal voltage ... | $${10}^{-8}\ C$$ | general_qa | 245 |
The following is a multiple choice question (with answers).
===Question
What are the three basic temperatures for crops?
===Choices
Highest temperature, lowest temperature, common temperature.
Minimum growth temperature, maximum growth temperature, optimal growth temperature.
Minimum temperature, maximum temperature, ... | Minimum temperature, maximum temperature, optimum temperature. | general_qa | 128 |
The following is a multiple choice question (with answers).
===Question
A pulley in the form of a uniform disc of mass $2\ m$ and radius $r$ free to rotate in a vertical plane about a fixed horizontal axis through its centre. A light inextensible string has one end fastened to a point on the rim of the pulley and is wr... | $$J=2m\sqrt{gr}$$ | general_qa | 287 |
The following is a multiple choice question (with answers).
===Question
A small block of mass $m =1$ is placed to a plank which moves on a horizontal frictionless surface. The mass of the plank is $M = 4\ kg$, and its length is $L = 0.8\ m$. The coefficient of friction between the plank and the block is $0.4. [g = 10\ ... | $$15$$ | general_qa | 183 |
The following is a multiple choice question (with answers).
===Question
pt. with acute onset of left side weakness and loss of sensation over left side of body with facial sparing. on protrusion of tongue , detes to the right side which aery involved ?
===Choices
V Tuberculum PICA
CAROTID AERY
PICA
AICA
PIAL AERY
V Te... | PICA | general_qa | 102 |
The following is a multiple choice question (with answers).
===Question
A 70-year-old man with a 2 year history of Alzheimer disease presents is brought in from his nursing facility with altered mental status and recurrent falls during the past few days. Current medications include donepezil and galantamine. His vital ... | Cryoprecipitate, FFP and low dose SC heparin | general_qa | 371 |
The following is a multiple choice question (with answers).
===Question
What is Xenophon's work that discusses the function of money as a store of value?
===Choices
"Spartan Economics"
"Greek Financial Principles"
"Currency Theory"
"Athens' Expend"
"The Wealth of Nations"
"Mediterranean Trade Analysis"
"Hellenic Monet... | "Athens' Revenue" | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
The external system is equivalenced using the REI equivalence method, where the external system is equivalenced as( ).
===Choices
A radial simple network
A circular dynamic network
Linked nodes in a mesh configuration
A complex loop structured sys... | A radial simple network | general_qa | 102 |
The following is a multiple choice question (with answers).
===Question
Given that a certain distillation column operates with binary feed, the operating lines for the enriching and stripping sections are as follows: Enriching section \( y = 0.714x + 0.271 \); Stripping section \( y = 1.25x - 0.01 \). What is the mole ... | 0.637 | general_qa | 164 |
The following is a multiple choice question (with answers).
===Question
The metabolic pathways occurring in the cytoplasm include glycolysis, the pentose phosphate pathway, and _________.
===Choices
mitochondrial biogenesis
fatty acid synthesis
cholesterol breakdown
ketone body formation
DNA replication
oxidative phos... | fatty acid synthesis | general_qa | 86 |
The following is a multiple choice question (with answers).
===Question
What is the KEGG of Allopurinol, a medication used to decrease high blood uric acid levels?
===Choices
D02420
D02240
D02242
D02241
D02244
D02243
D00224
D02246
D02245
D02247 | D00224 | general_qa | 111 |
The following is a multiple choice question (with answers).
===Question
What is the representative work of nuclear weapons war theory?
===Choices
"Nuclear Arms Control: A Global Perspective"
"Deterrence Theory: A Critical Analysis"
"Nuclear Strategy in the Modern World"
"Nuclear Conflict: Theories and Realities"
"The ... | "Absolute Weapons: Atomic Power and World Order" | general_qa | 111 |
The following is a multiple choice question (with answers).
===Question
The incident initiated by Japan to promote the "anti-communist autonomy" movement in the five provinces and two cities of North China is ( ).
===Choices
Mukden Incident
Sino-Japanese War Incident
Hebei-Autonomy Movement Incident
Hebei-Chahar Incid... | North China Incident | general_qa | 105 |
The following is a multiple choice question (with answers).
===Question
Where do striated nodes appear?
===Choices
Chordal surfaces
Round timber surface
Horizontal slabs
Longitudinal sections
Rotary cut veneer
Parallel fibers
Tangential planes
Cross-sectional cores
Cubical interiors
Radial surfaces | Radial surfaces | general_qa | 68 |
The following is a multiple choice question (with answers).
===Question
Which ethnic group's "jumping string" dance has inspired the "rocking step" seen in Yunnan flower lantern performances?
===Choices
Lisu Ethnic Group
Hani Ethnic Group
Yi Ethnic Group
Naxi Ethnic Group
Tibetan Ethnic Group
Dai Ethnic Group
Zhuang E... | Dai Ethnic Group | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
Which of the following sets of phrases best summarizes the following product?
Product Title: STMT Simply Charming DIY Jewelry by Horizon Group Usa, Vsco Girl Peace, Love, Serenity, Freedom, Happiness, Luck, Karma & Friendship Charms & Beads... | own, simply charming, kit | general_qa | 314 |
The following is a multiple choice question (with answers).
===Question
The potential energy function for the force between two atoms in a diatomic molecule is approximately given by $U\left(x\right)=\dfrac{a}{{x}^{12}}-\dfrac{b}{{x}^{6}}$, where $a$ and $b$ constants and $x$ is the distance between the atoms. Find $x$... | $$\left(\dfrac{2a}{b}\right)^{1/2}$$ | general_qa | 292 |
The following is a multiple choice question (with answers).
===Question
The number of live bih per 1000 women in the Reproductive age group in a year refers to:-
===Choices
Gross Reproduction Rate
Specific Fertility Rate
Total feility rate
Specific Fertility Rate per 1000 women
Total Fertility Rate
Crude Birth Rate
Cr... | General Feility Rate | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
The mass of the vertical engine is $M = 10^4 \, \mathrm{kg}$, with a base area of $S = 100 \, \mathrm{m}^2$, and the specific stiffness of the soil under the base is $\lambda = 490 \, \mathrm{kN/m^3}$. The length of the engine's crank is $r = 30 \,... | $$3592.7kg$$ | general_qa | 342 |
The following is a multiple choice question (with answers).
===Question
The main genetic mechanism of hydatidiform mole is
===Choices
excess of maternal genome, but with paternal dominance;
excess of maternal genome, but with maternal dominance;
excess of maternal and paternal genomes, but with paternal dominance;
exc... | excess of paternal genome; | general_qa | 129 |
The following is a multiple choice question (with answers).
===Question
Moving a positively charged body A from a distance to a position near an uncharged conductor B will cause the electric potential of conductor B to _____.
===Choices
Decrease
Invert
Fluctuate
Stabilize
Remain unchanged
Nullify
Equalize
Increase
Be ... | Increase | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
the expenditure approach and the income approach. The following is a list of national income figures for a given year. Arrange them in the form of a consolidated income statement with reven-ues and allocations (' expenses ') for the whole of the ec... | 741 | general_qa | 243 |
The following is a multiple choice question (with answers).
===Question
How much electricity will be required to decompose 454g of water by electrolysis? The overall reaction is 2H_2O \rightarrow 2H_2 + O_2.
===Choices
25.2 faradays
12.6 faradays
100.8 faradays
75.6 faradays
150.4 faradays
50.4 faradays
125.6 faradays... | 50.4 faradays | general_qa | 132 |
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 Russian Symbolist poet often referred to as the "Poet of Demons" is Sologub (Фёдор Сологуб).
II. Blok (Александр Блок) described Solog... | I and III and V and VI | general_qa | 286 |
The following is a multiple choice question (with answers).
===Question
The speed of sound on the sea surface is 1500 m/s, and the sound speed gradient in the sea is constantly -0.1/s. The sonar transducer is at a depth of 10 m. When the transducer's depression angle is 4.5°, a target is found at a horizontal distance ... | 122m | general_qa | 150 |
The following is a multiple choice question (with answers).
===Question
The colony characteristics of Nocardia are ( ).
===Choices
Only substrate mycelium exists, without any aerial layer and a moderate adhesive force.
Both aerial and substrate mycelium are robust, with a very thin layer of adhesive material. Growth i... | Only substrate mycelium is present, with no aerial mycelium or only a very thin layer of aerial mycelium. The adhesive force is poor. | general_qa | 239 |
The following is a multiple choice question (with answers).
===Question
Using the iterative method to find the root of the equation
$$
f(x) = x - e^{-x} = 0
$$
in the interval $[\frac{1}{2}, \ln 2]$, what is the root $\alpha$, accurate to 4 significant figures?
===Choices
$$ \alpha\approx0.567125 $$
$$ \alpha\approx0.... | $$
\alpha\approx0.567157
$$ | general_qa | 229 |
The following is a multiple choice question (with answers).
===Question
\( \int x \cos^2 x \, dx \) = ( )
===Choices
\frac{x^2}{4} - \frac{x}{4} \sin 2x + \frac{1}{8} \cos 2x + C
\frac{x^2}{4} + \frac{x}{4} \cos 2x - \frac{1}{8} \cos 2x + C
\(\frac{x^2}{4} + \frac{x}{4} \sin 2x - \frac{1}{8} \cos 2x + C \)
\frac{x^2}{... | \( \frac{x^2}{4} + \frac{x}{4} \sin 2x + \frac{1}{8} \cos 2x + C \) | general_qa | 412 |
The following is a multiple choice question (with answers).
===Question
A rectangular room with rigid walls, measuring $3.12 \ \mathrm{m} \times 4.69 \ \mathrm{m} \times 6.24 \ \mathrm{m}$, seek to find its lowest three natural frequencies.
===Choices
25.3 Hz,34.7 Hz,44.1 Hz
30.2 Hz,40.0 Hz,49.0 Hz
28.3 Hz,37.5 Hz,46.... | 27.6 Hz,36.8 Hz,46.0 Hz | general_qa | 251 |
The following is a multiple choice question (with answers).
===Question
A charge particle of charge $q$ and mass $m$ is clamped rigidly at the circumference of a ring with mass $m$ and radius $R$. Initially ring is in vertical plane resting on a sufficiently rough horizontal surface with charge $q$ at the same horizont... | $$ \dfrac{4}{7} mgR$$ | general_qa | 277 |
The following is a multiple choice question (with answers).
===Question
During the startup process of a nuclear reactor, without any operation by the operator, the reactor power increases from $3 {\times} 10^{-6} \%~ \mathrm{FP}$ to $5 \times 10^{-6} \%~\mathrm{FP}$ within two minutes. What is the average nuclear react... | $$234.91~s$$ | general_qa | 202 |
The following is a multiple choice question (with answers).
===Question
Enzyme___, due to their structure being similar to that of the substrate, jointly compete for the enzyme's active site.
===Choices
competitive inhibitors
allosteric regulators
active blockers
molecular imposters
reaction enhancers
structural isome... | competitive inhibitors | general_qa | 86 |
The following is a multiple choice question (with answers).
===Question
what is the limit of $2/\sqrt{\pi}*\sqrt{n}\int_0^1(1-x^2)^n dx$ as n goes to infinity?
===Choices
Infinity
0.5
3.0
1.5
2.0
0.0
1.0
2/\sqrt{\pi}
-1.0
1/\sqrt{\pi} | 1.0 | general_qa | 96 |
The following is a multiple choice question (with answers).
===Question
The most light-loving of the following tree species is:
===Choices
Orchid
Hosta
Staghorn fern
Birch
Sugimoto
Camellia
Korean pine
Spruce
Evergreen
Clematis | Birch | general_qa | 65 |
The following is a multiple choice question (with answers).
===Question
Styrene $( \mathbf{M}_{1} )$ and acrylonitrile $( \mathbf{M}_{2} )$ are copolymerized, with $r_{1}=0.4$ and $r_{2}=0.04$. What should be the initial monomer mixture ratio (mass ratio) and feeding method if the desired copolymer composition contains... | 76/24, single batch feeding | general_qa | 217 |
The following is a multiple choice question (with answers).
===Question
A young woman has experienced low-grade fever, fatigue, and left side back pain for over 3 months. CT shows enlargement of the left kidney shadow, with uneven density at the upper pole of the left kidney and speckled calcification. Enhanced scans r... | Tuberculosis of the upper pole of the left kidney | general_qa | 278 |
The following is a multiple choice question (with answers).
===Question
According to the interpretation of the 2010 International Commercial Terms,which of the following terms can only be applied to water transport?
===Choices
CIP
DAP
CFR
FOB
DAT
CPT
EXW
FCA | FOB | general_qa | 67 |
The following is a multiple choice question (with answers).
===Question
A cell with multiple reactivity is ().
===Choices
NKT cells
Th1 cells
CD8+ cells
Treg cells
B-2 cells
CD4+ cells
Th2 cells
γδ T cells
NK cells
B-1 cells | B-1 cells | general_qa | 69 |
The following is a multiple choice question (with answers).
===Question
In a $0.010 mol/L$ zinc-ammonia solution, if the concentration of free ammonia is $0.10 mol/L$.What is the total side reaction coefficient of zinc ions at $pH 10$?
===Choices
$$
1 0^{4. 2 0}
$$
$$
1 0^{6. 5 2}
$$
$$
1 0^{7. 8 8}
$$
$$
1 0^{5. 0 1}... | $$
1 0^{5. 4 9}
$$ | general_qa | 217 |
The following is a multiple choice question (with answers).
===Question
Consider an $\mathbf{n}$-type semiconductor material with a dark conductivity of 100 S/cm at room temperature. When exposed to light with intensity $I = 10^{-6} \, \mathrm{W / cm}^{2}$, and an absorption coefficient $\alpha = 10^{2} / \mathrm{cm}$,... | $$
5. 1 1 \times1 0^{2 1}
$$ | general_qa | 396 |
The following is a multiple choice question (with answers).
===Question
The electric field and magnetic field of a uniform plane wave in an ideal medium are given as follows:
$$
E \,=\, e_{x} \, 10 \, \cos \left( \, 6 \, \pi \times 10^{7} t \,-\, 0. 8 \, \pi z \, \right) \, \mathrm{V / m},
$$
$$
H \,=\, e_y \, \frac{1}... | $$
\mu_{\mathrm{r}} \,=\, 2 \,, \varepsilon_{\mathrm{r}} \,=\, 8
$$ | general_qa | 577 |
The following is a multiple choice question (with answers).
===Question
A channel is an important I/O method, and one of the channels suitable for connecting a large number of terminals and printers is ( ).
===Choices
Multi-byte Channel
Dual Path Selector
Printer Network Channel
Audio Output Channel
High-speed Cable C... | Multi-byte Channel | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
With the development of science and technology, subway technology is also showing a diversified development trend at present, including (), () and ().
===Choices
Swift subway, slow-paced subway, little subway
Accelerated subway, usual subway, peti... | Heavy subway, light subway, micro subway | general_qa | 141 |
The following is a multiple choice question (with answers).
===Question
Let A be a symmetric transformation of a finite-dimensional Euclidean space $V$. Which of the following statements is correct?
===Choices
Eigenvectors of A corresponding to the same eigenvalue are not necessarily orthogonal
Eigenvectors of A corre... | Eigenvectors of A corresponding to different eigenvalues are orthogonal | general_qa | 195 |
The following is a multiple choice question (with answers).
===Question
$ABC$ is a scalene triangle. Points $D$ , $E$ , and $F$ are selected on sides $BC$ , $CA$ , and $AB$ respectively. The cevians $AD$ , $BE$ , and $CF$ concur at point $P$ . If $ [AFP] = 126$ , $[FBP] = 63$ , and $[CEP] = 24$ , determine the area of ... | 351 | general_qa | 164 |
The following is a multiple choice question (with answers).
===Question
For reaction $A(g)+3B(g)\rightarrow 2C(g);\Delta H^{\circ}=-24kJ$ The value of $\Delta G^{\circ}$ is -9 kJ. The standard entropy change of reaction is:
===Choices
$$-10 JK^{-1}$$
$$-5 JK^{-1}$$
$$50 JK^{-1}$$
$$-500 JK^{-1}$$
$$0.5 JK^{-1}$$
$$5 J... | $$5 JK^{-1}$$ | general_qa | 163 |
The following is a multiple choice question (with answers).
===Question
When $t_k = 40°C$and $t_0 = 0°C$, what is the refrigeration factor of a Freon-11 two-stage turbine refrigeration unit with an intermediate vessel? It is known that the refrigerant liquid entering the intermediate vessel and the refrigerant steam in... | 4.67 | general_qa | 192 |
The following is a multiple choice question (with answers).
===Question
Evaluate $\int\int\int_{E}{(2 \cdot x+5 \cdot y+7 \cdot z) d V}$, where $E$ is the region defined by:
$$
E = \left\{(x,y,z) | 0 \le x \le 1, 0 \le y \le -x+1, 1 \le z \le 2\right\}
$$
===Choices
74/12
70/12
77/12
72/12
75/12
71/12
79/12
78/12
73/1... | 77/12 | general_qa | 166 |
The following is a multiple choice question (with answers).
===Question
In a Young's double slit experiment the slits are illuminated by a parallel beam of light from the medium of refractive index $n_{1} = 1.2\ A$ thin transparent film of thickness $1.2\mu m$ and refractive index $n = 1.5$ is placed infront of $s_{1}$... | $$4I$$ | general_qa | 207 |
The following is a multiple choice question (with answers).
===Question
Find the zeros of $\tan(x) + \tan\left(\frac{ \pi }{ 4 } + x\right) = -2$.
===Choices
x_{1}=-\frac{ \pi }{ 4 }+\pi \cdot n, x_{2}=\frac{ \pi }{ 4 }+n \cdot \pi
x_{1}=-\frac{ \pi }{ 6 }+\pi \cdot n, x_{2}=\frac{ \pi }{ 6 }+n \cdot \pi
x_{1}=-\frac{... | x_{1}=-\frac{ \pi }{ 3 }+\pi \cdot n, x_{2}=\frac{ \pi }{ 3 }+n \cdot \pi | general_qa | 217 |
The following is a multiple choice question (with answers).
===Question
The depth of the pile foundations for a river-crossing railway bridge is calculated according to the following assumptions: the pile foundations and the load must be balanced by the pressure from the soil at the bottom of the pile foundation and th... | $$
11 m
$$ | general_qa | 373 |
The following is a multiple choice question (with answers).
===Question
Among the following oxides, which one is the easiest to reduce under blast furnace smelting conditions?
===Choices
MgO
ZnO
CoO
Na2O
AlO
Li2O
NiO
K2O
FeO
CaO | FeO | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
Consider the following equation for a cell reaction:
$$A+B\longrightarrow C+D\quad ;\quad E^\circ=x\quad volt,\triangle G=\triangle G_{1}$$
$$2A+2B\longrightarrow 2C+2D\quad ;\quad E^\circ=y\quad volt,\triangle G=\triangle G_{2}$$
===Choices
$$x=y... | $$x=y,\quad \triangle G_{1}=\triangle G_{2}$$ | general_qa | 313 |
The following is a multiple choice question (with answers).
===Question
The neurotransmitter of postganglionic sympathetic fibers is ( ).
===Choices
Epinephrine or Serotonin
Acetylcholine
Norepinephrine
Indolamine or Norepinephrine
GABA or Epinephrine
Histamine or Acetylcholine
Dopamine
Glutamate or Dopamine
Norepinep... | Norepinephrine or Acetylcholine | general_qa | 104 |
The following is a multiple choice question (with answers).
===Question
In which year was the book 'P assassin chanting Theory of Flower Arrangement ( metic)' completed?
===Choices
1594
1593
1601
1598
1600
1592
1597
1596
1599
1595 | 1599 | general_qa | 86 |
The following is a multiple choice question (with answers).
===Question
The patient, male, 24 years old and 60kg in weight, was burned on his head, face, neck, upper limbs, chest and abdomen. There were blisters on his face, and the wound was red, with apparent pain. The wounds on neck, two upper limbs, chest and abdom... | Major burn | general_qa | 157 |
The following is a multiple choice question (with answers).
===Question
The ability of salivary amylase to hydrolyze starch is reduced after dialysis, what is the reason for this?
===Choices
Increase in competitive inhibitors
Loss of C1⁻
Enzyme disulfide bonds broken
Loss of coenzyme A
Enzyme levels significantly redu... | Loss of C1⁻ | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
How many grams of $ H_{2}S $ will react with $6.32 g$ $ KMnO_{4} $ to produce $ K_{2}SO_{4} $ and $ MnO_{2} $? $(K = 39, Mn = 55)$
===Choices
$$4.08 g$$
1.04 g
$$0.85 g$$
0.61 g
1.02 g
1.03 g
$$0.51 g$$
$$2.04 g$$
0.76 g
1.53 g | $$0.51 g$$ | general_qa | 148 |
The following is a multiple choice question (with answers).
===Question
What is the unit of allocation of file storage space in a file system?
===Choices
Byte
Batch
Sector
Cluster
Block
Word
Packet
Group
Bit
File | Block | general_qa | 51 |
The following is a multiple choice question (with answers).
===Question
Given $f \! \in\! L^{p}(\mathbb{R}^{1}) \, (p \! > \! 1)$, and $1/p \!+\! 1/p^{\prime} \!=\! 1$, let $F(x) = \int_{0}^{t} f(t) \, dt$, $x \in \mathbb{R}^{1}$. Find the value of $| F(x+h) - F(x) |$.
===Choices
$$
O ( \left| h \right|^{2 / p^{\prime... | $$
o ( \left| h \right|^{1 / p^{\prime}} ) \,, \quad h \to0
$$ | general_qa | 411 |
The following is a multiple choice question (with answers).
===Question
What are the two main criteria for evaluating the implementation of a city's master plan?
===Choices
Regulation & Compliance.
Performance & Consistency.
Organization & Management.
Vision & Sustainability.
Scalability & Stability.
Growth & Developm... | Performance & Consistency. | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
The propagation constant of a transmission line is $\gamma=0.0091+\mathrm{j} 0.8 \, \text{km}^{-1}$, and the characteristic impedance is $Z_{0} = 500 e^{-j 12^{\circ}} \, \Omega$. Suppose the input signal voltage at the start of the transmission li... | 1.28(ms) | general_qa | 259 |
The following is a multiple choice question (with answers).
===Question
The coil of a galvanometer has 50 turns and encloses an area of $6 \, \mathrm{cm}^{2}$, with the magnetic field $B$ in the swinging area equal to 0.01 T. The elastic constant of the torsion wire is $K=10^{6} \, \mathrm{N \cdot m / (degree)}$. If a ... | $$
\alpha=3 0^{\circ} \operatorname{or} 1 5 0^{\circ}
$$ | general_qa | 418 |
The following is a multiple choice question (with answers).
===Question
On what month, day, and year was the cave known as Ursa Minor first discovered in Sequoia National Park, California, United States?
===Choices
August 19, 2010
August 19, 2005
August 19, 2009
August 19, 2003
August 19, 2004
August 19, 2007
August 1... | August 19, 2006 | general_qa | 156 |
The following is a multiple choice question (with answers).
===Question
If an $\alpha$ particle moves in a magnetic field with a magnetic induction strength of $B$ along a circular path with a radius of $R$, what is the de Broglie wavelength of the $\alpha$ particle?
===Choices
$\frac{h}{2B}$
$\frac{h}{3eRB}$
$\frac{h... | $\frac{h}{eRB}$ | general_qa | 157 |
The following is a multiple choice question (with answers).
===Question
The main component of the medicinal herb honeysuckle is ()
===Choices
Polyphenols
Amino acids
Organic compounds
Alkaloids
Flavonoids
Saponins
Terpenoids
Phenolic acids
Essential oil
Chlorogenic acid | Chlorogenic acid | general_qa | 71 |
The following is a multiple choice question (with answers).
===Question
0.1 mole of $ \mathrm { N } _ { 2 } \mathrm { O } _ { 4 } ( \mathrm { g } ) $ was sealed in a tube under one atmospheric conditions at 25$ ^{\circ}C$. Calculate the number of moles of $ \mathrm { NO } _ { 2 } ( \mathrm { g } ) $ present, if the equ... | $$0.034$$ | general_qa | 352 |
The following is a multiple choice question (with answers).
===Question
What is the format of the combat competitive event group competition ?
===Choices
One-on-one confrontation
Random combat pairings
Collaborative skill demonstrations
Randomized group showdowns
Cooperative group exercises
Turn-based point sparring
F... | One-on-one confrontation | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
What is the main reason for the presence of anti-nutritional factors in plant-based feed?
===Choices
Heat stress effects on growth
Decreased soil mineral content
Natural selection in the wild
Genotoxicity
Specific herbivore resistance needs
Water ... | Enhancement of the plant's own immunity | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
An LED display screen has a pixel pitch of 3 mm. To display an image with a resolution of 1920×1080, its minimum display area is:
===Choices
5.76 m²
8.64 m²
4.32 m²
7.15 m²
2.30 m²
5.20 m²
1.73 m²
0.86 m²
3.46 m²
6.50 m² | 5.76 m² | general_qa | 124 |
The following is a multiple choice question (with answers).
===Question
Two balls of equal masses are thrown upwards along the same vertical direction at an interval of 2 seconds, with the same initial velocity of $40 ms^{-1}$. Then these balls collide at a height of (use $g=10 ms^{-2})$
===Choices
$$52.2 m$$
$$94.2 m... | $$125 m$$ | general_qa | 154 |
The following is a multiple choice question (with answers).
===Question
A pressure-type wave gauge is placed on the seabed at a certain depth. It measures a wave period $ T = 5 \text{seconds} $, a maximum pressure $ P_{\text{max}} = 85250 \text{N/m}^2 $ (including hydrostatic pressure but excluding atmospheric pressure... | 4.0 | general_qa | 163 |
The following is a multiple choice question (with answers).
===Question
What are the various methods by which PL/I debugs or notesdefects in a program while processing it?
===Choices
Automated unit tests, Integration testing, Regression testing
Real-time performance monitoring, Assert statements, Stack trace analysis
... | CONVERSION condition, Overflow and underflow, Division by zero, Indicating the end of input data, ON statement | general_qa | 154 |
The following is a multiple choice question (with answers).
===Question
The patient is a 21-year-old male who had allergic rhinitis three years ago, experiencing sneezing and a runny nose every autumn. After going out yesterday, he experienced shortness of breath. Before the onset, he felt itching in his ears and nose,... | Wind-phlegm wheeze | general_qa | 184 |
The following is a multiple choice question (with answers).
===Question
What is the first literary trend of thought in the new period of Chinese literature?
===Choices
Root-seeking
Rectification
Scar
Reflection
Avant-garde
Reform | Root-seeking | general_qa | 50 |
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