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
Among sexual behaviors, () is the most efficient in transmitting HIV.
===Choices
Transferred from host to guest
Women pass it on to men
Transition from women to children
Passed from elders to youth
Passed through blood transfusions
From friend to ... | Man to man (male to female) | general_qa | 93 |
The following is a multiple choice question (with answers).
===Question
A point charge $q=100 \mu C$ is located in the x-y plane at the point with position vector \[ \vec{r_0} = 2 \hat{i} + 3 \hat{j} + \hat{k} \] What is the electric field vector(in kV/m) at the point with position vector \[ \vec{r} = 8 \hat{i} - 5 \ha... | $$54 \hat{i} - 72 \hat{j}$$ | general_qa | 302 |
The following is a multiple choice question (with answers).
===Question
Calcium Lactate is a salt of weak acid and represented as $Ca(Lac)_{2}$. A saturated solution of $Ca(Lac)_{2}$ contains $0.125$ mole of salt in $0.50 L$ solution. The $pOH$ of this is $5.60$. Assuming complete dissociation of salt, calculate $K_{a}... | $$6.34 \times 10^{-17}$$ | general_qa | 271 |
The following is a multiple choice question (with answers).
===Question
In the process of literary reception, after we finish reading a novel or a poem, the characters and scenes from the work may linger in our minds, the thoughts and emotions may continue to resonate within us, and the charm and artistic conception ma... | Lingering effect. | general_qa | 157 |
The following is a multiple choice question (with answers).
===Question
Cildo Meireles began working on "Virtual Spaces" during what year?
===Choices
1969
1964
1971
1968
1963
1966
1972
1970
1967
1965 | 1968 | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
From 1855 to 1859, James Luke Prendergast (1800-1895) served as Liberal MHA for what Canadian town?
===Choices
Port de France
Bonavista
St. John's
Port de Grave
Harbour Breton
Bay de Verde
Harbour Grace
Bay Roberts
Carbonear
Trinity | Harbour Grace | general_qa | 96 |
The following is a multiple choice question (with answers).
===Question
Based on the burial conditions of groundwater, it can be classified into vadose zone water, ____ and _____.
===Choices
Marsh water, Swamp water
Bound water, Capillary water
Aquifer, Aquitard
Constrained water, Liberated water
Confined water, Uncon... | Unconfined water, confined water | general_qa | 117 |
The following is a multiple choice question (with answers).
===Question
What attribute of the literary audience is comprehensively discussed in Confucius' theory of "evoking emotions, observing customs, fostering social bonds, and expressing grievances"?
===Choices
The analytical attribute.
The observational attribute... | The holistic attribute. | general_qa | 90 |
The following is a multiple choice question (with answers).
===Question
An ideal gas expands according to the law ${ PV}^{3/2 }$ = constant. We conclude
===Choices
The molar heat capacity $C = C_v-2R$
The adiabatic exponent of the gas $K = 1.5$
The molar heat capacity \( C = C_v + \frac{5R}{2} \)
Temperature increas... | The molar heat capacity $C = C_v-2R$ | general_qa | 188 |
The following is a multiple choice question (with answers).
===Question
In industry, an alcoholic solution of sodium ethoxide is prepared by heating ethanol and sodium hydroxide in benzene. In the reaction system of ethanol, benzene, and water, water is the least component, and if it can be continuously removed, it wil... | Favorable, $64.9^{\circ} \ \mathrm{C}$ | general_qa | 322 |
The following is a multiple choice question (with answers).
===Question
Under Chinese law,company A often sends salesperson B to make contracts with Company C. After B is transferred, B, who still has a contract signed with Company A's official seal, enters into a new contract with Company C, not knowing that B has bee... | Company A should assume the consequences of the contract. | general_qa | 215 |
The following is a multiple choice question (with answers).
===Question
In qualitative analysis, cations of group II, as well as group IV, precipitated in the form of sulphides. Due to the low value of $K_{sp}$ of group II sulphides, the group reagent is $H_2S$ in presence of dil. $HCl$ and due to high value of $K_{sp}... | $$1.24$$ | general_qa | 347 |
The following is a multiple choice question (with answers).
===Question
The core of a certain reactor is composed of U-235, $H_2O$, and Al, with volume fractions of 0.002, 0.6, and 0.398 respectively. What is the total absorption cross-section of the core at $E=0.0253eV$?
===Choices
$$
9. 1 ~ m^{-1}
$$
$$
10. 5 ~ m^{-... | $$
8. 4 ~ m^{-1}
$$ | general_qa | 222 |
The following is a multiple choice question (with answers).
===Question
Which of the following is similar to that of khosla's theory?
===Choices
Coulomb's conjecture
Darcy's principle
Bligh's theory
Archimedes' paradox
Kirchhoff's postulate
Mohr's criterion
Dupuit's equation
Rankine's formula
Bernoulli's theorem
Terza... | Bligh's theory | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the number of digits in n! (n factorial) excluding any trailing zeros in its decimal representation. Given the input x_list (a series of values): [67, 68, 69, 70, 71, 72, 73, 74, 75, 76], determ... | [80, 82, 84, 85, 86, 88, 90, 92, 92, 94] | general_qa | 509 |
The following is a multiple choice question (with answers).
===Question
Preventive interventions are designed to prevent potential or existing problems ().
===Choices
Evolving into legal troubles
Resulting in social isolation
Causing sleep disruption
Becoming a chronic illness
Leading to financial ruin
Turning into ac... | Becoming a disability | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
A dead body with suspected poisoning is having hypostasis of red brown or deep blue in colour. It is suggestive of poisoning due to
===Choices
Sulfides
Carbon monoxide
Nitrates
Barbiturates
Nitrites
Arsenic
Cyanides
Mercury | Nitrates | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
An increase in certain components in slag can improve the fluidity of the slag. Which components are they?
===Choices
SiO₂,Fe₂O₃,TiO₂
MgO,MnO,FeO
MgO,MnO,SiO₂
Al₂O₃,MnO,Fe₂O₃
MnO,CaO,ZnO
FeO,Al₂O₃,CaO
SiO₂,FeO,CaO
MgO,TiO₂,ZnO
Al₂O₃,TiO₂,CaO
ZnO,M... | MgO,MnO,FeO | general_qa | 154 |
The following is a multiple choice question (with answers).
===Question
The characteristic of President Xi Jinping's speeches includes the apt use of classical quotations. In the speech "At the Symposium on Literature and Art" published by Xinhua News Agency on October 14, 2015, he appropriately cited ancient poems and... | Social consciousness is the spiritual aspect of social life, reflecting social existence. | general_qa | 406 |
The following is a multiple choice question (with answers).
===Question
A 7-year-old girl presents for a follow-up visit after recent discharge from the hospital. She was admitted about 4 months ago for symptoms of seizures, altered mental status, and fever. She was diagnosed during that admission with herpes encephali... | Amygdala | general_qa | 248 |
The following is a multiple choice question (with answers).
===Question
The shell flies along a flat trajectory (i.e., a trajectory approximated as a straight line) with a speed of $v_{0}=900 \mathrm{~m/s}$, at a shooting latitude of $\varphi=60^{\circ}$, and the target is 18 km away.What is the deviation of the shell ... | $\approx13.13\cos\theta$m | general_qa | 231 |
The following is a multiple choice question (with answers).
===Question
What is the thickness of the earth's crust in mountainous areas, especially the Himalayas?
===Choices
70-75 km
55-60 km
75-80 km
65-68 km
73-78 km
68-71 km
60-65 km
58-63 km
50-55 km
72-77 km | 70-75 km | general_qa | 105 |
The following is a multiple choice question (with answers).
===Question
The creep characteristics of overhead lines primarily depend on( ).
===Choices
Current flow rate and voltage level
Length of the conductor wire
Insulation type and installation techniques
Molecular structure and crystallization method of wire mate... | Molecular structure and crystallization method of wire materials. | general_qa | 103 |
The following is a multiple choice question (with answers).
===Question
With the increasing intensification of Sino-foreign and domestic contradictions, the Qing government tried to maintain its feudal rule by strengthening its political, economic and military strength, embarking on a rugged road of self-reliance and w... | "Treaty of Shimonoseki" | general_qa | 175 |
The following is a multiple choice question (with answers).
===Question
The condition for the coaxial system $x^2+y^2+2\lambda x+c=0$, where $\lambda$ is a parameter and c is a constant, to have distinct limiting points, is?
===Choices
$$c=-1$$
$$c \leq 0$$
$$c=0$$
c \geq 1
c = -2
$$c > 0$$
c = 1
$$c \geq 0$$
c < 0 | $$c > 0$$ | general_qa | 119 |
The following is a multiple choice question (with answers).
===Question
The distance from the liquid surface of the supporting liquid in the storage tank of the Anxuci Type 4 Gyro Compass to the top of the filling hole is generally ______.
===Choices
4~5cm
7~8cm
4~5mm
10~15cm
6~7cm
5~6cm
1~1.5cm
3~4cm
1~2cm
8~9cm | 4~5cm | general_qa | 106 |
The following is a multiple choice question (with answers).
===Question
Sickle cell anemia is an autosomal dominant hereditary hemoglobin disorder. When this disease occurs, which of the following changes takes place?
===Choices
Complete prevention of hemoglobin polymerization
Decreased red blood cell flexibility
Incr... | Deoxyhemoglobin aggregation | general_qa | 119 |
The following is a multiple choice question (with answers).
===Question
Galactosemia is a recessive genetic disorder in humans that can be treated by restricting the concentration of lactose and glucose in the diet. Xiaosu and her husband are both carriers of the galactosemia gene. What is the probability that if Xiaos... | 1/64 | general_qa | 141 |
The following is a multiple choice question (with answers).
===Question
In rheumatic endocarditis, what is the main component of warty heart valve cushions?
===Choices
Small Blood Vessels and Rheumatoid Granulomas
Nerve Fibers and Purkinje Cells
Granulation Tissue and Scars
Bacterial Colonies and Inflammatory Cells
Co... | Platelets and Fibers | general_qa | 129 |
The following is a multiple choice question (with answers).
===Question
Let $A=\left( \begin{matrix} {{{0}}} & {{{-1}}} & {{{}}} & {{{4}}} \\ {{{-1}}} & {{{}}} & {{{3}}} & {{{}}} & {{{a}}} \\ {{{4}}} & {{{}}} & {{{a}}} & {{{}}} & {{{0}}} \\ \end{matrix} \right)$ be such that there exists an orthogonal matrix $Q$ for wh... | $$
\left( \begin{matrix} {{-4}} & {{0}} & {{0}} \\ {{0}} & {{2}} & {{0}} \\ {{0}} & {{0}} & {{5}} \\ \end{matrix} \right)
$$ | general_qa | 731 |
The following is a multiple choice question (with answers).
===Question
It is known that the ratio of two sound pressure amplitudes is 2, 5, 10, 100, and the difference of their sound pressure levels is found; If the difference between their sound pressure levels is 1, 3, 6, 10dB, what is the ratio of their sound press... | $$
1. 1 2 2, ~ ~ 1. 4 1 3, ~ ~ 1. 9 9 5, ~ ~ 3. 1 6
$$ | general_qa | 559 |
The following is a multiple choice question (with answers).
===Question
What are the characteristics of prokaryotic cells?
===Choices
Linear DNA sequences
Anaerobic respiration
Nuclear membrane presence
Multinucleated cytoplasm
Achromosomal
Diploid genome structure
Mitochondrial transcription systems
Acellular ribosom... | No post-transcriptional modifications | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
How many moles $NH_{3}$ must be added to $2.0$ litre of $0.80\ M\ AgNO_{3}$ in order to reduce the $Ag^{+}$ concentration to $5\ 10^{-8}M$. $K_{1}$ of $[Ag(NH_{3})-{2}^{+}]=10^{8}$
===Choices
$$0.4$$
$$4$$
$$0.52$$
$$1.6$$
$$1.2$$
$$3.52$$
$$2.8$$... | $$0.4$$ | general_qa | 157 |
The following is a multiple choice question (with answers).
===Question
The significance of death education is ____.
===Choices
Explore the nature of death
Seeking a viable path to heaven
Understanding cultural perspectives on mourning
Discussing the environmental impact of burials
Promoting the importance of funeral ... | Explore the nature of death | general_qa | 103 |
The following is a multiple choice question (with answers).
===Question
When identifying IAA using the wheat germ sheath section method, which of the following precautions is incorrect?
===Choices
The experimental material should have the roots trimmed first.
You need to select uniformly sized wheat seeds, and they mu... | The sections must be rinsed in water before measurement. | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
The Course relation is defined with attributes (course number, course name, credits, offering major number, prerequisite course number) and the Speciality relation is defined with attributes (major number, major name). Therefore, the foreign key of... | Offering major number and prerequisite course number | general_qa | 125 |
The following is a multiple choice question (with answers).
===Question
The Ring Nebula has an angular diameter of 72 arcsec. Given that it is at a distance of $\mathrm{\sim 1500 pc}$ and it is expanding at a velocity of $15\mathrm{km \cdot s}^{-1}$, estimate its age.
===Choices
$$
2. 0 \times1 0^{4} y e a r s
$$
$$
8... | $$
1. 7 \times1 0^{4} y e a r s
$$ | general_qa | 297 |
The following is a multiple choice question (with answers).
===Question
The kinetic energy $T$ of a particle moving along a circle of radius $R$ depends on the distance covered as $T=as^{2}$. The force acting on the particle is:
===Choices
$$\dfrac{2as^{3}}{R^2}$$
$$\dfrac{2as^{2}}{R}$$
$$2as\left ( 1+\dfrac{s}{R^2} \... | $$2as\left ( 1+\dfrac{s^{2}}{R} \right )^{\dfrac{1}{2}}$$ | general_qa | 289 |
The following is a multiple choice question (with answers).
===Question
Mucous, pus, and bloody stool followed by urgency and tenesmus can be seen in which of the following?
===Choices
Irritable Bowel Syndrome
Chronic Ulcerative Colitis
Diverticulitis
Intestinal Tuberculosis
Typhoid fever
Gastroenteritis
Crohn's Disea... | Acute Bacterial Dysentery | general_qa | 103 |
The following is a multiple choice question (with answers).
===Question
A point moves in the $x-y$ plane, with its radius given by $\boldsymbol{r}=2 t^{2} \boldsymbol{i} + \frac{2}{3} t^{3} \boldsymbol{j}$, where $r$ is measured in centimeters and $t$ in seconds. Find the radius of curvature $\rho$ and the velocity $v$... | $$
\rho=1 4. 3 \mathrm{m}, \; \; v=1 1. 3 \mathrm{m} / \mathrm{s}
$$ | general_qa | 500 |
The following is a multiple choice question (with answers).
===Question
What is the primary purpose of an Annual Appropriation?
===Choices
To distribute bonuses and incentives
To ensure compliance with tax regulations
To liquidate existing obligations
To monitor consumer price inflation rates
To finalize end-of-year f... | To cover operations and maintenance expenses | general_qa | 100 |
The following is a multiple choice question (with answers).
===Question
There exists a unique (isomorphic) non Abelian group $G$with an order of 21.
(a) Let $G$ be this group. How many conjugacy classes does $G$ have?
(b) What are the dimensions of the irreducible representations of $G?$
===Choices
(a)three conjugacy ... | (a)five conjugacy sets.\
(b)dimensions 1,1,1,3, and 3. | general_qa | 317 |
The following is a multiple choice question (with answers).
===Question
A 50-year-old female presented with ulcerated firm to hard nodules over the covered pas of her body, along with generalized erythema, edema and extreme pruritis. Initially they were barely palpable erythematous, well defined patches, which later on... | Sezary disease | general_qa | 157 |
The following is a multiple choice question (with answers).
===Question
A 13-year-old boy is brought to the emergency room by his mother for a generalized tonic-clonic seizure that occurred while attending a laser light show. His mother says that he has been otherwise healthy but "he often daydreams". Over the past sev... | Valproate | general_qa | 176 |
The following is a multiple choice question (with answers).
===Question
In Windows, in addition to identifying the window, the title bar on a window can also be used to ().
===Choices
Moving the position of the window
Lock Window Position
Change the size of the window or move the position of the window.
Make the windo... | Moving the position of the window | general_qa | 96 |
The following is a multiple choice question (with answers).
===Question
Sequence $S = x_0, x_1, x_2, x_3, ...$ satisfies that for all $i > 2$ , $x_i = x_{i-3} + x_{i-2}$ (mod $x_{i-1}$ ). If $x_{i-1} = 0$ , the sequence ends. What is the smallest value of $x_2$ such that we can choose values of $x_0$ and $x_1$ that mak... | 9 | general_qa | 184 |
The following is a multiple choice question (with answers).
===Question
The minimum trench bottom width required for the use of an out-of-trench turnaround centerline pick and place is ( ).
===Choices
three times the length of the excavator arm in motion
equal to the reach of the backhoe loader fully extended
equal to... | twice the digging radius of the electric shovel standing level | general_qa | 163 |
The following is a multiple choice question (with answers).
===Question
A patient undergoing chest x-ray following an automobile accident is found to have an enlarged mediastinum with bilateral hilar and right paratracheal adenopathy. The patient has been asymptomatic, but careful examination demonstrates an enlarged c... | Asteroid bodies | general_qa | 138 |
The following is a multiple choice question (with answers).
===Question
What is the result of calculating the determinant $D_{n}=\left| \begin{matrix} {{{x}}} & {{{0}}} & {{{0}}} & {{{\mathrm{L}}}} & {{{0}}} & {{{a_{0}}}} \\ {{{-1}}} & {{{x}}} & {{{0}}} & {{{\mathrm{L}}}} & {{{0}}} & {{{a_{1}}}} \\ {{{0}}} & {{{-1}}} &... | $$x_{n}+a_{n-1} x_{n-1}+\mathrm{L} \ +a_{1} x+a_{0} \ .
$$ | general_qa | 635 |
The following is a multiple choice question (with answers).
===Question
The bony internal posterior border of the TMJ is ( ).
===Choices
Cliff shard division and layer pebble division
Shard plate fissure and flake rock fissure
Spine crest division and break crest division
Bone ridge fracture and shell bone fracture
Ri... | Rock scale fissure and scale drum fissure | general_qa | 125 |
The following is a multiple choice question (with answers).
===Question
Extensive economic growth is also called ().
===Choices
three-dimensional growth
effective output growth
elevated resource growth
expansive income growth
breadth growth
enhanced sector growth
deep growth
extended wealth growth
multi-dimensional gr... | breadth growth | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
In what year did the appointment system of kindergarten teachers begin in China?
===Choices
1999
1996
1998
2001
2000
1992
1994
1995
1997
1993 | 1996 | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is: Square array of Delannoy numbers D(i,j) (i >= 0, j >= 0) read by antidiagonals. Delannoy numbers D(i,j) count the number of paths from (0,0) to (i,j) in a grid where only three types of steps a... | [145, 19, 1, 1, 21, 181, 833, 2241, 3653, 3653] | general_qa | 641 |
The following is a multiple choice question (with answers).
===Question
Calculate the guarantee coefficient k and oxygen deficiency n for a pharmaceutical mixture containing 60% KClO₃ (potassium chlorate), 25% Na₂C₂O₄ (sodium oxalate), and 15% shellac.
===Choices
0.67,-11.4
0.83,-10.8
0.72,-9.5
0.58,-12.3
0.89,-8.2
0.... | 0.67,-11.4 | general_qa | 168 |
The following is a multiple choice question (with answers).
===Question
What phenomenon usually results from surface leakage currents in electrical equipment?
===Choices
complete breakdown
efficiency decline
partial discharge
voltage fluctuation
current interruption
power instability
thermal distortion
electrical malf... | partial discharge | general_qa | 59 |
The following is a multiple choice question (with answers).
===Question
In a benzene solution, using azobisisobutyronitrile to initiate the polymerization of styrene at a concentration of $1 \ \mathrm{mol \cdot L^{-1}}$, the initial rate of initiation was measured to be $4.0 \times 10^{-11} \ \mathrm{mol \cdot L^{-1} \... | $$
5. 3 \times1 0^{-5} \mathrm{~ m o l ~ \cdot~ L^{-1} ~}
$$ | general_qa | 535 |
The following is a multiple choice question (with answers).
===Question
${ K }_{ p }$ for the reaction ${ NH }_{ 4 }I(s)\rightleftharpoons { NH }_{ 3 }(g)+HI(g)$ is $\dfrac{1}{4}$ at a particular temperature . Above equilibrium is established by taking $4$ moles of ${ NH }_{ 4 }$ in $100$ litre container, then moles of... | 3.6 moles | general_qa | 213 |
The following is a multiple choice question (with answers).
===Question
A transverse wave propagating on the string can be described by the equation y = 2 sin (10x + 300t), where x and y are in metres and t in second. If the vibrating string has linear density of 0.6 x $10^{-3}$ g/cm, then the tension in the string is
... | $$5.4 \times 10^{-2} \, \text{N}$$ | general_qa | 202 |
The following is a multiple choice question (with answers).
===Question
The principle we should follow when dealing with the relationship between individuals and the collective, and between individuals and others is ___.
===Choices
Emphasize personal gain before considering collective impact
Prioritize individual inte... | Put the collective first, then the individual; put others first, then yourself | general_qa | 141 |
The following is a multiple choice question (with answers).
===Question
In the study of public finance, which category and the unification of historical categories is considered to be finance?
===Choices
economic category
strategic category
societal category
political category
financial category
cultural category
math... | economic category | general_qa | 77 |
The following is a multiple choice question (with answers).
===Question
Two particles of masses $m_{1}$ and $m_{2}$ are released from rest on a smooth wedge of mass $M$, then
===Choices
if $(m_{1}>m_{2}$, the wedge will accelerate towards right
if $(m_{1}<m_{2}$, the wedge will remain stationary
if $(m_{1}>m_{2}$, the... | if $(m_{1}>m_{2}$, the wedge will accelerate towards right | general_qa | 209 |
The following is a multiple choice question (with answers).
===Question
Speed training primarily results in muscle hypertrophy as evidenced by ( )
===Choices
Increase in fast-twitch fibers
Enlargement of rectangular muscle fibers
Enlargement of pennate muscle fibers
Enlargement of fusiform (spindle-shaped) muscle fibe... | Enlargement of fusiform (spindle-shaped) muscle fibers | general_qa | 119 |
The following is a multiple choice question (with answers).
===Question
Let the probability density function f(x) of the random variable X satisfy f(1+x)=f(1-x), and $$\int_{0}^{2} f \left( x \right) \mathrm{d} x=0. 6$$ then P{X<0}=().
===Choices
0.45
0.4
0.35
0.15
0.3
0.25
0.2
0.5
0.0
0.1 | 0.2 | general_qa | 123 |
The following is a multiple choice question (with answers).
===Question
At what age can clinical symptoms caused by latent hyperopia first appear?
===Choices
25-35 years old
Under 6 years old
40-45 years old
50-55 years old
Ages 6-20
20-30 years old
35-40 years old
30-40 years old
Ages 8-12
Ages 15-25 | Under 6 years old | general_qa | 109 |
The following is a multiple choice question (with answers).
===Question
Which type of lesions has less diagnostic value with MRI than CT?
===Choices
Liver
Pituitary microadenoma
Avascular necrosis of the femoral head
Pancreatic cyst
Pulmonary interstitial lesions
Spinal cord edema
Osteosarcoma
Fat degeneration
Kidney ... | Pulmonary interstitial lesions | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
Consider the following snippet of Java code, what will it output?
for (int i = 1; i <= 5; i++) {
System.out.print(i * i + " ");
}
===Choices
1 4 9 16 25
1 4 9 16 25 36 49 64 81
1 4 9 16
1 2 3 4 5 6 7
1 4 9 16 25 36
1 4 9
1 2 3 4
1 2 3 4 5
2 4 6 8 ... | 1 4 9 16 25 | general_qa | 182 |
The following is a multiple choice question (with answers).
===Question
How do you rank the difficulty of processing gibbsite, boehmite and diaspore?
===Choices
boehmite > diaspore > gibbsite
boehmite > gibbsite > diaspore
boehmite > gibbsite > gibbsite
gibbsite > boehmite > diaspore
gibbsite > diaspore > boehmite
dia... | gibbsite > boehmite > diaspore | general_qa | 115 |
The following is a multiple choice question (with answers).
===Question
Classification is vital to library services. All of the following statements about Classification in a Library are correct
I. Classification in libraries is crucial for organizing services, similar to a skeleton's role in the body.
II. It helps gro... | I) IV) VI) VIII) IX) | general_qa | 300 |
The following is a multiple choice question (with answers).
===Question
Where was the first British newspaper printed?
===Choices
Birmingham
Cambridge
Edinburgh
York
Bristol
Leeds
London
Manchester
Oxford
Liverpool | Oxford | general_qa | 50 |
The following is a multiple choice question (with answers).
===Question
From the perspective of the industrial development life cycle, we can regard pillar industries as being in _____.
===Choices
Industries in the mature period
Industries in the embryonic period
Industries in the expansion period
Industries in the co... | Industries in the mature period | general_qa | 118 |
The following is a multiple choice question (with answers).
===Question
The correct description of copper matte is ().
===Choices
Copper matte is composed solely of FeS and sulfur.
Copper matte is mainly a mixture of Cu2O and FeS.
Copper matte is free of sulfide minerals entirely.
Copper matte is a eutectic consisting... | Copper matte is a eutectic consisting mainly of Cu2S-FeS | general_qa | 149 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the result of dropping the final digit of n in its decimal representation. Each a(n) is an integer formed by removing the last digit from n. Given the input x_list (a series of values): [93, 94,... | [9, 9, 9, 9, 9, 9, 9, 10, 10, 10] | general_qa | 450 |
The following is a multiple choice question (with answers).
===Question
A particle moves in a circle of radius $20 \mathrm { cm }$ .Its linear speed is given by $v = 2 t$ where $t$ is in $s$ and $v$ in$\mathrm { m } /s$. Then
A) the radial acceleration at $t = 2 s \text { is } 80 m s ^ { - 2 }$
B) tangential accelera... | only a,c, d are correct | general_qa | 252 |
The following is a multiple choice question (with answers).
===Question
() is commonly known as "artificial cotton". () is commonly known as "synthetic wool". () is commonly known as "synthetic cotton".
===Choices
Cotton-type viscose, acrylic, and rayon
Vinylon, cotton-type viscose, and acrylic fiber
Vinylon, acrylic,... | Cotton-type viscose, acrylic, and rayon | general_qa | 167 |
The following is a multiple choice question (with answers).
===Question
When the computer provides both tube and eye mode, _____ must be executed in tube mode.
===Choices
Jump Instruction
Floating Point Arithmetic Instructions
Conditional Branch Instruction
Input/Output Instructions
Arithmetic Operation Instructions
D... | Input/Output Instructions | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
A container has a hole at a height of $2m$ If the time taken by the efflux to strike the inclined plane perpendicularly is $1$sec. Then the height of liquid level initially is (Take $g=10m/s^2$).
===Choices
$3$m
$8$m
$5$m
$7$m
4m
$2$m
$6$m | $5$m | general_qa | 99 |
The following is a multiple choice question (with answers).
===Question
Who designed the Wilkinson power divider?
===Choices
Ernest J. Wilkens
Ernest W. Wilkinson
Ernest J. Wilkins
Ernest J. Wilkinson
Ernest J. Wilkerson
Ernest J. Wilkenson
Ernest J. Wilkin
Ernest J. Wilken
Ernest W. Wilkins
Ernest W. Wilkerson | Ernest J. Wilkinson | general_qa | 95 |
The following is a multiple choice question (with answers).
===Question
When did BAe and the American aircraft manufacturer McDonnell Douglas sign a memorandum of understanding regarding the McDonnell Douglas AV-8B Harrier II? Example answer: mm-yyyy
===Choices
08-1985
08-1980
08-1988
08-1982
08-1981
08-1983
08-1984
0... | 08-1981 | general_qa | 132 |
The following is a multiple choice question (with answers).
===Question
Who gifted "Charing Cross Bridge" by Claude Monet to Churchill after WWII?
===Choices
Emery Reves, an American art collector and historian and friend of Churchill
Emery Reeves
Emery Reves, a British art historian and friend of Churchill
Emery Reve... | Emery Reeves | general_qa | 154 |
The following is a multiple choice question (with answers).
===Question
Speed of a particle moving on a circular path of radius 2 m is varying with time as $ v = 2t^2 m/s $. Net acceleration of the particle at $ t = 2 s $ is
===Choices
$$4 \sqrt 2 m/s^2$$
$$2 \sqrt 10 m/s^2$$
$$ 2 \sqrt 3 m/s^2 $$
$$ 4 \sqrt 3 m/s^2 $... | $$ 4 \sqrt 3 m/s^2 $$ | general_qa | 184 |
The following is a multiple choice question (with answers).
===Question
In which month and year did the Washington Post (an American daily newspaper) hire Rana Ayyub (an Indian journalist) as its contributing writer to the Global Opinions section?
===Choices
December 2019
February 2020
October 2019
July 2019
November ... | September 2019 | general_qa | 123 |
The following is a multiple choice question (with answers).
===Question
Under Chinese law,guo accidentally died, and his wife, Jia, was two months pregnant. Guo's father, Yi, signed an agreement with Jia: 'If the child is born successfully, I will give ten gold bars to the child.' On that day, Yi gave Jia eight gold ba... | The child is born, so Yi cannot refuse the gift. | general_qa | 275 |
The following is a multiple choice question (with answers).
===Question
The transfer function of the system is \(g(s)=\dfrac{s^2+3s+2}{s(s^2+7s+12)}\). Perform partial fraction decomposition on it, and the result is
===Choices
\(\dfrac{2/3}{s+3}+\dfrac{3/2}{s+4}\)
\dfrac{1/6}{s}+\dfrac{2/3}{s+3}-\dfrac{3/2}{s-4}
\(\df... | \(\dfrac{1/6}{s}-\dfrac{2/3}{s+3}+\dfrac{3/2}{s+4}\) | general_qa | 409 |
The following is a multiple choice question (with answers).
===Question
The first cause of postpartum hemorrhage to consider removing the uterus to stop the bleeding is____.
===Choices
acute umbilical prolapse
major endometrial infection
extensive vaginal tears
aggressive placenta praevia
chronic placental abruption
i... | aggressive placenta praevia | general_qa | 104 |
The following is a multiple choice question (with answers).
===Question
In an experiment to determine the vitamin C content of a sample using 2,6-dichlorophenol indophenol, the end point of the titration is when the sample is ___by titration with a ___ 2,6_-dichlorophenol indophenol solution.
===Choices
Black, red
Whi... | Roses, none | general_qa | 123 |
The following is a multiple choice question (with answers).
===Question
When the flume is long, it should be constructed in sections, with each section not exceeding _____.
===Choices
14m
10m
18m
8m
15m
11m
16m
20m
12m
9m | 10m | general_qa | 75 |
The following is a multiple choice question (with answers).
===Question
Solve the exponential equation exactly: $3^{\frac{ x }{ 14 }} = \frac{ 1 }{ 10 }$
===Choices
-14 / (log10(3) * 2)
-14 / log3(10)
-14 / (log10(3) * 0.5)
-14 / (log10(3) + 1)
-14 / (log10(3) * 1.5)
-14 / (log10(3) - 1)
-14 / (log10(3) * 1.2)
-14 / (... | -14 / log10(3) | general_qa | 196 |
The following is a multiple choice question (with answers).
===Question
The slag alkalinity control value for ordinary steelmaking pig iron produced in blast furnace is ___.
===Choices
below 0.5
just over 2.8
around 1.0
over 3.0
approximately 1.5
roughly 0.8
close to 2.0
nearly 3.5
almost 0.3
nearly 2.5 | around 1.0 | general_qa | 100 |
The following is a multiple choice question (with answers).
===Question
In a public key system, the cipher text received is $\mathrm{C}=10$ if RSA encryption is used with a public key $\mathrm{e}= 1 1, n=7 7 )$ to deduce the plain text. Determine the value of $\phi( n )$?
===Choices
52
75
70
123
65
49
60
58
68
56 | 60 | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements about the necessary conditions for producing wheel peripheral traction is correct? (Choose the option that includes all the correct statements)
I. The locomotive driving wheels receive torque transmitted from the p... | I, II, III, IV, V | general_qa | 174 |
The following is a multiple choice question (with answers).
===Question
The left type Robertshaw double lumen is ().
===Choices
Double lumen tube with protruding hook
Double-lumen catheter inserted into the left superior artery in the anterior segment
Double-lumen tube positioning in the left inferior bronchus in the ... | Double-lumen catheter entering the left common bronchus in the anterior segment | general_qa | 171 |
The following is a multiple choice question (with answers).
===Question
Electric field in the region is given as $E=(10-5x)\hat i$. A charge of the mass 5 kg and charge Q (=1 C) is situated at origin and free to move in given electric field, then choose the correct option (neglect gravity).
===Choices
motion of charge... | the position of charge particle, when velocity gained by particle is maximum is 2 SI units | general_qa | 249 |
The following is a multiple choice question (with answers).
===Question
In which work did Mao Zedong propose that "the establishment and development of the Red Army, guerrillas, and red regions are the highest form of peasant struggle under the leadership of the proletariat in semi-colonial China?"
===Choices
Why Can ... | A Spark Can Start a Prairie Fire | general_qa | 176 |
The following is a multiple choice question (with answers).
===Question
What are the characteristics of the prestomium?
===Choices
The prestomium is covered in dense, hair-like structures.
The prestomium shows prominent segmentation and muscle tissue.
The prestomium does not have bristles or papillae.
The prestomium s... | The prestomium does not have bristles or papillae. | general_qa | 150 |
The following is a multiple choice question (with answers).
===Question
The average heat absorption temperature of piston internal combustion engine is quite high, is it because the average heat release temperature is too high?
===Choices
It's improbable because the average heat release temperature is too low
It's que... | It's not because the average heat release temperature is too high | general_qa | 168 |
The following is a multiple choice question (with answers).
===Question
The cells that belong to innate immune responses are ().
===Choices
T lymphocytes
Epithelial cells
Phagocyte
B lymphocytes
Immune system cells
Red blood cells
Neurons
NK cells | NK cells | general_qa | 59 |
The following is a multiple choice question (with answers).
===Question
Where on the ridge of the pennate diatom can one observe which surface?
===Choices
Annular surface
Ridge crest margin
Interior ridge section
Apex ridge boundary
Outer edge contour
Upper shell surface
Bottom shell surface
Side view
Lower shell surf... | Upper shell surface | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
Who was the first economist to advocate the use of empirical research methods in the study of political economy?
===Choices
Robert Brown
Henry Sanders
Philip Jackson
Smith
Ludwig Feuerbach
Jean-Baptiste Say
John Muller
Friedman
Alexander Tesla
Cha... | Jean-Baptiste Say | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
An open pipe of sufficient length is dipping in water with a speed $v$ vertically. If at any instant $l$ is length of tube above water. Then the rate at which fundamental frequency of pipe changes, is (speed of sound $= c)$.
===Choices
$$c/ 4v^{2}... | $$cv/ 4l^{2}$$ | general_qa | 168 |
The following is a multiple choice question (with answers).
===Question
In which year did the Lexical Markup Framework (LMF) officially become an international standard?
===Choices
2006
2004
2005
2003
2011
2007
2002
2010
2008
2009 | 2008 | general_qa | 85 |
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