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
The cell $\mathrm{Zn} \mid \mathrm{ZnCl}_{2} \left( m \right), \, \mathrm{Hg}_{2} \mathrm{Cl}_{2} (\text{solid}) \mid \mathrm{Hg}$ at 25°C: (a) When $m = 0.25148$ mol/kg, the electromotive force $E = 1.10085 \, \mathbf{V}$. (b) When $m = 0.0050$ mo... | $$
\frac{\gamma_{\pm, a}} {\gamma_{\pm, b}}=0. 4 9
$$ | general_qa | 484 |
The following is a multiple choice question (with answers).
===Question
In cereal crops like rice and wheat, the tissues utilized by humans are primarily_________. In contrast, fiber crops such as ramie utilize _______.
===Choices
Vascular tissues; photosynthetic tissues.
Xylem tissues; phloem tissues.
Storage tissues... | Parenchyma tissues; mechanical tissues. | general_qa | 143 |
The following is a multiple choice question (with answers).
===Question
Human daily thinking and actions, even the most minor, involve conscious initiative and a certain degree of creativity, whereas all behaviors of a computer are controlled by pre-programmed instructions. Therefore, a computer cannot possess the init... | Computer programs cannot simulate human initiative and creativity. | general_qa | 216 |
The following is a multiple choice question (with answers).
===Question
Use a micro-injection pump to inject nitroglycerin into the patient, the input amount of nitroglycerin is 10μg/min,5mg of nitroglycerin is added to the liquid to 50mL, then the input amount of liquid per hour should be ().
===Choices
7.0 mL/h
7.0 ... | 6.0mL/h | general_qa | 140 |
The following is a multiple choice question (with answers).
===Question
In a vector space $F_{n} [ x ]$ , define a linear transformation $\tau$ as: for any $\tau( f ( x ) )=x f^{\prime} ( x )-f ( x )$ , where $f^{\prime} ( x )$ represents the derivative of $f ( x )$ . What are $\mathrm{K e r} \tau$ and $\mathrm{I m} \t... | $$
\mathrm{K e r} \, \tau\!=\! L ( x ), \, \mathrm{I m} \, \tau\!=\! L ( 1, \, \, x^{2} \,, \, \, \, \cdots\, \,, x^{n} )
$$ | general_qa | 853 |
The following is a multiple choice question (with answers).
===Question
First overtone frequency of a closed organ pipe is equal to the first overtone frequency of an open organ pipe. Further nth harmonic of closed organ pipe is also equal to the mth harmonic of open pipe, where n and m are :
===Choices
8, 6
7, 4
5, 4... | 9, 6 | general_qa | 114 |
The following is a multiple choice question (with answers).
===Question
Solve the integral:
$$
\int -16 \cdot \sin(-3 \cdot x)^4 \cdot \cos(-3 \cdot x)^2 \, dx
$$
===Choices
-x + \frac{\sin(12 \cdot x)}{12} + \frac{\sin(6 \cdot x)}{12} - \frac{\sin(18 \cdot x)}{72} + C
-x + \frac{\sin(12 \cdot x)}{12} + \frac{\sin(6 \... | -x + \frac{\sin(12 \cdot x)}{12} + \frac{\sin(6 \cdot x)}{12} - \frac{\sin(18 \cdot x)}{36} + C | general_qa | 566 |
The following is a multiple choice question (with answers).
===Question
A concave mirror has the form of a hemisphere of radius $ R = 20\,cm $ . A thin layer of an unknown transparent liquid is poured into this mirror and it was found that the given optical system with the source in a certain position produces two rea... | $$ \dfrac{4}{3} $$ | general_qa | 194 |
The following is a multiple choice question (with answers).
===Question
What should be used for the treatment of dysbiosis?
===Choices
Antitoxin
Vitamins
Toxoid
Probiotic Yogurt
Fungal Medication
Balanced Diet
Antibiotics
Ecological Formulation
Herbal Supplements
Synthetic Drugs | Ecological Formulation | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
Most common neurological finding in whipple's disease
===Choices
Quadriplegia
Dementia
Cognitive decline
Cerebellar ataxia
Peripheral neuropathy
Vestibulocerebellar ataxia
Cerebral ataxia
Convulsions
Vestibular ataxia
Impaired coordination and bal... | Cerebellar ataxia | general_qa | 87 |
The following is a multiple choice question (with answers).
===Question
The first radio commercial appeared on station _____________ in 1922.
===Choices
WXYZ
WHAM
WLS
KDKA
WJZ
WEAF
WBAL
WNBC
WTOP
WGN | WEAF | general_qa | 64 |
The following is a multiple choice question (with answers).
===Question
A basket and its contents have mass $M$. A monkey of mass $2M$ grabs the other end of the rope and very quickly (almost instantaneously) acceleration by pulling hard on the rope until he is moving with a constant speed of ${v}_{m/r}=2ft/s$ measured... | $${v}_{basket}=96ft/s$$ | general_qa | 268 |
The following is a multiple choice question (with answers).
===Question
What are the criteria for polyuria, oliguria, and anuria, respectively (ml/24h)?
===Choices
>3000 ml, <400 ml, <17 ml
>2500 ml, <100 ml, <50 ml
>3000 ml, <500 ml, <50 ml
>2500 ml, <500 ml, anuria
>2500 ml, <400 ml, <100 ml
>2500 ml, <500 ml, <17 m... | >2500 ml, <400 ml, <100 ml | general_qa | 223 |
The following is a multiple choice question (with answers).
===Question
A 45 yr old female complains of progressive lower limb weakness, spasticity, urinary hesitancy. MRI shows intradural enhancing mass lesion. MOST likely diagnosis is:
===Choices
Schwannoma
Dermoid cyst
Intradural hematoma
Meningioma
Ependymoma
Intr... | Meningioma | general_qa | 111 |
The following is a multiple choice question (with answers).
===Question
In the absence of information, the effective volume of the clean water tank in urban water plants can generally be calculated based on the maximum daily design water volume of the water plant?
===Choices
10%~25%
7%~17%
5%~15%
20%~30%
15%~30%
12%~2... | 10%~20% | general_qa | 117 |
The following is a multiple choice question (with answers).
===Question
What proteins are associated with the dehydration process during the late stage of seed development?
===Choices
Heat Shock Protein
GTP-binding protein
ABA Binding Protein
Endosperm Storage Protein
Late-stage embryonic development enriched proteins... | ABA Binding Protein | general_qa | 86 |
The following is a multiple choice question (with answers).
===Question
The best main prescription for vomiting due to liver qi invading the stomach is ( )
===Choices
Baohewan
Lizhong Wan
Xiao Chaihu Tang combined with Siqi Tang
Siqi Tang
Xiao Chaihu Tang
Siqi Tang combined with Xiao Banxia Tang
Xiao Banxia Tang combi... | Siqi Tang | general_qa | 121 |
The following is a multiple choice question (with answers).
===Question
Contraceptive LNG-IUD (levonorgesterel intrauterine device) has the cumulative pregnancy rate at 5 years of:
===Choices
2
1
0.4
1.5
0.6
0.5
0.8
0.45
0.3
0.7 | 0.5 | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
______ refer to the presence of individuals from other varieties mixed in with the original variety.
===Choices
Local types
Original forms
Domestic breeds
Pure strains
Pure varieties
Hybrid varieties
Combined species
Natural species
Wild groups
Mi... | Hybrid varieties | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
Diameter of the helium-neon laser discharge tube $\mathbf{d=0.5 \, \text{mm}}$, length $l=10 \, \text{cm}$; the reflectivity of the two mirrors is 100% and 98% respectively, neglecting other losses, with a steady-state power output of $0.5 \, \text... | $$
5.3 \times 10^{7} units
$$ | general_qa | 315 |
The following is a multiple choice question (with answers).
===Question
The first feature film in New China was( ).
===Choices
The Eastern Gate
The Ancient Town
The Bridge
The White Haired Girl
The Yellow River
The Spring Dawn
The Great Wall
Chinese Daughter
The Mountain Road
The Red Star | The Bridge | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
If a sample is biased due to intentional manipulation by a person, this type of error belongs to ().
===Choices
Data collection error
Experimental Error
Design error
Computational error
Instrumental error
Non-sampling error
Sampling error
Measurem... | Non-sampling error | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
A particular plot consists of a mixed stand of Chinese fir and Masson pine. The total volume of the plot is 1,000 cubic meters, with 600 cubic meters of Chinese fir and 400 cubic meters of Masson pine. The composition of the tree species is ().
==... | 6 Cedar 4 Horse | general_qa | 139 |
The following is a multiple choice question (with answers).
===Question
Which organization commissioned "Pinturas de Tamayo" (the composition by Steven Stucky)?
===Choices
New York Philharmonic
San Francisco Symphony
Pittsburgh Symphony Orchestra
Boston Symphony Orchestra
Philadelphia Orchestra
Los Angeles Philharmoni... | Chicago Symphony Orchestra | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
Let the function be continuous on the closed interval , and , then which of the following statements is correct?
===Choices
There is at least one point in the open interval such that
There is only one point in the closed interval such that
There i... | There is at least one point in the open interval such that | general_qa | 188 |
The following is a multiple choice question (with answers).
===Question
Which of the following films frequently 'quotes' classical music segments and effectively captures the main theme?
===Choices
The Artist
Love Actually
In the Mood for Love
Up
American Dreams
Midnight in Paris
The Secret Life of Walter Mitty
Once
A... | In the Mood for Love | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
The central link in the development of primary hypertension due to hereditary renal dysfunction is
===Choices
increased renal potassium excretion tendency
increased renal potassium retention tendency
increased renal calcium retention tendency
incr... | increased renal sodium retention tendency | general_qa | 116 |
The following is a multiple choice question (with answers).
===Question
In order to raise a mass of 100 kg a man of mass 60 kg fastens a rope to it and passes the rope over a smooth pulley. He climbs the rope with an acceleration 59/ 4 relative to the rope. The tension in the rope is $ \left( \mathrm { g } = 10 \mathrm... | 1432 N | general_qa | 167 |
The following is a multiple choice question (with answers).
===Question
When determining the release degree of slow and controlled release preparations, what is the controlled release amount below the first sampling point?
===Choices
5%
50%
45%
35%
15%
10%
40%
20%
30%
25% | 30% | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
In the phase diagram of a partially miscible ternary system, if a straight line BD is drawn from any vertex B to its opposite side, which of the following statements about the compositions represented by the points on the BD line is correct?
===Ch... | The ratio of the contents of components A and C remains unchanged. | general_qa | 203 |
The following is a multiple choice question (with answers).
===Question
What conditions must be met if an increase in the money supply causes the LM curve to shift to the right, in order to balance income changes close to the movement of the LM curve?
===Choices
The LM curve is steep, and the IS curve is also steep.
T... | The LM curve is gentle, while the IS curve is steep | general_qa | 183 |
The following is a multiple choice question (with answers).
===Question
The macro expression to determine whether the value of the "Inventory Quantity" control in the "Product" form is less than 5 is ().
===Choices
[Forms].[Products].[Inventory Quantity<5]
[Forms]![Product]![Inventory_Quantity]<5
[Forms]![Product]![In... | [Forms]![Product]![Inventory Quantity]<5 | general_qa | 137 |
The following is a multiple choice question (with answers).
===Question
A silicon sample with a conductivity of $0.001 / ( \Omega \cdot \mathrm{cm} )$ has a Hall voltage of zero under a weak magnetic field. Assuming that the Hall factors for electrons [ $\mu_{\mathrm{n}}=1300 \mathrm{cm}^{2} / (\mathrm{V} \cdot \mathrm... | $$
1. 6 9 \times1 0^{1 3} ( 1 / \mathrm{c m}^{3} )
$$ | general_qa | 479 |
The following is a multiple choice question (with answers).
===Question
After strain hardening of a resilient material, upon unloading and then reloading, which of the following changes occur in the mechanical properties of the material?
===Choices
The proportional limit is unchanged, and the strength becomes greater.... | The proportional limit is increased, and the toughness decreases. | general_qa | 171 |
The following is a multiple choice question (with answers).
===Question
A metal ball immersed in water weighs ${ w }_{ 1 }$ at 5 ${ \circ }_{ C }$ and ${ W }_{ 2 }$ at ${ 50 }^{ \circ }$. The coefficient of cubical expansion of metal is less than that of water. Then
===Choices
${ w }_{ 1 }$ < ${ w }_{ 2 }$
${ w }_{... | ${ w }_{ 1 }$ < ${ w }_{ 2 }$ | general_qa | 191 |
The following is a multiple choice question (with answers).
===Question
A sample of $U^{238} ((half\!-\! life = 4.5\times 10^9 \: yr)$ ore is found to contain 23.8 g of $U^{238}$ and 20.6 g of $Pb^{206}$. The age of the ore is :
===Choices
$$4.00 \times 10^9 \:year$$
$$3.5\times 10^9 \:year$$
$$5.50 \times 10^9 \:year... | $$4.5\times 10^9 \:year$$ | general_qa | 247 |
The following is a multiple choice question (with answers).
===Question
In which year was *Racosperma drummondii* transferred back to the genus *Acacia*?
===Choices
2003
2010
2002
2006
2008
2007
2009
2004
2001
2005 | 2006 | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
Who is the author of the work 'Sayonara Goodbye', which criticizes the Taiwanese society's worship of foreign cultures?
===Choices
Bai Xianyong
Chen Ruoxi
Wang Zhenhe
Chen Yingzhen
Huang Chunming | Huang Chunming | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
The epidermal cells of the medicinal herb's leaves are green-yellow or yellow-brown, slightly rectangular, _______.
===Choices
The surface has extremely fine diagonal crisscrossed net-like patterns.
Multi-layered overlaps, the surface appears poly... | No intercellular spaces, wall exhibits wavy or beaded thickening | general_qa | 172 |
The following is a multiple choice question (with answers).
===Question
Increased willpower is commonly observed in which of the following?
===Choices
Major depressive disorder;Seasonal affective disorder
Borderline personality disorder;Psychotic depression
Social phobia;Acute stress reaction
Paranoid schizophrenia;Ma... | Paranoid schizophrenia;Manic episodes | general_qa | 121 |
The following is a multiple choice question (with answers).
===Question
What is the total control of drug quality?
===Choices
System and adaptation of procedures and regulations controlling drug experiments, assembly, distribution, clinical usage, and related sciences
System and integration of procedures and guideline... | System and implementation of norms and regulations governing pharmaceutical research, production, supply, clinical use and related technologies | general_qa | 245 |
The following is a multiple choice question (with answers).
===Question
A bar magnet has pole strength of 15 Am and magnetic length 1 cm. What is the magnetic induction produced by it at a distance of 50 cm from either poles?
$$\left(\dfrac{\mu_0}{4\pi} = 10^{-7} ~Wb/Am \right)$$
===Choices
$$1.2 \times 10^{-8} \dfra... | $$0.12 \times 10^{-6} \dfrac{Wb}{m^2}$$ | general_qa | 333 |
The following is a multiple choice question (with answers).
===Question
A shaft 100 mm diameter (D) runs in a bearing 200 mm long (L). The two surfaces are separated by an oil film 2.5 mm thick (c). Take the oil viscosity (μ) as 0.25 kg/ms. If the shaft rotates at a speed of (N) revolutions per minute.Calculate the tor... | 0.987Nm | general_qa | 176 |
The following is a multiple choice question (with answers).
===Question
Ice crystallises in a hexagonal lattice. At low temperature at which the structure was determined, the lattice constant are : $a$ = $4.53$ $\overset { o }{ A } $, and c (height) = $7.41\overset { o }{ A } $. How many $H_2O$ molecules are contained ... | 1 | general_qa | 140 |
The following is a multiple choice question (with answers).
===Question
The slopes of the windscreen of two cars are $lpha_1=30^o$ and $lpha_2=15^o$ respectively. At what ratio $\dfrac {v_1}{v_2}$ of the velocities of the cars will their drivers see the hailstones bounced back by the windscreen on their cars in the v... | $$3$$ | general_qa | 185 |
The following is a multiple choice question (with answers).
===Question
In a seismic zone with an intensity of $8$, sand needs to be compacted to a relative density $D_{r}=0.7$ or higher. Tests show that the maximum dry density of sand from a certain site is $\rho_{\mathrm{dmax}}=1.96 \mathrm{g/cm}^{3}$ and the minimum... | $$
1. 7 8 \mathrm{g / c m}^{3}
$$ | general_qa | 359 |
The following is a multiple choice question (with answers).
===Question
The types of mineral sampling mainly include what?
===Choices
directional sampling, horizontal sampling, pattern sampling, isolated sampling, and strategic sampling, etc.
detailed sampling, selective sampling, representative sampling, continuous s... | chemical sampling, mineral sampling (or rock and mineral identification sampling), physical sampling (or technical sampling), process sampling (also known as processing technology sampling) | general_qa | 232 |
The following is a multiple choice question (with answers).
===Question
A solid conducting sphere of radius a having a charge $q$ is surrounded by a concentric conducting spherical shell of inner radius $2a$ and outer radius $3a$ as shown in figure. Find the amount of heat produced when switch is closed
$$\left( \displ... | $$\displaystyle K = \frac{kq^2}{4a}$$ | general_qa | 263 |
The following is a multiple choice question (with answers).
===Question
Simplify the expression $\frac{ \cos(t) }{ \sin(t) }+\frac{ \sin(t) }{ 1+\cos(t) }$ by writing it in terms of sines and cosines, then simplify. The final answer does not have to be in terms of sine and cosine only.
===Choices
sec(t) + tan(t)
sec(t... | csc(t) | general_qa | 161 |
The following is a multiple choice question (with answers).
===Question
Which of the following facilities can be used for both draining groundwater and surface water?
===Choices
Channel
Water barrier
Seepage pit
Drainage ditch
Aqueduct
Retention pond
Inspection well
Flood gate
Spillway
Irrigation trench | Drainage ditch | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
The characteristic pain of appendicitis is ________.
===Choices
intermittent pain in the middle abdomen
throbbing pain in the lower right abdomen
sharp pain in the lower left abdomen
radiating pain in the lower back region
dull pain in the upper r... | migratory pain in the lower right abdomen | general_qa | 117 |
The following is a multiple choice question (with answers).
===Question
Consider the discrete memoryless channel $Y=XZ$ where $X$ and $Z$ are independent binary random variables that take on values 0 and 1. Let $P(Z=1)=0.5$. Find the capacity of this channel in bits.
===Choices
1.000
0.100
1.322
0.250
0.700
0.322
0.75... | 0.322 | general_qa | 130 |
The following is a multiple choice question (with answers).
===Question
If the proton decay occurs through an intermediate boson with a mass of $M_{X}=3 \times 10^{14} \mathrm{~GeV}$, and assuming its coupling constant is the usual weak coupling constant, try to estimate the lifetime of the proton based on the muon's m... | $$
2. 4 \times10^{32} \text{ years}
$$ | general_qa | 314 |
The following is a multiple choice question (with answers).
===Question
A current source sends a current $I - i_0\cos(\omega t)$. when connected across an unknown load, it gives a voltage output of $v = v_0\sin[\omega t + (\pi/4)]$ across that load. then the voltage across the current source may be brought in phase wit... | Connecting an inductor in series with the load | general_qa | 186 |
The following is a multiple choice question (with answers).
===Question
In a certain leaf filter press operating under constant pressure, 4L of filtrate is obtained in the first 10 minutes, and 2L is obtained in the second 10 minutes. Calculate: How many liters of filtrate are obtained in the third 10 minutes?
===Choi... | 1.54L | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
H Company's net profit is $66, total assets are $500, and $44 of the $66 net profit is retained. Then its internal growth rate is ( ).
===Choices
13.2%
8.8%
6.5%
14.1%
7.9%
11.3%
9.65%
10.7%
12.5%
66.67% | 9.65% | general_qa | 105 |
The following is a multiple choice question (with answers).
===Question
What are the main categories of building types on a macro level?
===Choices
5
4
1
10
6
8
3
9
2
7 | 3 | general_qa | 50 |
The following is a multiple choice question (with answers).
===Question
A resistor Rf is connected between the two input terminals of an ideal operational amplifier, and this resistor is connected to the output terminal of the operational amplifier. This circuit is called ().
===Choices
Differential amplifier
Invertin... | Inverting amplifier | general_qa | 92 |
The following is a multiple choice question (with answers).
===Question
The age at which MAI curve culminates indicate ().
===Choices
Climax of tree growth rate
Rotation of lowest timber quality
Rotation of highest income
Silvicultural rotation
Rotation of maximum volume production
Peak carbon sequestration age
Thresh... | Rotation of maximum volume production | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
The surface temperature of a 3 ft square panel is maintained at200°F. Calculate the heat lost by the panel (a)whenattached to the ceiling, facing downwards in a room at80°F, and (b)whenattached to the floor, facing upwards in the same room. The con... | 197.7 Btu/hr.ft.^2 and 300.5 Btu/hr.ft^2 | general_qa | 352 |
The following is a multiple choice question (with answers).
===Question
For which type of dementia is the Huan Shao Pill used?
===Choices
Phlegm and stagnant blood blocking
Deficiency of both heart and liver
Deficiency of both spleen and liver
Stagnant blood obstructing internally
Deficiency of both liver and kidney
D... | Deficiency of both spleen and kidney | general_qa | 118 |
The following is a multiple choice question (with answers).
===Question
Which of the following clinical scenarios should be considered an endangered patient?
===Choices
Tracheal Intubation, Acute Impaired Consciousness, No Breathing Pulse
Oxygen Supplementation, Chronic Anxiety Disorder, Irregular Heartbeat
Dental Ext... | Tracheal Intubation, Acute Impaired Consciousness, No Breathing Pulse | general_qa | 194 |
The following is a multiple choice question (with answers).
===Question
A wind turbine has four blades, and the angle between each blade and the vertical plane of the rotation axis is $\alpha = 15^{\circ} = \operatorname{arcsin} \ 0.259$. The wind pressure acts along the normal lines of each blade's surface, and the re... | $$
3 1. 1 ~ \mathrm{k N} \cdot\mathrm{m}
$$ | general_qa | 345 |
The following is a multiple choice question (with answers).
===Question
In basketball, using the left foot as the pivot foot, what should the crossover step dribble penetration be like?
===Choices
Jump forward using the pivot foot
Keep the ball in one hand before lifting pivot foot
Release the ball with one hand, then... | Dribble first, then lift the pivot foot. | general_qa | 142 |
The following is a multiple choice question (with answers).
===Question
Two blocks A and B of masses m and 2m respectively placed on a smooth floor are connected by a spring. A third body C of mass m moves with velocity $v_0$ along the line joining A and B and collides elastically with
===Choices
the common velocity o... | the common velocity of A and B at time t$_0$ is v/3. | general_qa | 260 |
The following is a multiple choice question (with answers).
===Question
When did the famous Chinese composer Jianzhong Wang pass away?
===Choices
2019
2018
2013
2017
2010
2015
2016
2012
2011
2014 | 2016 | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
Air at atmospheric pressure and 303K flows over a flat surface with a uniform velocity of 20 m/s, with a width of $1 \; \mathrm{m}$ and a length of 2 m. The surface temperature is maintained at 373K. Calculate the rate of heat exchange between the ... | $$
= 5 8 8 0 \mathrm{W}
$$ | general_qa | 292 |
The following is a multiple choice question (with answers).
===Question
Let $R_{1} \! \in\! {\mathcal{F}} \left( \ U \times V \right)$, $R_{2} \! \in\! {\mathcal{F}} \left( \ V \times W \right)$, and $U, V, W$ are all real number domains.
$$
R_{1} \left( \, u, v \, \right) = \mathrm{e}^{-k \left( u - v \right)^{2}} \,,... | $$
(R_{1}\circ R_{2})(u,w)=\mathrm{e}^{-k\left(\frac{u-w}{2}\right)^{2}}
$$ | general_qa | 548 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements about units of angle measurement are correct?
===Choices
Degrees are primarily used in mathematical computations.
In measurement, radians are generally not directly used as angle units.
Radians are the least accur... | In measurement, radians are generally not directly used as angle units. | general_qa | 118 |
The following is a multiple choice question (with answers).
===Question
Since reform and opening up, the main reason of decrease in carbon intensity in China is ( ).
===Choices
the decrease in carbon intensity of energy
the reduction in industrial activity
the slowdown in economic growth
the optimization of energy mix... | the increase in energy productivity | general_qa | 100 |
The following is a multiple choice question (with answers).
===Question
When $a$ takes what value, the following system of linear equations has infinitely many solutions?
$$ \left\{\begin{matrix} {{a x_{1}+x_{2}+x_{3}=1}} \\ {{x_{1}+a x_{2}+x_{3}=a}} \\ {{x_{1}+x_{2}+a x_{3}=a^{2}}} \\ \end{matrix} \right. $$
===Choic... | $$
a=1
$$ | general_qa | 193 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the number of distinct bracelets (also known as turnover necklaces) that can be formed using n beads, of which exactly 5 are black, and the rest are of another color. Given the input x_list (a s... | [6681, 7467, 8311, 9234, 10222, 11298, 12446, 13691, 15015, 16445] | general_qa | 786 |
The following is a multiple choice question (with answers).
===Question
A hydrometer has a stem of diameter $D$ and a weight $W$ Find the distance on the stem $h$ between markings corresponding to relative densities of 1.0 and $S$ .
===Choices
$$
\frac{W}{\gamma\left(\pi D^{3}\right)}\left(\frac{1}{S}+1\right)
$$
$$
\... | $$
\frac{W} {\gamma\left( \pi D^{2} / 4 \right)} \left( \frac{1} {S}-1 \right)
$$ | general_qa | 412 |
The following is a multiple choice question (with answers).
===Question
Shanille O'Keal shoots free throws on a basketball court. She hits the first and misses the second, and thereafter the probability that she hits the next shot is equal to the proportion of shots she has hit so far. What is the probability she hits ... | \frac{1}{99} | general_qa | 172 |
The following is a multiple choice question (with answers).
===Question
In which city was Yevgeny Polivanov arrested on August 16, 1937, during the Great Purge?
===Choices
Alma-Ata
Minsk
Omsk
Moscow
Kiev
Astana
Leningrad
Novosibirsk
Tashkent
Bishkek | Bishkek | general_qa | 86 |
The following is a multiple choice question (with answers).
===Question
The hallmark of the maturity of ancient Chinese feudal military thought is ( ).
===Choices
the emergence of 'The Art of War by Sun Tzu'
the emergence of 'Seven Military Classics'
the emergence of 'Sun Bin's Art of War'
the emergence of 'The Art of... | the emergence of 'The Art of War by Sun Tzu' | general_qa | 126 |
The following is a multiple choice question (with answers).
===Question
Which of the following is correct to create a student table that automatically inserts the current time into the database as the enrollment time when no enrollment time is provided when the user inserts the data?
===Choices
Use FOREIGN KEY constra... | Use the DEFAULT constraint | general_qa | 104 |
The following is a multiple choice question (with answers).
===Question
ZSZ indicates that the twist direction of the single yarn is () twist, the single yarn combined with the initial twist is () twist, and the combined double twist is () twist.
===Choices
Z, Z, Z
Z, S, B
Z, Z, S
Z, S, Z
S, S, S
Z, S, S
S, Z, S
S, Z,... | Z, S, Z | general_qa | 106 |
The following is a multiple choice question (with answers).
===Question
A compound $({ C }_{ 5 }{ H }_{ 8 })$ reacts with ammonical ${ Cu }{ Cl }_{ 2 }$ to give a red precipitate and reacts with excess of $KMnO_{ 4 }$ solution to give $(CH_{ 3 })_{ 2 }CH- COOH.$ The compound is
===Choices
$$(CH_{ 3 })(CH_{ 2 })_{ 2 }C... | $$(CH_{ 3 })_{ 2 }CH-C=CH$$ | general_qa | 295 |
The following is a multiple choice question (with answers).
===Question
CuSO$_4.$5$H_2O$(s) $\rightleftharpoons$ CuSO$_4$.3H$_2O$(s) + 2H$_2O$(g); $k_p$ = 4 $10^{4}$ atm$^2.$ If the vapour pressure of water is 38 torr then percentage of relative humidity is : (Assume all data at constant temperature)
===Choices
20
40
... | 40 | general_qa | 137 |
The following is a multiple choice question (with answers).
===Question
The electron configuration of the ground-state Ca (calcium) atom outside the nucleus is ${[Ar]4s^{2}}$, where one of the 4s electrons can be excited to 4p, 3d, 5s, and other orbitals, thereby forming singlet and triplet states. If a particular trip... | 4s3d | general_qa | 204 |
The following is a multiple choice question (with answers).
===Question
What are the quotient and remainder of dividing $g (x)$ by $f (x)$ ?
$$
\quad f ( x )=x^{4}-2 \, x^{3}+x-1, g ( x )=3 x^{2}+x+1
$$
===Choices
$$\frac{1} {9} x^{2}-\frac{7} {9} x+\frac{4} {2 7} \ \ \ \ \ \ \ \frac{4 4} {2 7} x-\frac{3 1} {2 7}$$
$$... | $$\frac{1} {3} x^{2}-\frac{7} {9} x+\frac{4} {2 7} \ \ \ \ \ \ \ \frac{4 4} {2 7} x-\frac{3 1} {2 7}$$ | general_qa | 739 |
The following is a multiple choice question (with answers).
===Question
Lehrman designed an experiment involving turtledoves, dividing the subjects into three groups: (1) exclusively female birds, housed individually; (2) female birds paired with male birds but without nesting materials provided; (3) female birds paire... | The male mate and nesting materials are prerequisites for the female dove to incubate eggs. | general_qa | 347 |
The following is a multiple choice question (with answers).
===Question
What is the scientific name of the first reported sexually dichromatic snake from the Indian subcontinent?
===Choices
Ahaetulla prasina
Ahaetulla dichromata
Ahaetulla variegata
Ahaetulla dichromica
Ahaetulla dichromis
Ahaetulla bicolor
Ahaetulla n... | Ahaetulla anomala | general_qa | 112 |
The following is a multiple choice question (with answers).
===Question
What effect will the increase of SiO2 content in slag have?
===Choices
The fluidity of slag is deteriorated
The oxygen content in slag is reduced
The viscosity of slag becomes significantly higher
The dissipation of slag constituents is more evide... | The separation of slag phase and matte phase is more obvious | general_qa | 118 |
The following is a multiple choice question (with answers).
===Question
Which of the following are necessary criteria for determining causation?
===Choices
Foundations and ramifications, and the power of connection
The strength of association and the reproducibility of the association
The strength of association and t... | Antecedents and consequences, and the strength of association | general_qa | 145 |
The following is a multiple choice question (with answers).
===Question
Styrene is polymerized at 60°C using benzoyl peroxide as an initiator: monomer concentration $[\mathrm{M}] = 8.35 \ \mathrm{mol} \cdot \mathrm{L}^{-1}$, initiator concentration $[\mathrm{I}] = 0.01 \ \mathrm{mol} \cdot \mathrm{L}^{-1}$, initiator e... | $$
0. 6 9 ( \mathrm{s} ),\ 1.01 {\times} 1 0^{3},\ 2.10 {\times} 1 0^{5}
$$ | general_qa | 751 |
The following is a multiple choice question (with answers).
===Question
In which year did Jasper Johns win the Praemium Imperiale Award for Painting?
===Choices
1994
1992
1997
1996
1993
1995
1990
1999
1998
1991 | 1993 | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
During the development of computers, how was multiplication and division typically implemented in 8-bit microcomputers?
===Choices
Firmware
Software
Parallel buses
Algorithms
Logic gates
Transistors
Hardware
Registers
Circuitry
ROM chips | Software | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
A solid sphere of uniform density and radius $4$ units is located with its centre at the origin O of coordinates. Two spheres of equal radii $1$ unit, with their centres at A$(-2, 0, 0)$ and B$(2, 0, 0)$, respectively, are taken out of the solid le... | The gravitational potential is the same at all points on the circle $y^2+z^2=4$ | general_qa | 311 |
The following is a multiple choice question (with answers).
===Question
Which bishop rewrote the English lyrics for the English version of 'Angels We Have Heard on High'?
===Choices
James Chadwick
John M. Chadwick
John R. Chadwick
John H. Chadwick
John C. Chadwick
John J. Chadwick
John Chadwick
John W. Chadwick
John T... | James Chadwick | general_qa | 94 |
The following is a multiple choice question (with answers).
===Question
In the single-slit Fraunhofer diffraction experiment, monochromatic light of wavelength $\lambda$ is incident perpendicularly on a single slit. In the direction corresponding to a diffraction angle of 30°, if the wavefront at the slit can be divide... | $3\lambda$ | general_qa | 153 |
The following is a multiple choice question (with answers).
===Question
L:1/4
M:none
K:C
__B4 |] %1 - What is the enharmonic equivalent?
===Choices
L:1/4
M:none
K:C
^^B4 |] %1
L:1/4
M:none
K:C
A4 |] %1
L:1/4
M:none
K:C
^B4 |] %1
L:1/4
M:none
K:C
^A4 |] %1 | L:1/4
M:none
K:C
A4 |] %1 | general_qa | 123 |
The following is a multiple choice question (with answers).
===Question
The resultant amplitude due to superposition of two waves $y_{1} = 5\sin (wt - kx)$ and $y_{2} = -5\cos (wt - kx - 150^{\circ})$.
===Choices
$$5\sqrt {2 - \sqrt {1}}$$
$$5\sqrt {3}$$
$$5\sqrt {2 + \sqrt {3}}$$
$$5\sqrt {2 - \sqrt {2}}$$
$$5\sqrt {... | $$5\sqrt {2 - \sqrt {3}}$$ | general_qa | 194 |
The following is a multiple choice question (with answers).
===Question
Ice, water, and water vapor, each 1g, are in thermal equilibrium in a closed container, with a pressure of 4.58 mmHg and a temperature of 0.01°C. When this system is heated by 60 cal, the total volume remains constant, accurate to within 2%. What i... | $$
x \approx0. 2 5 \mathrm{g}, \ \ y \approx1. 7 5 \mathrm{g}, \ \ z \approx1. 0 0 \mathrm{g}
$$ | general_qa | 602 |
The following is a multiple choice question (with answers).
===Question
The electrical conductivity of a cylindrical silicon specimen 7.0 mm (0.28 in.) diameter and 57 mm (2.25 in.) in length in which a current of 0.25 A passes in an axial direction. A voltage of 24 V is measured across two probes that are separated by... | $$
1 2. 2 \ ( \Omega\! \! \!-\! \! {\bf m} )^{-1}
$$ | general_qa | 404 |
The following is a multiple choice question (with answers).
===Question
According to the CAPM model, assuming: market expected return = 15%, risk-free rate = 8%; expected return of X security = 17%, beta value of X = 1.25; which of the following statements is correct?
===Choices
Alpha value of X is -0.25%
X is expecte... | Alpha value of X is 0.25% | general_qa | 159 |
The following is a multiple choice question (with answers).
===Question
Hard core Preserved eggs use ______ more than sugar core Preserved eggs.
===Choices
Brown cane sugar
Wood charcoal
Acetic acid
Grass ash or plant ash
Lead monoxide
Soda ash
Refined white sugar
Beach sand
Sea salt
Clay minerals | Grass ash or plant ash | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
Under standard temperature and pressure conditions, compare the relative rates at which inert gases,Ar, He, and Kr diffuse through a common orifice.
===Choices
.1582 : .6008 : .2092
.2502 : .4502 : .1502
.1002 : .3002 : .4002
.2002 : .4002 : .1092... | .1582 : .4998 : .1092 | general_qa | 225 |
The following is a multiple choice question (with answers).
===Question
What is China's first national mine park?
===Choices
Xuzhou National Mine Park
Huangshi National Mining Park
Huangshi National Mine Park
Huangshi National Mining Park (Formerly Huangshi National Mineral Park, Renamed 2020)
Wuhan National Mine Park... | Huangshi National Mine Park | general_qa | 134 |
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