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
Given ${ k }_{ 1 }=1500N/m,{ k }_{ 2 }=500N/m,{ m }_{ 1 }=2kg,{ m }_{ 2 }=1kg$. Find:(a) Potential energy stored in the springs in equilibrium, and(b) work done in slowly pulling down ${m}_{2}$ by $8cm$
===Choices
(a) $0.3J$ (b) $1.5J$
(a) $0.3J$... | (a) $0.4J$ (b) $1J$ | general_qa | 266 |
The following is a multiple choice question (with answers).
===Question
When using the iodometric method to measure dissolved oxygen in water, the presence of reducing substances in the water can produce ( ).
===Choices
Negative enhancement
Positive contribution
Standard deviation
Negative interference
Direct contamin... | Negative interference | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
An uncharged capacitor of capacitance $100 \mu F$ is connected to a battery of emf $20 V$ at t = 0 through a resistance $10\Omega$ at what time at which the rate of energy stored the capacitors is maximum:
===Choices
(1 ln 2) ms
(3 ln 2) ms
(8 ln... | (2 ln 2) ms | general_qa | 153 |
The following is a multiple choice question (with answers).
===Question
The choice of standard state affects which of the following sets of physical quantities?
===Choices
$$
\rho \,, n^{\Theta} \,, \Delta_{T} S_{m}^{\Theta}
$$
$$
V \,, P^{\Theta} \,, \Delta_{\theta} H_{m}^{\Theta}
$$
$$
d \,, \eta^{\Theta} \,, \Delta... | $$
a \,, \mu^{\Theta} \,, \Delta_{\tau} G_{m}^{\Theta}
$$ | general_qa | 318 |
The following is a multiple choice question (with answers).
===Question
When the transistor operates in the saturation region, the voltage applied to the emitter junction and collector junction should be__
===Choices
The former is reversed and the latter is reversed
The former is biased and the latter is reversed
The ... | The former is biased and the latter is biased | general_qa | 128 |
The following is a multiple choice question (with answers).
===Question
For the cell at $298$K$Ag(s) | AgBr(s) | Br^-(0.01M) | | I^-(0.02M) | AgI (s) | Ag(s)$the correct information is:[ Given : $Ksp (AgBr) = 4 \times 10^{-13}, Ksp (AgI) = 8 \times 10^{-17}, \dfrac{2.303RT}{F} = 0.06V, log 2 = 0.3$]
===Choices
$$E^0_{... | $$E^0_{cell} = 0$$ | general_qa | 327 |
The following is a multiple choice question (with answers).
===Question
The correct options are I. WHO's principles for chronic disease control and management are based on community, establishing supportive environments, emphasizing personal responsibility, with the medical system as the main focus. II. Occupationally ... | IV, V and VIII | general_qa | 246 |
The following is a multiple choice question (with answers).
===Question
The value of $(4!)! $ is
$$$620, 448, abc, 733, 239, 439, 360, 000$$$
where $a$ , $b$ , $c$ are digits. What is $100a + 10b + c$ ?
===Choices
402
401
406
404
407
410
405
412
411
403 | 401 | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
$10$ gm of ice at $-20C$ is added to $10$ gm of water at $50C$. Specific heat of water $=1 cal/g-c$. specific heat of ice $= 0.5 cal/gm-C$.Latent heat of ice $= 80 cal/gm$. Then resulting temperature is
===Choices
$$15C$$
$$12C$$
$$50C$$
30C
$$0C$... | $$50C$$ | general_qa | 141 |
The following is a multiple choice question (with answers).
===Question
In which energy region does the resonance absorption of U238 mainly occur?
===Choices
Dynamic energy region
Intermediate energy region
High energy region
Slow energy region
Moderate energy region
Thermal energy region
Rapid energy region
Effective... | Intermediate energy region | general_qa | 75 |
The following is a multiple choice question (with answers).
===Question
Let $Y_{0}=28$, according to the recurrence formula
$$
Y_{n} = Y_{n-1} - \frac{1}{100} \sqrt{783} \ \ \ (n = 1, 2, \cdots)
$$
calculate up to $Y_{100}$. If $\sqrt{783} \approx 27.982$ (to five significant figures), how much error will there be in t... | $$
Y_{1 0 0} \leqslant\frac{1} {2} \times1 0^{-3}
$$ | general_qa | 462 |
The following is a multiple choice question (with answers).
===Question
What is correctly described about the shared characteristics between Escherichia coli and mouse cells?
===Choices
Do not contain linear DNA and ribosomes.
Both lack ribosomes and DNA.
Both exclusively contain linear DNA and chloroplasts.
All conta... | All contain circular DNA and ribosomes. | general_qa | 116 |
The following is a multiple choice question (with answers).
===Question
Arrange the following in the order of rate of oxidation with periodic acidI. $HOCH_{2}CH_{2}OH$II. $CH_{3}CHOHCHOHCH_{3}$III. $(CH_{3})_{2} C(OH)C(OH) (CH_{3})_{2}$
===Choices
$$II > III > I$$
$$III > I > II$$
$$II > I > III$$
$$I > II > III$$
$$I... | $$I > II > III$$ | general_qa | 133 |
The following is a multiple choice question (with answers).
===Question
If the electric charge $q$ is divided into $n$ point charges each with a charge of $\frac{q}{n}$, how much work is done by an external force to move these $n$ point charges from infinity to a metal sphere with radius $R$ and charge $Q$?
===Choices... | $$
\frac{k q Q} {R}+\frac{k q^{2}} {2 R} ( 1-\frac{1} {n} )
$$ | general_qa | 470 |
The following is a multiple choice question (with answers).
===Question
The peak flow of the historical flood is obtained by _____
===Choices
Mapping the geographical terrain surrounding the river
Examining the color and clarity of the water during peak times
Estimating using mathematical models of fluid dynamics
Meas... | Investigate the relationship curve between water level and discharge of historical peak flood levels based on surveys | general_qa | 134 |
The following is a multiple choice question (with answers).
===Question
The autonomic nervous system in cardiovascular regulation belongs to ( ).
===Choices
Navigator unit
Intervening agent
Regulatory network
Activation mechanism
Feedback module
Control information
Detection system
Sensory apparatus
Control system
Con... | Control system | general_qa | 64 |
The following is a multiple choice question (with answers).
===Question
In the animal classification system, ①family ②phylum ③species ④genus are four different taxonomic ranks. What should be the order from highest to lowest rank?
===Choices
2431
1243
2314
1342
2143
3412
1234
4123
4321
2134 | 2143 | general_qa | 108 |
The following is a multiple choice question (with answers).
===Question
Which sociological concept refers to the societal expectations and behaviors associated with one's position in a social hierarchy?
===Choices
Social Class
Behavioral Norms
Group Dynamics
Positional Power
Cultural Norm
Social Division
Social Functi... | Social Role | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
An 8K×8-bit dynamic RAM chip has an internal structure arranged in a 256×256 format, with an access cycle of $0.1\mu\mathrm{s}$. What is the refresh interval for the distributed refresh method?
===Choices
$$
4 9. 9 \mu\mathrm{s}
$$
$$
5 4. 2 \mu\m... | $$
5 1. 2 \mu\mathrm{s}
$$ | general_qa | 230 |
The following is a multiple choice question (with answers).
===Question
What corps was also known as the Druzhina during World War I?
===Choices
Ukrainian Legion
Polish Legion
Russian Volunteer Legion
Russian Legion
Russian Volunteer Guard
Russian Imperial Guard
Czechoslovak Legion
Russian Guard
Russian Volunteer Corp... | Czechoslovak Legion | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
Someone's food intake is 2500 calories/day, of which 1200 calories/day is used for basic metabolism, in fitness exercise, he consumes 16 calories/kg/day multiplied by his weight, assuming that the calories stored in the form of fat are 100% effecti... | $$w \left( t \right)=\frac{3 2 5} {4}+\left( w_{0}-\frac{3 2 5} {4} \right) \mathrm{e}^{-\frac{t} {6 2 5}}$$ | general_qa | 743 |
The following is a multiple choice question (with answers).
===Question
The solubility of $ BaSO_4 $ in water is 0.00233 g per litre at $ 30^o C $ (atomic weight of Ba = 137). The solubility of $ BaSO_4 $ in $ 0.1 M (NH_4)_2SO_4 $ solution at the same temperature is -
===Choices
$$10^{-7} mole /litre$$
$$ 10^{-9} mole... | $$ 10^{-11} mole /litre $$ | general_qa | 197 |
The following is a multiple choice question (with answers).
===Question
In 1937, after Huang Zi resigned from the post of Dean of Academic Affairs of Shanghai National Conservatory of Music, he concentrated on the compilation of two textbooks, "_______" and "________".
===Choices
Ethnomusicology, analysis
Musicology, ... | Music history, harmony | general_qa | 116 |
The following is a multiple choice question (with answers).
===Question
Let $\alpha_{1}, \ldots, \alpha_{n}$ and $b_{1}, \ldots, b_{n}$ be complex numbes such that $a_{i} \!+\! b_{j} \neq 0$ for all $i, j=1, \ldots, n$ . Define $c_{i j} :={\frac{1} {a_{i}+b_{j}}}$ for all $i, j=1, \ldots, n$ , and let $C$ be the $n\tim... | $$\frac{\prod_{1 \leq i < j \leq n} ( a_{i}-a_{j} ) ( b_{i}-b_{j} )} {\prod_{1 \leq i, j \leq n} ( a_{i}+b_{j} )}$$ | general_qa | 863 |
The following is a multiple choice question (with answers).
===Question
How many double diminished intervals can be formed within an octave downwards from the note ♯F?
===Choices
2
1
3
4 | 1 | general_qa | 43 |
The following is a multiple choice question (with answers).
===Question
Two moles of air,When heated through $10k$ expand by an amount of $1.66 \times {10^{ - 3}}{m^{ - 3}}$ under a constant pressure of ${10^5}N/{m^2}.$ If ${C_v} = 20.81J/mole\,K,$ then $C_p$ is
===Choices
$$39.11J/mole\,K$$
$$49.11J/mole\,K$$
$$32.11... | $$49.11J/mole\,K$$ | general_qa | 242 |
The following is a multiple choice question (with answers).
===Question
Calculate the threshold energy required to produce a $\mathrm{K^{-}}$ meson by bombarding a stationary proton target with a $\pi$ meson.
===Choices
$$
1. 5 5 0 ( \mathrm{G e V} )
$$
$$
1. 3 9 6 ( \mathrm{G e V} )
$$
$$
1. 5 0 2 ( \mathrm{G e V} )
... | $$
1. 5 0 2 ( \mathrm{G e V} )
$$ | general_qa | 258 |
The following is a multiple choice question (with answers).
===Question
On what day, month, and year did Frank Schreider, an American explorer, die?
===Choices
January 21, 1993
January 21, 1995
January 21, 1992
January 21, 1996
January 21, 1990
January 21, 1997
January 21, 1999
January 21, 1991
January 21, 1994
Januar... | January 21, 1994 | general_qa | 146 |
The following is a multiple choice question (with answers).
===Question
For a certain oil, at 20°C, the refractive index is 3.2°E, and at 70°C, the refractive index is 1.6°E. Its viscosity-temperature index $\lambda$ is ().
===Choices
$$
\lambda=0.06{°C}^{-1}
$$
$$
\lambda=0.07{°C}^{-1}
$$
$$
\lambda=0.04{°C}^{-1}
$$
... | $$
\lambda=0.02{°C}^{-1}
$$ | general_qa | 249 |
The following is a multiple choice question (with answers).
===Question
A block mass m is kept on an inclined plane of a lift moving down with acceleration of 2 $ms^{-2}$. What should be minimum coefficient of friction to let the block move down with constant velocity?
===Choices
\(\mu = 0.6 \)
\(\mu = 0.75\)
\(\mu = ... | $$\mu = 0.8$$ | general_qa | 164 |
The following is a multiple choice question (with answers).
===Question
An increase in corporate optimism will have which of the following effects in the market for loanable funds?
===Choices
An increase in demand increasing the interest rate.
A decrease in demand increasing the interest rate.
An increase in supply an... | An increase in demand increasing the interest rate. | general_qa | 151 |
The following is a multiple choice question (with answers).
===Question
Phenol test or Reidel walker test is done to determine?
===Choices
Effectiveness of a disinfectant in different pH levels
Efficiency of a disinfectant
Chlorine demand
Hardness of water
Potency of a disinfectant
Effectiveness of a disinfectant
Effe... | Efficacy of a disinfectant | general_qa | 111 |
The following is a multiple choice question (with answers).
===Question
Triangle $ABC$ has side lengths $AB = 9$ and $AC = 15.$ Points $P$ and $Q$ are on sides $\overline{AC}$ and $\overline{AB}$ respectively, such that $PB = AB$ and $QC = AC.$ If the circumcircle of $\triangle APQ$ passes through the midpoint of $\ove... | 204 | general_qa | 145 |
The following is a multiple choice question (with answers).
===Question
Two wires AO and OC carry currents $i$ as shown in figure. One end of both the wires extends to infinity $\angle AOC$ =$\alpha$, the magnitude of magnetic field at a point P on the bisector of the two wires at a distance $r$ from O is
===Choices
... | $$\dfrac{\mu_{0}i}{2\pi r}\dfrac{\left ( 1+\cos\dfrac{\alpha }{2} \right )}{\sin\left ( \dfrac{\alpha}{2} \right)}$$ | general_qa | 566 |
The following is a multiple choice question (with answers).
===Question
From the specific rotation of quartz for \lambda = 508.582 nm, \beta = 29.728 Deg/mm , compute the difference in refractive index (n_L-n_R), setting the thickness of the quartz plate = 1 mm.
===Choices
6.4 × 10^-5
10.4 × 10^-5
9.4 × 10^-5
7.2 × 10... | 8.4 × 10^-5 | general_qa | 175 |
The following is a multiple choice question (with answers).
===Question
Which of the following types of data involves counting the number of occurrences of a behavior observed during a specified time period?
===Choices
Latency recording
Partial-interval recording
Momentary time sampling
Rate recording
Duration recordi... | Event recording | general_qa | 77 |
The following is a multiple choice question (with answers).
===Question
In what year did conductor David Randolph receive his master's degree from Columbia University?
===Choices
1944
1949
1948
1943
1942
1947
1940
1946
1941
1945 | 1942 | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
In 1860, the British and French coalition captured Beijing, robbed and burned down the royal garden known as the "Garden of Ten Thousand Gardens" ().
===Choices
Yuanmingyuan
Purple Bamboo Park
Zhongnanhai
Old Summer Palace
Beihai
Temple of Heaven
... | Yuanmingyuan | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
An 82-year-old woman is brought to the physician by her nephew, who lives with her because she has a pessimistic attitude and has displayed overall distrust of her nephew for 1 year. She frequently argues with her nephew and embarrasses him in fron... | Reporting possible elder abuse by phone | general_qa | 345 |
The following is a multiple choice question (with answers).
===Question
What surgery should be performed on women with rheumatic heart disease and Grade III heart function, ectopic pregnancy and ruptured right fallopian tube?
===Choices
Right tubectomy, left tubal ligation
Left adnexectomy, right oophorectomy
Left oop... | Right tubectomy, left tubal ligation | general_qa | 158 |
The following is a multiple choice question (with answers).
===Question
Let $0<a<b<c<d<e<f<g$ be a geometric sequence of integers. Let $\star(x)$ denote the number of divisors of $x$ . For example, $\star(6)=4$ because $1$ , $2$ , $3$ , and $6$ are the divisors of $6$ . If $\star(a)=7$ , $\star(g)=13$ , and $d-c=432$ ,... | 972 | general_qa | 159 |
The following is a multiple choice question (with answers).
===Question
The process through which humanity understands and transforms the world is one that encompasses innovative development. Human innovative activities are rich in content and manifestation, and can be primarily summarized into two fundamental aspects.... | Practical Innovation and Theoretical Innovation | general_qa | 144 |
The following is a multiple choice question (with answers).
===Question
A channel samples once every 1/8 second, and the transmission signal has a total of 16 different states. The maximum data transmission rate is ().
===Choices
48b/s
64b/s
96b/s
12b/s
4b/s
8b/s
128b/s
16b/s
32b/s
24b/s | 32b/s | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
Vitamin ____ contains metal elements.
===Choices
D2
B12
C3
F9
J7
E5
K4
A1
H2
B6 | B12 | general_qa | 54 |
The following is a multiple choice question (with answers).
===Question
The standard reaction Gibbs energies (at pH= 7) for the hydrolysis of glucose-1-phosphate, glucose-6-phosphate, and glucose-3-phosphate are-21, -14, and -9.2 kJ mol. The equilibrium constants for the hydrolyses at 37°C is ().
===Choices
$$
4. 1 \t... | $$
3. 5 \times1 0^{3};2. 3 \times1 0^{2};{3 6}
$$ | general_qa | 416 |
The following is a multiple choice question (with answers).
===Question
The automobile drive shaft $AB$ made from seamless steel pipe, with an outer diameter $D=90 \, \mathrm{mm}$ and a wall thickness $t=2.5 \, \mathrm{mm}$, is composed of 45 steel, with an allowable shear stress $\left[ \begin{matrix} \tau \\ \end{mat... | $$53.2mm$$ | general_qa | 237 |
The following is a multiple choice question (with answers).
===Question
A defendant was suspected of having burglarized his neighbor's apartment. The neighbor reported that his apartment had been ransacked and several items of clothing had been stolen. During the course of their investigation, two police detectives wen... | suppress the confession because it was obtained in violation of his Fifth Amendment right to counsel, and the clothing because the search warrant was secured as a result of the confession. | general_qa | 588 |
The following is a multiple choice question (with answers).
===Question
_______ refers to the use of artificial methods to control the gender of animals before birth, altering the natural gender ratio of offspring, and thereby producing livestock of a specific gender in accordance with human wishes, significantly enhan... | Gender control | general_qa | 96 |
The following is a multiple choice question (with answers).
===Question
Mites are known to transmit-
===Choices
Mange
Chiggers
Sarcoptic mange
Scabies
Relapsing fever
Dermatitis
Human babesiosis
Lyme disease
Acariasis
KFD | Scabies | general_qa | 62 |
The following is a multiple choice question (with answers).
===Question
For a third-year computer science program at a university, there are 5 elective courses. Students have simultaneously enrolled in the following course pairs: Course 1 and 2, Course 1 and 3, Course 1 and 4, Course 2 and 4, Course 2 and 5, Course 3 a... | 3 | general_qa | 134 |
The following is a multiple choice question (with answers).
===Question
A factory has three self-owned power supplies, which are used only when one fails and disconnects. The failure rate is 0.2*10^-5/hour, then the system is a ____ system. Try to predict the reliability of the factory not experiencing a power outage f... | standby redundancy, 0.9999997 | general_qa | 238 |
The following is a multiple choice question (with answers).
===Question
In a nautral decay, series starts with $_{90}Th^{232}$ and finally terminates at $_{82}Pb^{208}$. A thorium one sample was found to contain $8\times 10^{-5} $ml of helium at $1$ atm and $273$ K and $5\times 10^{-7}$ gm of $Th^{232}$. Find the age o... | $$t=4.89 \times 10^{9} years$$ | general_qa | 329 |
The following is a multiple choice question (with answers).
===Question
The national anthem of Austria was composed by ________.
===Choices
Mahler
Brahms
Bruckner
Wagner
Mozart
Beethoven
Haydn
Offenbach
Strauss
Schubert | Haydn | general_qa | 62 |
The following is a multiple choice question (with answers).
===Question
The novel 'Lake Side Children's Words' tells the story of a suffering family from a child's perspective. Who is the author?
===Choices
Mao Dun
Lu Xun
Wang Tongzhao
Bing Xin
Xu Dishan
Zhou Zuoren
Feng Wenbing | Wang Tongzhao | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
In 2015, in what exhibition was Henry Ossawa Tanner's work included?
===Choices
African American Artists: 1920-1970s
African American Artists in Philadelphia, 1920-1970s: A Century of Creativity
African American Artists: 1920-1970
African American... | We Speak: Black Artists in Philadelphia, 1920s-1970s | general_qa | 223 |
The following is a multiple choice question (with answers).
===Question
What is Pence's main objective in his article "Will Cloning Harm People?"
===Choices
to argue for the potential benefits of cloning
to use consequentialist arguments to show that cloning is immoral
to use Kant's humanity formulation to show that c... | to object to consequentialist arguments against cloning | general_qa | 146 |
The following is a multiple choice question (with answers).
===Question
Using the bisection method to find the root of the equation
$$
f(x) = x^{3} + x^{2} - 3x - 3 = 0
$$
The interval $[1, 2]$ is(), where the absolute error must not exceed $10^{-2}$.
===Choices
$$
x_{7}=1. 7 0 4 8 5
$$
$$
x_{7}=1. 7 2 6 5 6
$$
$$
x_{... | $$
x_{7}=1. 7 2 6 5 6
$$ | general_qa | 293 |
The following is a multiple choice question (with answers).
===Question
Since what year has the Bader Award for Organic Chemistry been awarded?
===Choices
1992
1985
1998
1986
1989
1990
1987
1999
1988
1991 | 1989 | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
Set $A=\left( \begin{matrix} {{{1}}} & {{{2}}} & {{{3}}} \\ {{{-1}}} & {{{g}}} & {{{2}}} \\ {{{0}}} & {{{0}}} & {{{1}}} \\ \end{matrix} \right)$, and the eigenvalues of $A$ are 1,2,3, then what is the value of $g$ ?
===Choices
$$1
$$
$$2
$$
$$-2
$... | $$4
$$ | general_qa | 153 |
The following is a multiple choice question (with answers).
===Question
What are the contraindications to extracorporeal shock wave lithotripsy?
===Choices
Creatinine level normal, Proximal urinary tract obstruction, No urinary infection, Not pregnant
Creatinine >270µmol/L, Proximal urinary blockage with stones, Chron... | Creatinine >265µmol/L, Distal urinary tract obstruction from stones, Acute urinary tract infection, Pregnancy | general_qa | 281 |
The following is a multiple choice question (with answers).
===Question
Sports medicine encompasses all of the following fields of study related to sport except ().
===Choices
Coaching
Strength training and conditioning
Massage therapy
Rehabilitation services
Injury diagnosis and treatment
Biomechanics
Athletic traini... | Sport psychology | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
A ruby laser is aimed in free space at a target 10,000 Km away. If the laser beam initially is 14 mm in diameter, how large in diameter will the beam be when it hits the target? (\lambda = 694.3 nm)
===Choices
2000 m
1210 m
1310 m
1600 m
1000 m
14... | 1210 m | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
The science that studies the fundamental theories, technological processes, production equipment, and quality management of dosage forms and pharmaceutical manufacturing is called ( ).
===Choices
Modern Pharmaceutics
Biopharmaceutics
Pharmaceutica... | Industrial Pharmaceutics | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
A prism of apex angle 72° and refractive index 1.66 is immersed in water, which has an index of refraction of 1.33. Find the angle of minimum deviation.
===Choices
30 degrees
19.5 degrees
25 degrees
18 degrees
22.4 degrees
28 degrees
20 degrees
24... | 22.4 degrees | general_qa | 106 |
The following is a multiple choice question (with answers).
===Question
At which meeting did the Communist Party of China propose the slogan of collecting folk songs and carry out related work during the struggle against Jinggang Mountain?
===Choices
Lushan Conference
Xibaipo Conference
Zunyi Conference
Luding Bridge ... | Gutian Conference | general_qa | 96 |
The following is a multiple choice question (with answers).
===Question
What model is usually used for the mathematical model of electrical equipment in the steady-state analysis of power system?
===Choices
Linear Impedance Model
Constant Impedance Model
Variable Current Model
Constant Voltage Model
Variable Voltage M... | Constant Power Model | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
Which one is suitable for moisture determination using the toluene method?
===Choices
Bezoar
Foxglove
Strychnine Seeds
Lilac
Licorice
Japanese Honeysuckle
Ophiopogon japonicus
Evening Primrose
Red Clover
Echinacea | Lilac | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
A container is filled with water ($\mu =$1.33) upto a height of $33.25 cm$. A concave mirror is placed $15 cm$ above the water level and the image of an object placed at the bottom is formed $25 cm$ below the water level. The focal length of the m... | 19 cm | general_qa | 134 |
The following is a multiple choice question (with answers).
===Question
A 61-year-old woman comes to the physician because of a constant, dull headache and generalized body pains for the past 8 months. She has also had difficulty hearing from her left side, which started a month after the onset of the headaches. Five m... | Mixed lytic and sclerotic lesions | general_qa | 321 |
The following is a multiple choice question (with answers).
===Question
Under light conditions, which of the following plant organs or structures will not have any cells forming chloroplasts?
===Choices
Roots of the Peanut Plant
The "cotyledon" of soybeans after germination
Filaments in Wheat Anthers
Seeds of the Rice... | Petals of the Soybean Flower | general_qa | 121 |
The following is a multiple choice question (with answers).
===Question
What is the ratio of the aging rate of rocks at the center of the earth to that at the surface, due to the earth's rotation and gravitational effects? What is the ratio of the aging rate of rocks at the midpoint of the radius to that at the surface... | $$
1+f
$$
$$
( 1+f ) / ( 1+f / 4 )
$$ | general_qa | 360 |
The following is a multiple choice question (with answers).
===Question
Given that the modulated signal is a single-frequency cosine signal of 8MHz, we assume that channel noise unilateral power spectral density $n_{0}=5 \times10 0^{-1 5} \, \mathrm{W/Hz}$ , channel power loss $\alpha= 50 ~ \mathrm{d B}$ , And the know... | $96\mathrm{M H z},1067 \mathrm{W},16\mathrm{M H z},120\mathrm{W}$ | general_qa | 498 |
The following is a multiple choice question (with answers).
===Question
A uniformly dense spherical symmetrical cavity, with an inner radius $R$, thickness $H$, total mass $M$, and a rotation period $P$-what is the ratio of the aging rates of rock or air at the center, the inner radius, and the surface due to rotationa... | $$
1 : \left( 1-\frac{2 \pi^{2} R^{2}} {P^{2} c^{2}} \right) : \left[ 1+\frac{G M} {6 R c^{2}}-\frac{2 \pi^{2} R^{2}} {P^{2} c^{2}} \right]
$$ | general_qa | 886 |
The following is a multiple choice question (with answers).
===Question
Given real numbers $b_0, b_1, \dots, b_{2019}$ with $b_{2019} \neq 0$, let $z_1,z_2,\dots,z_{2019}$ be the roots in the complex plane of the polynomial \[ P(z) = \sum_{k=0}^{2019} b_k z^k. \] Let $\mu = (|z_1| + \cdots + |z_{2019}|)/2019$ be the av... | 2019^{-1/2019} | general_qa | 364 |
The following is a multiple choice question (with answers).
===Question
The truth table at the bottom of this page gives values for the three Propositional Logic sentences on the right for all possible values of the three proposition constants shown on the left.
| p | q | r | p ⇒ q ∨ r | p ⇒ r | q ⇒ r |
|-----|-----|--... | No, Yes, No, No, Yes | general_qa | 454 |
The following is a multiple choice question (with answers).
===Question
In a container, there are several grams of ice at 0°C. If warm water at a temperature of $t_{1}=30 \mathrm{~°C}$ and mass of $m_{1}=30 \mathrm{~g}$ is poured into the container, the ice melts and the resulting temperature is half of the intended te... | $$5°C,10g$$ | general_qa | 249 |
The following is a multiple choice question (with answers).
===Question
In which year did the earliest self-organized architectural education in China begin?
===Choices
1895
1945
1950
1905
1920
1923
1960
1935
1910
1980 | 1923 | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
Maximum magnetic moments of $ Cr (Z = 24), Mn^{+} (Z=25),$ and $Fe^{2+} (Z=26), $ are x, y, and z. They are in order:
===Choices
z < y < x
x = z <y
z = y < x
x < z = y
z < x = y
x < y < z
x < y = z
x = y = z
z < x < y
x = y < z | x = z <y | general_qa | 126 |
The following is a multiple choice question (with answers).
===Question
The indices for the three-phase proportion of soil include: particle density of soil, moisture content, weight, porosity ratio, porosity rate, and saturation. Among these indices, which are the direct experimental indices?
===Choices
Particle dens... | Particle density, moisture content, specific gravity | general_qa | 162 |
The following is a multiple choice question (with answers).
===Question
Where is the occurrence of a malformed central cusp most common?
===Choices
First molars
Central incisors
Second premolars
First incisors
Incisors
Canines
Premolars
Molars
Third molars
Lateral incisors | Premolars | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
What is the formula for calculating the dependence of national debt?
===Choices
Fiscal expenditure amount of the year/public debt balance of the year
Public debt issuance amount of the year/GDP of the year
Public debt balance of the year/fiscal re... | Public debt issuance amount of the year/fiscal expenditure amount of the year | general_qa | 168 |
The following is a multiple choice question (with answers).
===Question
In what year did Timothy "Tim" Griffin obtain a political appointment as a Special Assistant to the Assistant Attorney General for the Criminal Division?
===Choices
2000
2004
2005
2002
2003
2009
2008
2007
2001
2006 | 2001 | general_qa | 93 |
The following is a multiple choice question (with answers).
===Question
What is the main characteristic of a Continuing Appropriation?
===Choices
It emphasizes immediate disbursement of allocated resources
It expires at the end of the first fiscal quarter every year
It prohibits the rollover of funds into subsequent f... | It becomes available at the beginning of the FY following the appropriation act | general_qa | 138 |
The following is a multiple choice question (with answers).
===Question
Fill in the blanks with the appropriate answers:
The main memory management jobs for game resources are ________, __________ and __________.
① Memory size limit ② memory allocation ③ access flow setting ④ access guarantee ⑤ memory lock ⑥ memory rel... | ②④⑥ | general_qa | 140 |
The following is a multiple choice question (with answers).
===Question
What is it about international education, which has been formed and developed since the 1960s, that has become the dominant ideology in the formulation of education policies in developing countries and countries?
===Choices
Education for all
Digit... | Lifelong education | general_qa | 96 |
The following is a multiple choice question (with answers).
===Question
What is the chemical component that gives wood its smooth grain tensile strength?
===Choices
Keratin
Suberin
Cellulose
Chitin
Elastin
Glycerol
Hemicellulose
Collagen
Lignin
Pectin | Cellulose | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
During the French Renaissance, which writer's work was most influenced by Italian literature?
===Choices
Pierre de Lonza
Joakim Dubele
Marguerite de Navarre
François Rabelais | François Rabelais | general_qa | 58 |
The following is a multiple choice question (with answers).
===Question
What is the name of the garden in which people can walk around and enjoy?
===Choices
window box garden
vertical garden
rooftop garden
rock garden
water garden
hydroponic garden
bonsai garden
terrarium garden
container garden
backyard garden | backyard garden | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
The equation $y =A\cos^2\left(2\pi\, nt -2\pi \dfrac{x}{\lambda}\right)$ represents a wave with
===Choices
amplitude $A/2$, frequency $2n$& wavelength $\lambda$
amplitude $A/2$, frequency $n$& wavelength $\lambda/2$
amplitude $A/2$, frequency $n$&... | amplitude $A/2$, frequency $2n$& wavelength $\lambda/2$ | general_qa | 228 |
The following is a multiple choice question (with answers).
===Question
What is the correct position for examining the spine?
===Choices
Sitting
Supine
Fowler's position
Left lateral decubitus
Valsalva maneuver
Right lateral decubitus
Knee-chest position
Prone
Upright with arms elevated
Supine with neck extension | Sitting | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
In order to increase the efficiency of calculation, FFT function is used to calculate cross-correlation in Matlab. How many times does the FFT function need to be called?
===Choices
3
2
5
8
10
6
1
7
9
4 | 3 | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
A man with blood type AB married a woman with blood type A. If the woman's father has blood type O, what genotypes can be expected for their children?
===Choices
$1I^{A}I^{B}:1I^{B}i:1I^{B}I^{B}:1I^{O}i$
$1I^{O}i:1I^{A}i:1I^{B}I^{B}:1I^{A}I^{B}$
$... | $1I^{A}I^{A}:1I^{A}i:1I^{A}I^{B}:1I^{B}i$ | general_qa | 384 |
The following is a multiple choice question (with answers).
===Question
Iggy has a garden with length 234 feet and width 123 feet. Iggy decides to create a sidewalk of constant width around the garden such that the area of the sidewalk is equal to the area of the garden. What is the largest possible distance, in feet, ... | 357 | general_qa | 124 |
The following is a multiple choice question (with answers).
===Question
What is the effect of dissolution of $\mathrm{CaCO_3}$ in seawater on total alkalinity (Alk) and total inorganic carbon (TCO₂) in seawater, respectively?
===Choices
Alk increases and TCO₂ decreases.
Alk remains constant and TCO₂ increases.
Alk rem... | Alk increases and TCO₂ increases. | general_qa | 146 |
The following is a multiple choice question (with answers).
===Question
An Anganwadi worker works for population of
===Choices
300-1000 in plain areas
400-700 in plain areas
300-800 in plain areas
400-900 in plain areas
400-1000 in plain areas
400-820 in plain areas
400-850 in plain areas
400-800 in plain areas
300-90... | 400-800 in plain areas | general_qa | 140 |
The following is a multiple choice question (with answers).
===Question
When the working medium absorbs 50kJ of heat and does 100kJ of work in a certain process, how do the energy and entropy in the working medium change?
===Choices
Internal energy reduction; Entropy increase
Internal energy reduction; Entropy reducti... | Internal energy reduction; Entropy increase | general_qa | 138 |
The following is a multiple choice question (with answers).
===Question
Given positive numbers $a$, $b$, $c$, and $d$, find the minimum value of
$$
S = \frac{ a }{ b+c+d }+\frac{ b }{ a+c+d }+\frac{ c }{ a+b+d }+\frac{ d }{ a+b+c }+\frac{ b+c+d }{ a }+\frac{ a+c+d }{ b }+\frac{ a+b+d }{ c }+\frac{ a+b+c }{ d }
$$
===C... | 40/3 | general_qa | 173 |
The following is a multiple choice question (with answers).
===Question
China's national standards for library cataloging of published books include___ cataloging entries in the bibliographic data section.
===Choices
seven
nine
ten
four
five
eleven
six
eight
twelve
three | six | general_qa | 61 |
The following is a multiple choice question (with answers).
===Question
A 61 year old man undergoes CT scan study of the abdomen for unexplained abdominal distension. Low attenuation intraperitoneal collections with enhancing septae are demonstrated. There is scalloping of the liver border and omental thickening. Which... | Cystadenocarcinoma of the appendix | general_qa | 185 |
The following is a multiple choice question (with answers).
===Question
In the process of T cell development in the thymus, the stage at which TCR is expressed earliest is ( ).
===Choices
Memory T Cells
Naive T cells
Double-negative cells
Mature T cells
Pre-T cell
Progenitor T cells
Effector T Cells
Regulatory T cells... | Double-positive cells | general_qa | 89 |
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