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
It is known that sodium chloride is a cubic crystal with a relative molecular mass of 58.46 and a density of $2.167 \times 10^{3} \, \mathrm{kg} \cdot \mathrm{m}^{-3}$ at room temperature. Try calculating its lattice constant, which is ().
===Choi... | $$
\mathfrak{a}=5. 6 3 \ \overset{\circ} {\mathrm{A}}
$$ | general_qa | 377 |
The following is a multiple choice question (with answers).
===Question
When cultivating Escherichia coli, spontaneous point mutations are mostly caused by ( ).
===Choices
Nitrogen base pair misalignment
Carbon ring aromatic stabilization
Hydrogen ion molecular mispairing
Sulfur atom valence change
Oxygen molecule ele... | Hydrogen atom tautomerization shift | general_qa | 106 |
The following is a multiple choice question (with answers).
===Question
Symptoms of the abortion syndrome are mainly ____.
===Choices
stimulation of taste buds
vagus nerve excitation
acceleration of metabolism
increased sense of smell
enhancement of hearing
heightened sense of touch
improvement of eyesight
induction o... | vagus nerve excitation | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
The present-day Hill radius of Jupiter. Express your answer in terms of the radius of Jupiter, as well as in astronomical units is().
===Choices
$$
4 4 4 4 \ R_{J}
$$
$$
1 0 0 0 \ R_{J}
$$
$$
2 2 2 2 \ R_{J}
$$
$$
3 3 3 3 \ R_{J}
$$
$$
7 7 7 7 \ R... | $$
1 0 0 0 \ R_{J}
$$ | general_qa | 204 |
The following is a multiple choice question (with answers).
===Question
In the development process of Han Dynasty bronze mirrors, the type of bronze mirror that was popular for the longest time is ( )
===Choices
Rectangular Mirror
Oval Mirror
Rhombus Mirror
Cross-shaped Mirror
Circular Mirror
Octagonal Mirror
Heart-sh... | Square Mirror | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
A sample mixture of pure $\mathrm{LiCl}$ and $\mathrm{BaBr_{2}}$ weighing 0.7000 g is treated with 45.15 ml of 0.2017 mol/L $\mathrm{AgNO_3}$ standard solution. The excess $\mathrm{AgNO_3}$ is titrated back using 25.00 ml of 0.1000 mol/L $\mathrm{N... | $$
8 3. 9 4 \%
$$ | general_qa | 287 |
The following is a multiple choice question (with answers).
===Question
If $y_1 = 5 (mm)\ \sin \pi t$ is equation of oscillation of source $S_1$ and $y_2 = 5\ (mm) \sin (\pi t + \pi /6)$ be that of $S_2$ and it takes $1\ sec$ and $1/2\ sec$ for the transverse waves to reach point $A$ from sources $S_1$ and $S_2$ respec... | $$5\ mm$$ | general_qa | 251 |
The following is a multiple choice question (with answers).
===Question
A boost chopper circuit with a filter capacitor of $C=470 \mu F$. It is desired that the output voltage $U_{O}=24 V$ and the output power $P_{O} \geq 12 W$. Try to calculate the minimum inductance $L_{m}$ required to keep the converter operating in... | $$
0. 0 7 \mathrm{m H}
$$ | general_qa | 287 |
The following is a multiple choice question (with answers).
===Question
Consider the differential equation
$$(1 + \mathrm{e}^{\frac{x}{y}}) \, \mathrm{d}x + \mathrm{e}^{\frac{x}{y}} \, \left(1 - \frac{x}{y}\right) \, \mathrm{d}y = 0$$
Which of the following represents the general solution to this differential equation(... | $$
y e^\frac{x} {y}+x=C
$$ | general_qa | 290 |
The following is a multiple choice question (with answers).
===Question
Under Chinese law,A knocked B unconscious, and C, who happened to pass by, saw B unconscious and took B's bag, which contained 5,000 RMB. The actions of A and C constitute ().
===Choices
Separate crimes with similar intent
Joint crime with prior c... | Not constituting joint crime | general_qa | 118 |
The following is a multiple choice question (with answers).
===Question
The valve spring of a certain diesel engine has a mean spring radius $R=59.5\mathrm{mm}$, a spring wire cross-sectional diameter $d=14\mathrm{mm}$, and an effective number of coils $n=5$. The material has an allowable shear stress $\left[\tau\right... | $$
\approx3. 2 1 \times1 0^{8} \mathrm{~ P a}
$$
$$
5 5. 7 \mathrm{~ m m}
$$ | general_qa | 593 |
The following is a multiple choice question (with answers).
===Question
In which year did the famous Taiwanese drama 'In Time with You' (reece 17) first air?
===Choices
2006.5
2008
2004
2002
2007
2003
2011
2001
2009
2005 | 2011 | general_qa | 91 |
The following is a multiple choice question (with answers).
===Question
Given: A thin flat plate measuring $0.2m \times 0.2m$ is placed parallel in a uniform gas flow field created by a wind tunnel. At an airflow velocity of $u_{\infty} = 40m/s$, it is measured with a dynamometer that to keep the plate steady in the ai... | $$240.9W$$ | general_qa | 271 |
The following is a multiple choice question (with answers).
===Question
For horse hemoglobin in water solution at 20° C, D = 6.3 × 10^-7 cm^2 \textbullet s ^-1, s = 4.41 × 10^-13 s , v= 0.749 cm^3g^-1 , \rho = 0.9982 g \textbullet cm^-3 . Calculate the molecular weight.
===Choices
83000 g mol^-1
68000 g mol^-1
67554 g... | 67554 g mol^-1 | general_qa | 207 |
The following is a multiple choice question (with answers).
===Question
The life of the law lies in its implementation, and the authority of the law also lies in its implementation. The Decision of the Central Committee of the Communist Party of China on Several Major Issues Concerning the Comprehensively Promoting the... | Cancel the system of recording the entire law enforcement process, and the law enforcement process does not need to be supervised | general_qa | 312 |
The following is a multiple choice question (with answers).
===Question
What are the necessary preconditions for the formation of a biofilm?
===Choices
'Substance of transport, surface structures for microbial holding and development', 'nutrients essential for microbial growth', 'microorganisms utilized for experiment... | 'Support for action, carrier materials for microbial attachment and growth', 'nutrients needed for microbial growth', 'microorganisms used as inoculants | general_qa | 282 |
The following is a multiple choice question (with answers).
===Question
What is the main polymer used as raw material for nonwoven fabrics commonly used in making N95 masks and eco-friendly shopping bags?
===Choices
Polyethylene
Polyethylene terephthalate
Polyvinyl chloride
Polypropylene
Polystyrene
Polybutylene | Polypropylene | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
A block of mass $m$ is suspended from a series combination of three light springs as shown in figure. If $K_{1} : K_{2} : K_{3} = 1 : 2 : 3$, then find the ratio of elastic potential energies stored by three springs in equilibrium state.
===Choice... | $$3 : 2 : 1$$ | general_qa | 198 |
The following is a multiple choice question (with answers).
===Question
The () of workers belongs to the tangible wear and tear of labor.
===Choices
delegating
depression
dereliction
depreciation
declination
diversion
knowledge aging
ageing
deterioration
designation | ageing | general_qa | 64 |
The following is a multiple choice question (with answers).
===Question
The tumor shows infiltrative growth, but does not metastasize, is referred to as ().
===Choices
Retinoblastoma
Esophageal Carcinoma
Hemangioma
Gastric Adenocarcinoma
Ewing's Sarcoma
Glioblastoma Multiforme
Spermatocytic Tumor
Hepatic Carcinoma
Mul... | Hemangioma | general_qa | 103 |
The following is a multiple choice question (with answers).
===Question
The traditional Chinese medicine that can increase the levels of central norepinephrine (NA) and dopamine (DA) with long-term administration is ( ).
===Choices
Rehmannia, Polygonatum
Scutellaria, Magnolia
Bupleurum, Cinnamon
Coptis, Phellodendron
... | Aconite, Dried Ginger | general_qa | 128 |
The following is a multiple choice question (with answers).
===Question
Solve the integral:
$$
\int \frac{ \cos(x)^3 }{ \sin(x)^9 } \, dx
$$
===Choices
C - (1/3 * (cot(x))^6 + 1/4 * (cot(x))^4 + 1/6 * (cot(x))^8)
C - (1/3 * (cot(x))^6 + 1/4 * (cot(x))^4 + 1/14 * (cot(x))^8)
C - (1/3 * (cot(x))^6 + 1/4 * (cot(x))^4 + 1... | C - (1/3 * (cot(x))^6 + 1/4 * (cot(x))^4 + 1/8 * (cot(x))^8) | general_qa | 403 |
The following is a multiple choice question (with answers).
===Question
What is the second-largest island in the world that is part of Indonesia?
===Choices
Sumatra
New Guinea
Sulawesi
Borneo
Java | New Guinea | general_qa | 48 |
The following is a multiple choice question (with answers).
===Question
A family of three developed chills, fever, intermittent periumbilical pain, and diarrhea in succession one evening. The frequency of bowel movements was 5-10 times per day, with two individuals having watery stools and one having bloody stools, wit... | Vibrio parahaemolyticus food poisoning | general_qa | 205 |
The following is a multiple choice question (with answers).
===Question
Which country did community education really develop after the Second World War?
===Choices
United States
Australia
Denmark
Germany
United Kingdom
Italy
France
Japan
Sweden
Canada | United States | general_qa | 52 |
The following is a multiple choice question (with answers).
===Question
Database recovery is based on the use of dumped redundant data. These dumped redundant packets refer to ( ).
===Choices
Data dictionaries, applications, log files, audit files
Redundant databases, application data, log files
Data dictionary, appli... | Backup copies of log files and databases | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
In a military confrontation game, two countries, A and B, simultaneously choose whether to focus their military efforts on offense or defense. The payoff matrix is shown below:
| | B Chooses Defense | B Chooses Offense |
|---------------------|----... | The game has multiple pure strategy Nash equilibria. | general_qa | 216 |
The following is a multiple choice question (with answers).
===Question
.0324 Faradays (F) liberated .651g of Calcium. What is the atomic weight of Calcium?
===Choices
35.7
60.3
70.9
32.1
40.2
20.1
24.6
Both 40.2 and 40.08 are correct
40.08
50.5 | Both 40.2 and 40.08 are correct | general_qa | 105 |
The following is a multiple choice question (with answers).
===Question
The weathering coefficient of a class of minerals can be determined from the ratio content of detrital minerals in the sediment, and what phenomenon is reflected in the relatively higher content of unstable minerals in the sediment?
===Choices
Str... | Weakening of the weathering rate. | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
Which of the following tree shapes is a manual plastic surgery form?
===Choices
Trunk form
Cascading type
Compact structure
Umbrella pattern
Pyramidal configuration
Spreading silhouette
Happy Shape
Columnar form
Spherical
Stratified Dispersion For... | Spherical | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
Calculate pH of 0.1 M $H_{2}S$ solution (Given $K_{a_{i}}=10^{-7}$ and $K_{a_{2}}=10^{-14})$
===Choices
4
8
7
3
5
None of these
6
1
2
9 | 3 | general_qa | 86 |
The following is a multiple choice question (with answers).
===Question
Two identical sound producing trains are travelling is same direction with velocity 20 m/s and 30 m/s respectively. They are approaching a hill. Find the ratio of reflected frequency heard by both train due to other train. Speed of sound = 300 m/s
... | $$\dfrac{32}{33}$$ | general_qa | 207 |
The following is a multiple choice question (with answers).
===Question
Edema is often observed in cases of prolonged damp-heat, which can lead to dryness damaging the yin. The first choice of treatment is ______.
===Choices
Zhuling Soup
Xiangfu Soup
Fuling San
Danggui Soup
Shensu Decoction
Wuwei Decoction
Qihuang Wan... | Zhuling Soup | general_qa | 99 |
The following is a multiple choice question (with answers).
===Question
Which country is one of the earliest in the world to implement legislative oversight of intelligence agencies through legislation, and is even described by scholars as having the most stringent legislative oversight of intelligence agencies?
===Ch... | United States | general_qa | 75 |
The following is a multiple choice question (with answers).
===Question
Adults' body water accounts for approximately ____% of their body weight.
===Choices
60-70
55-65
25-35
65-75
40-50
70-80
30-40
35-45
45-55
50-60 | 50-60 | general_qa | 91 |
The following is a multiple choice question (with answers).
===Question
Two individuals, $A$ and $B$, plan to travel from point $M$ to point $N$. It is known that the distance between $M$ and $N$ is 15 km. If walking, each person can cover $6 \mathrm{~km}$ per hour. If riding a bicycle, they can travel $15 \mathrm{~km}... | $C$ should depart from $N$ $\frac{3}{11} \mathrm{h}$ before $A$ and $B$ set off from $M$. | general_qa | 623 |
The following is a multiple choice question (with answers).
===Question
The following descriptions of representatives and their works in Russian modernist literature are correct:
I. Bely's (Андрей Белый) most important masterpiece is the novel Petersburg (Петербург), whose protagonist is Apollon Apollonovich Ableukhov ... | I and II and III | general_qa | 335 |
The following is a multiple choice question (with answers).
===Question
The author imaged Jupiter when closest to the Earth last year using his 230 mm aperture, $f10$, Schmidt-Cassegrain telescope with a 170 pixels per millimetre CCD camera having an effective area of $3. 9 \times2. 8 \ \mathrm{m m}$. To increase the i... | $$200$$ | general_qa | 202 |
The following is a multiple choice question (with answers).
===Question
The parallax angle for Sirius is 0.379".Determine the distance modulus for Sirius.
===Choices
$$
- 4. 2 9
$$
$$
- 4. 0 1
$$
$$
- 2. 8 9
$$
$$
- 1. 0 2
$$
$$
- 3. 9 5
$$
$$
- 3. 4 7
$$
$$
- 2. 7 8
$$
$$
- 1. 5 7
$$
$$
- 3. 2 0
$$
$$
- 2. 5 6
$$ | $$
- 2. 8 9
$$ | general_qa | 168 |
The following is a multiple choice question (with answers).
===Question
By which of the following fornula Flow Efficiency can be calculated?
===Choices
$(P_{R}+P_{wf})/(P_{R}-P_{wf})$
$(P_{R}-P_{wf})/(P_{R}+\Delta P_{skin})$
$(P_{R}-P_{wf})/(P_{R}-P_{wf}-\Delta P_{skin})$
$\Delta P_{skin}/(P_{R}-P_{wf}-\Delta P_{skin}... | $(P_{R}-P_{wf}-\Delta P_{skin})/(P_{R}-P_{wf})$ | general_qa | 248 |
The following is a multiple choice question (with answers).
===Question
Land tax is a fee paid by landowners to the state, characterized by being compulsory, gratuitous, and exceeding economic attributes, and it falls under the category of ().
===Choices
Assets
Subsidies
Donations
Dividends
Interest
Mortgages
Utilitie... | Finance | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
In which year was Zhongzhou Investment Holding Co., Ltd. established?
===Choices
1989
1982
1988
1986
1983
1980
1981
1984
1985
1987 | 1984 | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
The earliest music magazine in China was published by _____ in _____.
===Choices
Zhou Zuoren, Chengdu
Lin Yutang, Shenyang
Cai Yuanpei, Hong Kong
Li Shutong, Japan
Chen Duxiu, Shanghai
Guo Moruo, Tianjin
Hu Shi, Guangzhou
Wang Guangqi, Wuhan
Lu Xu... | Li Shutong, Japan | general_qa | 104 |
The following is a multiple choice question (with answers).
===Question
The longitudinal appearance of cotton fiber is characterized by ().
===Choices
Scales
Vertical stripes
Slender form
Natural Ripple
Natural Curls
Natural Curvature
Linear structure
Circular cross-section
Smooth Surface
Natural Grooves | Natural Curvature | general_qa | 62 |
The following is a multiple choice question (with answers).
===Question
In the system shown, the wire connecting two masses has linear mass density of $\dfrac{1}{20}kg/m$. A tuning fork of $50 Hz$ is found to be in resonance with the horizontal part of wire between pulley and block
===Choices
1 : \sqrt{2} - \frac{1}{2... | $$1 :\sqrt{2}-1$$ | general_qa | 173 |
The following is a multiple choice question (with answers).
===Question
When organizing the "Edge One Two" attack tactic, what position should the setter stand at?
===Choices
10
4
2
6
7
3
8
5
1
9 | 2 | general_qa | 56 |
The following is a multiple choice question (with answers).
===Question
Which university conducted the 2010 study that suggested cloud seeding with materials like silver iodide and frozen carbon dioxide had little impact on precipitation?
===Choices
University of California, Santa Cruz
University of California, Rivers... | Tel Aviv University | general_qa | 106 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements about the changes in structural and functional characteristics during the development of an ecosystem from its juvenile stage to its mature stage is correct?
===Choices
The resistance and resilience of a mature ec... | In developing ecosystems, species diversity is relatively low, and the ecological niches of each species are relatively broad. | general_qa | 239 |
The following is a multiple choice question (with answers).
===Question
Compared to cast iron radiators, steel radiators have an absolute advantage in high-rise building heating systems in terms of ____.
===Choices
Water Capacity
Installation Speed
Efficiency
Pressure Bearing
Heat Storage
Noise Levels
Maintenance Cost... | Pressure Bearing | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
If $\tan(\theta) = \sqrt{x^2 - 1}$, find $\sec(\theta) + \tan(\theta)$.
===Choices
x - sqrt(x^2 + 1)
x + sqrt(x^2 - 1)
x - sqrt(x^2 - 1)
x + sqrt(x^2 + 1) | x + sqrt(x^2 - 1) | general_qa | 87 |
The following is a multiple choice question (with answers).
===Question
If the interaction energy of a crystal can be expressed as
$$
u(r) = -\frac{\alpha}{r^m} + \frac{\beta}{r^n}
$$
Given $m = 2, n = 10, r_0 = 3 \, \text{Å}, \, W = 4 \, \text{eV}$, determine the values of $\alpha$ and $\beta$.
===Choices
$$
\alpha=
... | $$
\alpha=
4 5 \, \mathrm{e V} \cdot\AA,
$$
$$
\beta=5. 9 0 \times1 0^{-1 6} \mathrm{\, e V} \cdot\AA
$$ | general_qa | 688 |
The following is a multiple choice question (with answers).
===Question
According to Macnamara's (2005) pyramid of evaluation, at which stage are opinion polls most useful?
===Choices
Outcomes
Input-Output
Process
Outputs
Impact
Evaluation planning
Feedback
Inputs
Pre-evaluation
Outtakes | Outtakes | general_qa | 68 |
The following is a multiple choice question (with answers).
===Question
What are the four keywords of the paper "New Avenues and Challenges in Semantic Map Research"?
===Choices
semantic maps, inference, graph, emotions
semantic maps, inference, graph, sentiment
semantic maps, inference, graph, emotional states
semant... | semantic maps, inference, graph, emotions | general_qa | 129 |
The following is a multiple choice question (with answers).
===Question
When using a simple method for calculation, the approach to adjust the angular closure error for the conductor is to reverse the sign of the angular closure error and then ().
===Choices
Distribute inversely along the number of angles
Distribute p... | Distribute evenly according to the number of angles | general_qa | 136 |
The following is a multiple choice question (with answers).
===Question
The existing solution is composed of 10 kg of solute A and 120 kg of original solvent B. It is extracted and separated using 150 kg of pure solvent S. Components B and S can be considered completely immiscible. Under the operating conditions, the d... | In a three-stage counter-current extraction, the final raffinate composition is the lowest, indicating the best extraction efficiency. The three-stage cross-current extraction is next, while single-stage extraction is the least effective. | general_qa | 448 |
The following is a multiple choice question (with answers).
===Question
A particle of mass m moves in conservative force field along x axis where the potential energy U varies with position coordinate x as $ U = U_0 ( -cos ax) , U_0 $ and a being positive constants .which of the following statements is true regarding... | It's maximum kinetic energy is $ U_0 $ | general_qa | 227 |
The following is a multiple choice question (with answers).
===Question
Assertion (A) : A large soap bubble expands while a small bubble shrinks, when they are connected to each other by a capillary tube.Reason (R) : The excess pressure (due to surface tension) inside a spherical bubble is more due to its small volume.... | Both Assertion (A) and Reason (R) are true and the Reason (R) is correct explanation of the Assertion(A) . | general_qa | 328 |
The following is a multiple choice question (with answers).
===Question
What is the NMR frequency of 31P in a 20.0 T magnetic field?
===Choices
120.2 MHz
190.3 MHz
239.2 MHz
345.0 MHz
54.91 MHz
310.2 MHz
2167 MHz
275.0 MHz
400.0 MHz
Both 500.5 MHz and 190.3 MHz are correct | 345.0 MHz | general_qa | 119 |
The following is a multiple choice question (with answers).
===Question
Which of the following conditions can cause the area of dullness between the anterior borders of the two lungs to decrease?
===Choices
Emphysema
Dilated cardiomyopathy
Left ventricular hypertrophy
Aortic aneurysm
Bronchial asthma
Pericardial effus... | Emphysema | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
A mother of two kids both doing bad in school presents with bilateral headache that worsens with emotional stress. What is the most likely diagnosis?
===Choices
Chronic episodic migraine
Chronic episodic tension-type headache
Migraine
Tension head... | Tension headache | general_qa | 99 |
The following is a multiple choice question (with answers).
===Question
Given a point $P$ in the coordinate plane, let $T_k(P)$ be the $90^\circ$ rotation of $P$ around the point $(2000-k,k)$ . Let $P_0$ be the point $(2007,0)$ and $P_{n+1}=T_n(P_n)$ for all integers $n\ge 0$ . If $P_m$ has a $y$ -coordinate of $433$ ,... | 439 | general_qa | 164 |
The following is a multiple choice question (with answers).
===Question
During the rainy season, when borrow pits are used for filling the road embankment, the minimum distance from the fill slope toe to the borrow pit and the maximum depth for longitudinal borrow pits in plain areas are respectively _____.
===Choices... | 3 meters, 1 meter | general_qa | 131 |
The following is a multiple choice question (with answers).
===Question
Approximately how many pounds of force are required to pull the timer knob from the timer of a LUU-2B/B aircraft parachute flare?
===Choices
30
20
50
55
10
15
45
25
40
35 | 30 | general_qa | 75 |
The following is a multiple choice question (with answers).
===Question
In what year was the beetle species Conalia melanops described?
===Choices
1949
1944
1941
1950
1946
1943
1948
1945
1947
1942 | 1946 | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
In 1702, ______was established in London by Mailrite, becoming the UK's first daily newspaper.
===Choices
City Gazette
Evening Chronicle
Westminster Post
Morning Courier
Village Herald
Globe Times
Daily News
London Standard
Britannia Journal
Royal... | Daily News | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
Which statements are correct:(1) Bond angle of ${ PF }_{ 3 }>P{ Cl }_{ 3 }$. (2) Bond angle of $P{Cl}_{3}\lt P{ Br }_{ 3 }$. (3) ${ \left( { CH }_{ 3 } \right) }_{ 3 }N$ is pyramidal whereas ${ \left( Si{ H }_{ 3 } \right) }_{ 3 }N$ is planar.(4)... | $$1, 2, 3, 4, 5$$ | general_qa | 318 |
The following is a multiple choice question (with answers).
===Question
For the reaction :
$$C{H}_{4}\left(g\right) + {H}_{2}O\left(g\right) \rightleftharpoons CO\left(g\right) + 3{H}_{2}\left(g\right), \Delta H = +ve$$
Which statement is not correct?
===Choices
Addition of an inert gas constant pressure ... | Addition of an inert gas at constant volume shifts the reaction towards reactants | general_qa | 242 |
The following is a multiple choice question (with answers).
===Question
Lucille Ball's insistence that she, rather than CBS, own the rights to her television program set the stage not only for reruns but also for().
===Choices
Syndication
Licensure
Broadcasting
Franchising
Telecasting
Serialization
Commercialization
M... | Syndication | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
Find the number of positive integers $n$ such that $n<10^6$ , $n$ only contains the digits $9, 1,$ and $0$ , and $n$ is divisible by $7$ .
===Choices
103
108
106
101
109
100
105
102
104
107 | 104 | general_qa | 105 |
The following is a multiple choice question (with answers).
===Question
Two circles $\omega_1,\omega_2$ radius $28,112$ respectively intersect at $P,Q$ . $A$ is on $\omega_1$ and $B$ on $\omega_2$ such that $A,P,B$ are collinear. Tangents to $\omega_1,\omega_2$ at $A,B$ respectively meet at $T$ . Suppose $\angle AQT=\a... | 107 | general_qa | 184 |
The following is a multiple choice question (with answers).
===Question
Let $F_{1} \left(x \right) and\ F_{2} \left(x \right)$be two distribution functions, Its corresponding probability density is$f_{1} \left( x \right), f_{2} \left( x \right)$, and if $f_{1} \left( x \right), f_{2} \left( x \right)$ is a continuous f... | $$
f_{1} ( x ) F_{2} ( x )+f_{2} ( x ) F_{1} ( x )
$$ | general_qa | 324 |
The following is a multiple choice question (with answers).
===Question
Which of the following correctly describe the differences between the circulation formula of capital and the circulation formula of money? (Choose the option that includes all the correct statements)
I. The former uses goods as the medium, while th... | I, IV, and V | general_qa | 219 |
The following is a multiple choice question (with answers).
===Question
A centrally compressed brick column has cross-sectional dimensions of $370 \mathrm{mm} \times 490 \mathrm{mm}$. It is constructed using MU10 grade clay bricks and $\mathbf{M} 2.5$ mixed mortar. The design value of axial pressure applied at the base... | $$181.80kN$$ | general_qa | 255 |
The following is a multiple choice question (with answers).
===Question
The day or night end of a MK 124 MOD 1 signal is marked in which of the following ways?
===Choices
The case is equipped with a digital interface that identifies the smoke (day) and flare (night) end.
The case has 3 raised beads arounds its circumf... | The case has 3 raised beads arounds its circumference on the flare (night) end, & a label adhered to outer surface of the case identifies TE smoke (day) & flare (night) end | general_qa | 279 |
The following is a multiple choice question (with answers).
===Question
In which of the following conditions does a diminished first heart sound not occur?
===Choices
Aortic regurgitation
Myocardial infarction
Myocarditis
Mitral stenosis
Mitral regurgitation
Aortic stenosis
Hypertrophic cardiomyopathy
Tricuspid regurg... | Mitral stenosis | general_qa | 91 |
The following is a multiple choice question (with answers).
===Question
On the $xy$ plane, there is a regular $n$-sided polygonal wire loop. The center of the loop is at the origin, and the distance from the vertices of the $n$-sided polygon to the origin is $R$. The current in the wire is $I$. The magnetic induction a... | $$\frac{3\sqrt{3}\mu_0I}{2\pi R}e_α$$ | general_qa | 312 |
The following is a multiple choice question (with answers).
===Question
The reason for using direct coupling in integrated amplifier circuits is ( ).
===Choices
Difficult to manufacture large-capacity capacitors
To reduce the input impedance levels
Convenient for design
Improving the amplifier's visual appeal
Enhancin... | Difficult to manufacture large-capacity capacitors | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
At a certain temperature,the following reactions have the equilibrium constant as shown below:
$$\begin{array}{l}S\left( s \right) + {O_2}S \mathbin{\lower.3ex\hbox{$\buildrel\textstyle\rightarrow\over{\smash{\leftarrow} phantom{_{ box to.5ex{ ss}}... | $$4 \times {10^{23}}$$ | general_qa | 453 |
The following is a multiple choice question (with answers).
===Question
A 6 year old child has fever, excessive sweating, and skin lesions characterized by flaking of skin. Oral changes include a metallic taste and ulcerative stomatitis. The child has been using teeth whitening gels bought from market since one month. ... | Acrodynia | general_qa | 107 |
The following is a multiple choice question (with answers).
===Question
A pendulum clock keeps correct time at $20^0$C. The correction to be made during summer per day where the average temperature is $40^0$C, ($lpha = 10^{-5}/^0$C) will be :-
===Choices
5.64 sec
8.64 sec
6.44 sec
4.54 sec
5.84 sec
5.44 sec
6.54 sec
... | 5.64 sec | general_qa | 134 |
The following is a multiple choice question (with answers).
===Question
What is the importance of the Daily Cycle in modern Chinese newspaper history?
===Choices
a news outlet recognized for daily weather updates
a newspaper with political commentary as its soul
a publication prominent for entertainment and leisure
a ... | a newspaper with political commentary as its soul | general_qa | 115 |
The following is a multiple choice question (with answers).
===Question
Force acting on a particle moving in a straight line varies with the velocity of the particle as F = KV, Where K is constant. The work done by this force in time t is (initial velocity is 1 m/s)
===Choices
\dfrac { m }{ 7k } \left[ e^ \{ \dfrac {... | $$ \dfrac { m }{ 2k } \left[ e^ \{ \dfrac { k }{ 2m } t\} -1 \right] $$ | general_qa | 429 |
The following is a multiple choice question (with answers).
===Question
______ refer to fossils that are formed from species of organisms which had a short lifespan, fast evolution, wide distribution, and a large number of individuals.
===Choices
Universal fossils
Classic fossils
Prime fossils
Pinnacle fossils
Core fo... | Standard fossils | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
Which of the following is not an ultrasonic manifestation of fetal duodenal atresia?
===Choices
The small anechoic area in the double bubble sign is the duodenum.
Thickened folds visible in the stomach chamber
Colon dilation
Increased echogenicity... | Colon dilation | general_qa | 130 |
The following is a multiple choice question (with answers).
===Question
The coaxial line consists of two long coaxial metal cylinders with inner and outer radii of 1 mm and 7 mm, respectively. The thickness of the cylinders can be ignored, and the relative permeability of the medium between the cylinders is $\mu_{\math... | $$
1. 9 5 \times1 0^{-3} \mathrm{~ J}
$$ | general_qa | 356 |
The following is a multiple choice question (with answers).
===Question
Suppose the expression for the open-loop frequency response of a certain integrated operational amplifier is
$$
\dot{A}_{*}=\frac{10^{3}}{\left( 1+\mathrm{j} \, \frac{f}{f_{\mathrm{H1}}} \right) \left( 1+\mathrm{j} \, \frac{f}{f_{\mathrm{H2}}} \rig... | $$
1 8 ~ \mathrm{d B}
$$ | general_qa | 373 |
The following is a multiple choice question (with answers).
===Question
China has two phrases that describe different perceptions of time, namely "each day feels like a year" and "time flies like an arrow". What does this indicate?
===Choices
The concept of time in humans is relative.
The importance of time in human p... | The concept of time in humans is relative. | general_qa | 142 |
The following is a multiple choice question (with answers).
===Question
What is the kinetic energy operator of a one-dimensional free particle?
===Choices
$$
\frac{\hbar^{2}} {2 m^{2}} \frac{d^{2}} {d x}
$$
$$
- \frac{\hbar^{2}} {2 m} \frac{d} {d x}
$$
$$
\frac{\hbar^{2}} {2} \frac{d^{2}} {d x^{2}}
$$
$$
- \frac{\hbar... | $$
- \frac{\hbar^{2}} {2 m} \frac{d^{2}} {d x^{2}}
$$ | general_qa | 318 |
The following is a multiple choice question (with answers).
===Question
What system did Thomas Edison begin to develop in 1874?
===Choices
Multiplex telegraph system with simultaneous and alternating capabilities
Multiplex telegraph system
Multiplex telegraph system with alternating transmission
Multiplex telegraph sy... | Multiplex telegraphic system | general_qa | 126 |
The following is a multiple choice question (with answers).
===Question
Among the following four types of couplings, which one has a good compensatory effect on comprehensive displacement?
===Choices
Gear coupling.
Fluid coupling.
Diaphragm coupling.
Sleeve coupling.
Disc coupling.
Rigid coupling.
Jaw coupling.
Flexib... | Gear coupling. | general_qa | 75 |
The following is a multiple choice question (with answers).
===Question
Which hydraulic model is used to simulate the flow of water in open channels?
===Choices
HEC-RAS Simulation
Bernoulli's Principle
Napier-Stokes Formula
Manning's Equation
Reynold's Flow Model
St. Venant Equations
Darcy-Weisbach Method
Chezy's Flow... | Manning's Equation | general_qa | 96 |
The following is a multiple choice question (with answers).
===Question
The sedimentation coefficient $S$ and diffusion coefficient $D$ of hemoglobin in water, corrected to the values at $293 \mathrm{~K}$, are $4.41 \times 10^{-13} \, \mathrm{s}$ and $6.3 \times 10^{-7} \, \mathrm{m^{2} \cdot s^{-1}}$respectively. At... | 6.75 | general_qa | 252 |
The following is a multiple choice question (with answers).
===Question
Using a Geiger-Müller counter to measure
$$
\mathrm{Ra^{223}}
$$
and an unknown radioactive isotope, the readings show 9000 counts per minute. Measurements taken five and ten days later show 4517 counts per minute and 2509 counts per minute, respec... | $$
\mathrm{R a}^{224}
$$ | general_qa | 244 |
The following is a multiple choice question (with answers).
===Question
Calculate the surface gravitational acceleration and escape speed of a 1.4-solar-mass neutron star with a radius of 10 km.
===Choices
$$
8. 5 \times1 0^{1 0} \, \mathrm{m} / \mathrm{s}^{2}
$$
$$
2. 8 \times1 0^{1 0} \, \mathrm{m} / \mathrm{s}^{2}
... | $$
1. 9 \times1 0^{1 2} \, \mathrm{m} / \mathrm{s}^{2}
$$ | general_qa | 373 |
The following is a multiple choice question (with answers).
===Question
Some keys on the keyboard are modifier keys for key events on other keys, such as Shift, CapsLock, and Ctrl. How does SimpleGUITk handle modifier key press events?
===Choices
Affects only the numeric keys - for example, the Shift key works only wh... | No effect whatsoever - for example, pressing the Shift key will not create an event nor alter the behavior of other events. | general_qa | 298 |
The following is a multiple choice question (with answers).
===Question
If the undirected graph G(V,E) contains 7 vertices, what is the minimum number of edges required to ensure that the graph G is connected in all cases?
===Choices
8
10
6
21
7
9
12
11
16
15 | 16 | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
Which of the following is characteristic of scholasticism?
===Choices
Deep empirical skepticism
Broad metaphysical exploration
Strong existential questioning
Minor religious tolerance
Profound spiritual enlightenment
Purely scientific validation
E... | Extreme theological dogmatism | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
A drop of water with a diameter of 0.12 in. is surrounded by stillair at 78°F. The air has water vapor of partial pressure 0.01037 atm. Determine the time necessary for the drop to evaporateat a pressure of 1 atm.
===Choices
0.75 hr
2.3 hr
3.0 hr
... | 2.3 hr | general_qa | 129 |
The following is a multiple choice question (with answers).
===Question
The Master said: 'If in the morning I hear the Way, in the evening I may die content.' (The Analects, Chapter 4: Li Ren) What does the 'Way' refer to here?
===Choices
the principle of things as they exist
the moral law
the principle of things as t... | the principle of things as they ought to be | general_qa | 121 |
The following is a multiple choice question (with answers).
===Question
Given the open-loop transfer function of a unit negative feedback system as $G_0(s) = \frac{K_0}{s(s+3)(s+9)}$, if the resonant peak of the system is $M_r = 1.7$, determine the value of $K_0$.
===Choices
$K_0 = 60.20$
$K_0 = 65.34$
$K_0 = 65.97$
$... | $K_0 = 65.34$ | general_qa | 203 |
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