problem stringlengths 145 4.09k | solution stringlengths 1 1.29k | task_type stringclasses 1
value | problem_tokens int64 36 895 |
|---|---|---|---|
The following is a multiple choice question (with answers).
===Question
The characteristics of cargo transport are (), (), () and ().
===Choices
The universality of objects, the timeliness of transportation, directionality of transportation, the complexity of transportation organization
The uniformity of objects, the ... | The universality of objects, the timeliness of transportation, directionality of transportation, the complexity of transportation organization | general_qa | 248 |
The following is a multiple choice question (with answers).
===Question
Show how to approximate the required work by a Riemann sum. Then express the work as an integral and evaluate it. A leaky 10-kg bucket is lifted from the ground to a height of $12 \mathrm{~m}$ at a constant speed with a rope that weighs $0.8 \mathr... | 3857 $\mathrm{J}$ | general_qa | 239 |
The following is a multiple choice question (with answers).
===Question
In photonics, the temperature sensitivity of a Fiber Bragg Grating (FBG) can be compensated by:
===Choices
using shorter fiber lengths
employing special grating design
increasing ambient humidity
increasing the bending of the fiber
applying a ther... | employing special grating design | general_qa | 101 |
The following is a multiple choice question (with answers).
===Question
If 100 mole of $H_2O_2$ decompose at 1 bar and 300 K, the work done (kJ) by one mole of $O_2(g)$ as it expands against 1 bar pressure is
$$2H_2O_2(l) \rightleftharpoons 2H_2O(l) + O_2(g)$$
($R = 8.3 JK^{-1}mol^{-1}$)
===Choices
240.00
497.50
502.... | 498.00 | general_qa | 187 |
The following is a multiple choice question (with answers).
===Question
When a train travels on a railroad, it experiences a jolt every time it passes a junction, causing the carriage to oscillate up and down on the springs. Assuming each section of the track is 12.5m long, each spring on the carriage bears a weight of... | $$
8 8 ( \mathrm{m / s} )
$$ | general_qa | 302 |
The following is a multiple choice question (with answers).
===Question
It is known that the state equations and output equation for a continuous, causal system can be represented as:
$$
\left\{
\begin{aligned}
\dot{\lambda}_1(t) &= \lambda_1(t) + x(t) \\
\dot{\lambda}_2(t) &= \lambda_1(t) - 3\lambda_2(t)
\end{aligned}... | $-1/[4(s+3)]$ | general_qa | 232 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements about oil-based substrates is incorrect ( ).
===Choices
Silicone can be combined with other oil-based matrices to make protective ointments
Beeswax is used to increase the water content in ointments
Stearic acid i... | Lanolin forms an O/W emulsion after absorbing water | general_qa | 158 |
The following is a multiple choice question (with answers).
===Question
In an existing demand-paged system, the page table is stored in registers. If there is an available empty page or the replaced page has not been modified, it takes $8\mu s$ to handle a page fault interrupt; if the replaced page has been modified, t... | 6. 1 % | general_qa | 198 |
The following is a multiple choice question (with answers).
===Question
The three views of the report are ( ).
===Choices
Data entry view, layout view, and design preview view
Datasheet View, Layout Preview View, and Design View
Design preview, report preview, and data sheet view
Report view, print layout view, and da... | Design view, print preview view, and layout preview view | general_qa | 145 |
The following is a multiple choice question (with answers).
===Question
A pendulum which has a period of 1 s in London, where g = 32.200 ft\bullets^-2, is taken to Paris, where it is found to lose 20 s per day. What is the value of g in Paris?
===Choices
32.150 ft\bullets^-2
32.300 ft\bullets^-2
31.800 ft\bullets^-2
3... | 32.185ftullets^-2 | general_qa | 200 |
The following is a multiple choice question (with answers).
===Question
A $1 \mathrm{~m}^{3}$ adiabatic container is filled with air at the same pressure as the standard atmospheric pressure outside, but the wall of the container has a crack. If the container is slowly heated from 0°C to 20°C, how much heat is absorbed... | $$4.7kJ$$ | general_qa | 252 |
The following is a multiple choice question (with answers).
===Question
A 60-year-old woman presents with swelling of the gingiva and occlusal discomfort in the upper left posterior teeth for 2 weeks. She had a history of pain from cold and hot stimuli and nighttime pain 1 year ago but did not receive treatment. Examin... | Periodontal-endodontic combined lesion | general_qa | 217 |
The following is a multiple choice question (with answers).
===Question
Mandibular branch of trigeminal nerve supplies all except
===Choices
Stylohyoid
Anterior belly of digastric
Mylohyoid
Palatoglossus
Tensor veli palatine
Tensor tympani
Stylopharyngeus | Palatoglossus | general_qa | 75 |
The following is a multiple choice question (with answers).
===Question
The social structure is made up of a series of positions arranged in high and low ranks, and what is each position called?
===Choices
Social order
Group standing
Social class
Social level
Social status
Member function
Community role
Social rank
So... | Social status | general_qa | 71 |
The following is a multiple choice question (with answers).
===Question
In the one-dimensional steady heat transfer process, the thermal resistance of each heat transfer link is 0.01K/W, 5K/W and 100K/W, respectively, so the heat transfer link with thermal resistance of () can achieve the best effect by adopting heat t... | 100K/W | general_qa | 129 |
The following is a multiple choice question (with answers).
===Question
In China, those who obtain an engineering bidding agency qualification certificate through deceit, bribery, or other improper means should be subject to criminal penalties. Additionally, their __________ should be reviewed before deciding whether t... | qualification | general_qa | 84 |
The following is a multiple choice question (with answers).
===Question
What was the date, month, and year when "Selective Availability" was discontinued as a result of the 1996 executive order, allowing civilian users to receive a non-degraded signal globally?
===Choices
2 May 1996
2 May 2001
2 May 2000
2 May 2004
2 ... | 2 May 2000 | general_qa | 137 |
The following is a multiple choice question (with answers).
===Question
Patient, female, 67 years old, has had Parkinson's disease for 6 years and has a Yahr staging rating of grade IV and her ability to perform activities of daily living is staged as ___.
===Choices
sixth phase
zero level
seventh stage
first stage
fo... | second phase | general_qa | 94 |
The following is a multiple choice question (with answers).
===Question
The most applicable assessment scale for screening and evaluating debilitating risk in nondisabled older adults is__
===Choices
Comprehensive Geriatric Assessment Form
Basic Old Age Checkup List
Clinical Frailty Scale
Stability Risk Measure Chart
... | Weakness Phenotype Table | general_qa | 97 |
The following is a multiple choice question (with answers).
===Question
Which is the correct statement about the setback contact position?
===Choices
Beginning from the occlusal alignment position, the mandible is moved backward and upward about 1 mm, the anterior teeth do not contact, and the cuspal rims of the poste... | Starting from the cuspal interlocking position, the mandible is moved backward and downward about 1 mm, the anterior teeth do not contact, and the cuspal bevels of the posterior teeth are partially contacted | general_qa | 446 |
The following is a multiple choice question (with answers).
===Question
The earliest jawed fish was discovered in strata dating back 415 million years and belongs to the ancestral placoderm lineage of cartilaginous coloration. This species is considered an intermediate link in the evolutionary chain between cartilagino... | Hard-ossified jawbone originating from the dermis | general_qa | 176 |
The following is a multiple choice question (with answers).
===Question
Li Yannian, the highest leader of the music office during the Han Dynasty, was granted the title for his "innate understanding of music and proficiency in singing and dancing." He created "New Sounds of Twenty-Eight Explanations" based on the music... | Xie Lü Duwei | general_qa | 160 |
The following is a multiple choice question (with answers).
===Question
In what city and state were the vocals of the main show and theme song for "BraviSEAmo!" recorded?
===Choices
Anaheim, California
Burbank, California
San Francisco, California
Santa Monica, California
Hollywood, California
San Diego, California
Lo... | Burbank, California | general_qa | 92 |
The following is a multiple choice question (with answers).
===Question
Rod $AB$, which is 10 cm long, undergoes planar motion with accelerations at both endpoints directed toward each other along the rod. Given $a_{A} = 10 \ \mathrm{cm/s^{2}}$ and $a_{B} = 20 \ \mathrm{cm/s^{2}}$, what are the angular velocity and ang... | $$\sqrt{3} \mathrm{~ r a d / s, ~} 0$$ | general_qa | 307 |
The following is a multiple choice question (with answers).
===Question
What is the formula for calculating the total carbonate concentration $\Sigma\mathrm{CO}_2$?
===Choices
[CO₂] + 2[H₂CO₃] + [HCO₃⁻]
[CO₂] + [HCO₃⁻] + [CO₃²⁻]
[CO₂] + 2[H₂CO₃] + [CO₃²⁻]
[CO₂] + [H₂CO₃] + [CO₃²⁻]
[CO₂] + 2[CO₃²⁻] + [HCO₃⁻]
[CO₂] + [H... | [CO₂] + [HCO₃⁻] + [CO₃²⁻] | general_qa | 248 |
The following is a multiple choice question (with answers).
===Question
Suppose that the Tunguska event was caused by an asteroid colliding with Earth. Assume that the density of the object was 2000 kg $\mathrm{m}^{-3}$ and that it exploded above the surface of the planet traveling at a rate equal to Earth's escape vel... | 12m | general_qa | 147 |
The following is a multiple choice question (with answers).
===Question
In a parallel plate capacitor with plate separation $'d'$, when a potential difference $v$ is across the plates, electrons are emitted with negligible velocity but they are accelerated towards the positive plate creating small electric current. Whe... | $$\dfrac{mE}{2eB^{2}}\left(1-\cos \dfrac{eB}{m}t\right)$$ | general_qa | 429 |
The following is a multiple choice question (with answers).
===Question
Vehicle speed $u=20m/s$, road roughness coefficient $Gq (n0)=2.56 × 10 ^ {-4} m ^ {3}$, reference spatial frequency $n0=0.1m ^ {-1}$, what is the vertical velocity power spectral density of the road surface?
===Choices
0.0004
0.0006
0.0002
0.0008
... | 0.0001 | general_qa | 154 |
The following is a multiple choice question (with answers).
===Question
The given system equation is $y ( t )=f^{2} ( t ) \! \cdot\! u ( t )$, then the system is ( ).
===Choices
Nonlinear time-varying system
Linear time-varying system
Linear time-invariant system
Nonstatic linear time-varying system
Static linear time... | Nonlinear time-varying system | general_qa | 127 |
The following is a multiple choice question (with answers).
===Question
The potential energy of a $1kg$ particle free move along the x-axis is given by
$$V(x)=\left( \cfrac { { x }^{ 4 } }{ 4 } -\cfrac { { x }^{ 2 } }{ 2 } \right) J$$
The total mechanical energy of the particle $2J$. Then, the maximum speed (in m/s) i... | $$2$$ | general_qa | 159 |
The following is a multiple choice question (with answers).
===Question
A 36-year-old male patient began suspecting his wife of improper conduct six months after their marriage at age 23. They frequently argued, and after hitting his wife, he would say to her: "I don't believe it either, but voices in my ears tell me y... | Epileptic psychotic disorder | general_qa | 256 |
The following is a multiple choice question (with answers).
===Question
Using the 2FSK method to transmit binary digits over a transmission channel with an equivalent bandwidth of $2400 Hz$. The frequencies of the 2FSK signals are \( $f_{1} = 980 \, \text{Hz}$ \) and \( $f_{2} = 1580 \, \text{Hz}$ \), with a symbol rat... | $$
1. 7 \times1 0^{-4}
$$ | general_qa | 324 |
The following is a multiple choice question (with answers).
===Question
Leaves or stipules modified into thorn-like structures, are referred to as ( ).
===Choices
Leaf Scroll Beard
Root Spikes
Petal Thistles
Leaf Thorns
Glume
Scale leaves
Stem Barbs
Flower Prickles
Foliar stalk
Leaf Spines | Leaf Spines | general_qa | 77 |
The following is a multiple choice question (with answers).
===Question
The inspiratory pressure difference $p_{in}$ that the lung can generate is about 86 torr. What would be the absolute maximum depth at which a person could breathe through a snorkel device? (A safe depth is only about half this maximum, since lung v... | $$
1 1 7 \; \mathrm{c m \; f o r \; t h e \; l u n g s}
$$ | general_qa | 428 |
The following is a multiple choice question (with answers).
===Question
Which of the following ecological environment issues is one of the main ecotoxicological effects that leads to the accumulation of heavy metals in organisms?
===Choices
Rapid Coastal Erosion
Increased Greenhouse Gases
Persistent Organic Pollutants... | Acid Rain | general_qa | 99 |
The following is a multiple choice question (with answers).
===Question
Bacteria preferentially use glucose as a carbon source, and only after glucose is depleted will they induce the production of enzymes that metabolize other sugars. This phenomenon is called ( ).
===Choices
Decomposition inhibition function
Cellula... | Decomposition inhibition function | general_qa | 108 |
The following is a multiple choice question (with answers).
===Question
Where does the fracture of the tension bolt occur most often?
===Choices
The middle of the shank away from threads
The lower section near the thread end
The smooth area far from the bolt head
The end furthest from the head attachment
The shank mid... | The threaded part close to the nut support surface | general_qa | 118 |
The following is a multiple choice question (with answers).
===Question
Who detailed the wage fund theory in a publication from 1848?
===Choices
Adam Smith
Thomas Malthus
James Stuart Mill
David Ricardo
James Mill
David Mill
John Stuart Mill | John Stuart Mill | general_qa | 57 |
The following is a multiple choice question (with answers).
===Question
Lin Daiyu in A Dream of Red Mansions moves steadily and slowly, observes things meticulously, is sensitive and suspicious, is lonely and anxious, and experiences deep and lasting emotions. According to Pavlov's theory of types of higher neural acti... | Inhibitory type | general_qa | 117 |
The following is a multiple choice question (with answers).
===Question
$0.5\ mol\ NaCl$ is dissolved in $500\ g\ H_{2}O$. Then determine freezing point and boiling point of solution :
Given ($K_{f})_{H_{2}O}=1.8\ K\ kg/mol$
($K_{b})_{H_{2}O}=0.5\ K\ kg/mol$
===Choices
$$-3.6^{o}C,\ 100^{o}C$$
$$-1.8^{o}C,\... | $$-1.8^{o}C,\ 100.5^{o}C$$ | general_qa | 298 |
The following is a multiple choice question (with answers).
===Question
Let $F(x)$ be a polynomial such that $F(6) = 15$ and
$$\frac{F(3x)}{F(x+3)} = 9-\frac{48x+54}{x^2+5x+6}$$
for $x \in \mathbb{R}$ such that both sides are defined. Find $F(12)$ .
===Choices
78
63
60
64
66
72
54
69
75
65 | 66 | general_qa | 133 |
The following is a multiple choice question (with answers).
===Question
Which of the following improper integrals is convergent?
===Choices
\\( \\int_0^{ + \\infty } { { 1 \\over {1 + {x^4}}}dx} \\)
\int_0^{ + \infty } { { 1 \over {1 + {x^4}}}dx}
\int_0^{ + \infty } { { 1 \over {1 + {x^1}}}dx}
\( \int_0^{ + \infty } {... | \( \int_0^{ + \infty } { { 1 \over {1 + {x^2}}}dx} \) | general_qa | 309 |
The following is a multiple choice question (with answers).
===Question
The intricate designs of "Jingtailan" porcelain are characteristic of which dynasty?
===Choices
Xia Dynasty
Liao Dynasty
Song Dynasty
Han Dynasty
Qing Dynasty
Sui Dynasty
Jin Dynasty
Tang Dynasty
Yuan Dynasty
Ming Dynasty | Qing Dynasty | general_qa | 71 |
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