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
NOx produced by combustion can be categorized based on its formation pathway into thermal NOx, fuel NOx, and ______ NOx.
===Choices
primary
catalytic
delayed
instantaneous
prompt
rapid
tertiary
reactive
controlled
secondary | prompt | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
Which of the following product categories best complement the product type kick scooter?
===Choices
sport helmet
pistol holster
sport target
ice cooler
safety goggles
safety gloves | sport helmet | general_qa | 51 |
The following is a multiple choice question (with answers).
===Question
The following are representative figures of human capital theory ( ):I. Adam SmithII. Alfred MarshallIII. Gary BeckerIV. Theodore SchultzV. James Heckman
===Choices
I,IV,V
III,IV
I,II,V
IV,V
III,IV,V
II,IV,V
II,III,IV
I,III,V
I,III,IV
II,III,V | III,IV | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
In which year was the term 'ecological fallacy' first coined?
===Choices
1954
1949
1951
1948
1952
1947
1956
1953
1955
1950 | 1950 | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
Where in the balance sheet does each of the following belong? (A) Taxes payable (B) Capital stock (C) Retailed earnings (D) Administrative expense (E) Prepaid expenses
===Choices
(A) Asset side, (B) Income Statement, (C) Liability section, (D) Own... | (A) Liability section, (B) Owner's Equity section, (C) Owner's Equity section, (D) Income Statement, (E) Asset side | general_qa | 370 |
The following is a multiple choice question (with answers).
===Question
Which of the following modern medical practitioners broke through the limitation of "avoiding fire needle on the face" proposed by predecessors, believing that the face is not an absolute no-needle zone and can also use fire needle according to the... | He Puren | general_qa | 107 |
The following is a multiple choice question (with answers).
===Question
The idea that "all men with power are prone to abuse it; this is an eternal truth" was proposed by ()?
===Choices
Rousseau
Montesquieu
Hume
Austin
Aristotle
Locke
Voltaire
Plato
Hobbes
Machiavelli | Montesquieu | general_qa | 77 |
The following is a multiple choice question (with answers).
===Question
Define $f(n) = {2006 \choose n} \sum^{2006}_{i=1}i^n$ . Find the remainder obtained when $\sum ^{2005}_{k=0}f(k)$ is divided by $1000$ .
===Choices
647
653
649
654
650
645
651
652
646
648 | 648 | general_qa | 118 |
The following is a multiple choice question (with answers).
===Question
The interval of existence for the solution of the equation $\mathbf{y}'=\frac{y^{2}-1}{2}$ passing through the point $(\ln 2, -3)$ is _____.
===Choices
$$(-\infty, 0)$$
$$(-\infty, +\infty)$$
$$(-3, 3)$$
$$( 0,+\infty)$$
$$(-\infty, -1)$$
$$[0, +\... | $$( 0,+\infty)$$ | general_qa | 145 |
The following is a multiple choice question (with answers).
===Question
Enzymes are composed of two types: single-component enzymes, which contain only protein; and _______, which are composed of both protein and small non-nitrogenous organic molecules.
===Choices
partial enzymes
hybrid enzymes
dual enzymes
complete e... | complete enzymes | general_qa | 86 |
The following is a multiple choice question (with answers).
===Question
The working medium returns to its initial state after an irreversible cycle, entropy ()
===Choices
Reduction
Increase
No change
Stability
Same
Sick
Constant
Balance
Increase or decrease
Equilibrium | No change | general_qa | 58 |
The following is a multiple choice question (with answers).
===Question
Which organs are primarily affected by congestion during right heart failure?
===Choices
Liver, spleen, and gastrointestinal tract.
Brain, spleen, and gastrointestinal tract
Kidneys, spleen, and gastrointestinal tract
Lungs, heart, and gastrointes... | Liver, spleen, and gastrointestinal tract. | general_qa | 117 |
The following is a multiple choice question (with answers).
===Question
The so-called political stability, viewed from the perspective of national security management, refers to the process of sustaining the stability of the state power because it is in a state where there is no danger, no threat, and the ability to __... | Freedom from danger and threats | general_qa | 138 |
The following is a multiple choice question (with answers).
===Question
One-dimensional complex lattice m=5\times 1.67\times 10^{-24},g,\frac{M},{m}, =4,\beta =1.5\times 10^{1},N/m (i.e. 1.5\times 10^{4},dyn/cm), find the optical wave \omega_{max},^{0},,\omega_{min},^{0},acoustic wave \omega_{max},^{A},, what is the av... | n^{A},max = 0.873302,n^{0},max = 0.221743,n^{0},min = 0.277673 | general_qa | 591 |
The following is a multiple choice question (with answers).
===Question
Land rent is the form by which the ownership of land is realized economically, and refers to the amount that must be paid for the use of all factors of production (including land, wage labor, etc.) _____.
===Choices
Balance Sheet
Initial Investmen... | Excess Profit | general_qa | 92 |
The following is a multiple choice question (with answers).
===Question
What key signature was "Sing Out" by Ron Kenoly recorded in?
===Choices
G Major
E Major
F# Major
D Major
A Minor
Bb Major
F Major
B Major
C Major
A Major | A Major | general_qa | 63 |
The following is a multiple choice question (with answers).
===Question
What are incompatible elements?
===Choices
The solid/liquid partition coefficient is marginally low, and the trace elements are found mainly in the solid phase.
The solid/liquid partition coefficient is almost zero, thus trace elements predominant... | The solid/liquid partition coefficient is nearly zero, and the trace elements tend to be enriched in the liquid phase. | general_qa | 231 |
The following is a multiple choice question (with answers).
===Question
From the perspective of a plant's growth requirements, the presence of gravitational water is transient, and it occupies the air channels, limiting root respiration which makes it difficult for plants to utilize. This is considered ____.
===Choice... | excess water | general_qa | 97 |
The following is a multiple choice question (with answers).
===Question
What is the maximum air velocity that will not exceed a 2°F temperature rise at a stagnation point ? Assume air at 70°F and 14.7psia. TABLE Gas Chemical Formula Specific Weight, \gamma Density, \rho Gas Constant, R Adiabatic Constant, k lb/ft^3 N/m... | 153 ft/s | general_qa | 579 |
The following is a multiple choice question (with answers).
===Question
g, $\mathbf{f}_{0}$ , and H are regarded as environmental parameters characterizing the atmospheric motion, from which three characteristic scales can be determined, i.e., the characteristic time scale $\mathbf{f}_{0}^{-1}=( 2 \Omega\operatorname{s... | $4.3\times10^6$ | general_qa | 335 |
The following is a multiple choice question (with answers).
===Question
During vacuum drying, an aluminum weighing dish can be chosen. Its specifications should ensure that, when the sample is placed flat within, the thickness does not exceed the () height of the dish.
===Choices
2/3
2/5
1/3
3/5
1/4
1/7
1/2
1/6
1/5
3/... | 1/3 | general_qa | 94 |
The following is a multiple choice question (with answers).
===Question
A doctor suspects that her patient's language processing area is in the right hemisphere. This would most likely be corroborated by the use of
===Choices
CT scan
X-ray
MRI
PET
MMPI
CAT
EEG
ECG
Ultrasound
Blood test | PET | general_qa | 71 |
The following is a multiple choice question (with answers).
===Question
A male fruit fly treated with X-rays developed a recessive lethal mutation in a gene on its X chromosome. When it was mated with a normal wild-type female fruit fly, the sex ratio of the first and second filial generations was respectively __.
===... | 1:1, 2:1 | general_qa | 157 |
The following is a multiple choice question (with answers).
===Question
What was the capital of the Kingdom of Urartu?
===Choices
Tushpa (ancient name for Ararat)
Arzashkun
Tushpa
Van
Ararat
Tushpa (ancient capital of Urartu, near Lake Van)
Tushpa (ancient name for Van)
Tushpa (modern-day Toprakkale)
Tushpa (ancient n... | Tushpa | general_qa | 117 |
The following is a multiple choice question (with answers).
===Question
In static visual images, the () structure implies power and gives people a strong feeling.
===Choices
dotted line
curve
square frame
diagonal line
oblique line
triangular shape
horizontal line
zigzag path
vertical line
circular pattern | vertical line | general_qa | 68 |
The following is a multiple choice question (with answers).
===Question
In a multi-port network, when using the Y matrix (node admittance matrix) for analysis, if the matrix is asymmetric, this indicates that there may be__
===Choices
Pure resistance network
Linear derivative circuitry
Transmission line
Grounded c... | Active elements | general_qa | 97 |
The following is a multiple choice question (with answers).
===Question
Fluid flow in a circular pipe, if the diameter of the pipe and double the flow rate, the laminar flow of energy loss is the original () times, completely turbulent energy loss is the original () times.
===Choices
3,3
6,3
3,6
5,2
4,4
1,3
2,4
2,2
2,... | 2,4 | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
Let the database relational schema R=(A, B, C, D, E), have the following functional dependencies: $\mathrm{A} \to\mathrm{B C}, \ \mathrm{D} \to\mathrm{E}, \ \mathrm{C} \to\mathrm{D}$ ;Which of the following factorizations of R are lossless join fac... | Only I and II | general_qa | 199 |
The following is a multiple choice question (with answers).
===Question
When a MK 25 marine location marker is handled, what component physically prevents the base plugs from being accidentally pushed in?
===Choices
Threaded ridge
Detonation cap
Impact fuse
Release spring
Pressure spring
Retainer clip
Sealing gasket
A... | Arming plate | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
The main immune response causing immune damage in Hemorrhagic Fever with Renal Syndrome is?
===Choices
Type II hypersensitivity reaction with immune complex deposition
Type IV hypersensitivity reaction with immune complex deposition
Type IV hypers... | Type III hypersensitivity reaction | general_qa | 114 |
The following is a multiple choice question (with answers).
===Question
What does aesthetic judgment often go beyond?
===Choices
Personal beliefs
Tangible elements
Logical analysis
Sensory levels
Basic perception
Rational thinking
Emotional states
Artistic criteria
Cognitive processes
Surface details | Sensory levels | general_qa | 61 |
The following is a multiple choice question (with answers).
===Question
What are the two types of dry rales?
===Choices
Bi-phasic; mono-phasic
Crackles; stridor
Pleural; pulmonary
Pneumonic; asthmatic
Inspiratory; expiratory
Respiratory; obstructive
Rhonchi; wheezing
Airway; alveolar
Snoring; stertor
Vesicular; bronch... | Rhonchi; wheezing | general_qa | 101 |
The following is a multiple choice question (with answers).
===Question
The yeast cell wall has a "sandwich" structure, with the outer layer, middle layer and inner layer being (), (), (), respectively. () can be used to hydrolyze the yeast cell wall or the ascus wall to release haploid ascospores.
===Choices
Mannan p... | Mannan polysaccharide layer, protein layer, glucan layer, snail enzyme | general_qa | 266 |
The following is a multiple choice question (with answers).
===Question
How many moles of propane (C3H8) are there in 6.2 g of propane?
===Choices
7.1 × 10^-1 mol
141 mol
0.71 mol
0.14 mol
7.1 mol
14.1 mol
1.41 × 10^2 mol
71 mol
Both 1.4 × 10^-1 mol and 0.14 mol are correct
14.1 × 10^-1 mol | Both 1.4 × 10^-1 mol and 0.14 mol are correct | general_qa | 128 |
The following is a multiple choice question (with answers).
===Question
A reversible adiabatic path on a P- V diagram foran ideal gas passes through state A where P = 0.7$\times $ ${ 10 }^{ 2 }$ N/${ m }^{ -2 }$ and v=0.0049 $ { m }^{ 3 }$, The ratio of specific heat of the gas is 1.4 , The slop of patch at A is:
==... | $$-2.0\times{ 10 }^{ 7\quad }{ Nm }^{ -3 }$$ | general_qa | 346 |
The following is a multiple choice question (with answers).
===Question
Water vapor decomposes into hydrogen and oxygen at the same temperature, i.e., $\mathrm{H}_{2} \mathrm{O} \to\mathrm{H}_{2} + \frac{1} {2} \mathrm{O}_{2}$ , that is, 1 mol of water vapor decomposes into 1 mol of hydrogen and $\frac{1} {2}$ mol at t... | ${\frac{3} {4}} R T$ | general_qa | 235 |
The following is a multiple choice question (with answers).
===Question
The force that can be applied by the actuator will depend on its stroke. Under what condition of a magnetic force (N), a pull-type linear solenoid actuator from Magnet Schultz (R16xR16, 24V10%) is specified when the duty cycle is 10% and the maximum... | 2.6 | general_qa | 158 |
The following is a multiple choice question (with answers).
===Question
A solid cylinder of mass $3kg$ is placed on a rough inclined plane of inclination ${30}^{o}$. If $g=10m{ s }^{ -2 }$, then the minimum frictional force required for it to roll without slipping down the plane is
===Choices
$$5N$$
6N
$$2N$$
$$18N$$
... | $$5N$$ | general_qa | 118 |
The following is a multiple choice question (with answers).
===Question
What is the name of element 107 in the periodic table?
===Choices
Darmstadtium
Rutherfordium
Rhenium
Meitnerium
Bohrium
Hassium | Bohrium | general_qa | 56 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements most accurately explains why the 1H spectrum of 12CHCl3 is a singlet?
===Choices
The hydrogen atom has a magnetic dipole moment.
The molecule is rigid.
Both 35Cl and 37Cl have magnetic dipole moments.
Both 35Cl an... | Both 35Cl and 37Cl have electric quadrupole moments. | general_qa | 160 |
The following is a multiple choice question (with answers).
===Question
In a buffer solution with tartaric acid (A) at pH=10, EDTA is used to titrate Pb2+ of the same concentration. Given that under these conditions lgαPb(A)=2.8 and lgαPb(OH)=2.7, what is the value of lgαPb?
===Choices
3.4
3.3
2.6
5.5
3.2
3.1
3.0
2.9
... | 3.1 | general_qa | 125 |
The following is a multiple choice question (with answers).
===Question
Figure shows a plastic rod having a uniformly distributed charge $Q$. The rod has been bent in a $120^o$ circular arc of radius $r$. In terms of $Q$ and $r$, what is the electric field $ ec E$ due to the rod at point $P$?
===Choices
$$\vec E = \df... | $ ec E = \dfrac{3\sqrt3 \lambda}{8 \pi^2 \epsilon_0 r^2} \hat i$ where $\lambda = \dfrac{2Q}{3\pi r}$ | general_qa | 551 |
The following is a multiple choice question (with answers).
===Question
In which year was the Autonomous Republic of Nam Bo officially established?
===Choices
1943
1945
1942
1947
1948
1946
1941
1949
1944
1940 | 1946 | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
Assume all gases are perfect unless stated otherwise. Unless otherwise stated, thermodynamic data are for 298.15 K. When $120 \mathrm{mg}$ of naphthalene, $\mathrm{C}_{10} \mathrm{H}_8(\mathrm{~s})$, was burned in a bomb calorimeter the temperature... | 205$\text{K}$ | general_qa | 256 |
The following is a multiple choice question (with answers).
===Question
Relativistic electron gas. Consider a degenerate (i.e., \( T=0 \mathrm{K} \)) gas consisting of \( N \) non-interacting electrons in a volume \( V \). Derive the equation relating the pressure, energy, and volume of this gas in the extreme relativi... | $$
P V={\frac{1} {3}} E
$$ | general_qa | 238 |
The following is a multiple choice question (with answers).
===Question
In 2003, a serious SARS epidemic occurred in some parts of China, and after continuous research by scientific researchers, the pathogenesis of SARS virus was finally mastered, and effective measures were taken to control SARS and defeat SARS. What ... | The movement of matter is regular. | general_qa | 149 |
The following is a multiple choice question (with answers).
===Question
What do all atmospheric models of the planets focus upon?
===Choices
Horizontal variations of thermodynamic properties only
Vertical variations of thermodynamic properties only
Solar activity influence on thermodynamic properties only
Horizontal &... | Vertical variations of thermodynamic properties only | general_qa | 116 |
The following is a multiple choice question (with answers).
===Question
If the forward breakdown is at 300 V then when this voltage is reached the thyristor switches on and the voltage across it drops to 1 or 2 V. If the thyristor is in series with a resistance of, say, 20 Ω, then before breakdown there is a very high ... | 14.9 | general_qa | 193 |
The following is a multiple choice question (with answers).
===Question
When the proximal buccal cusp of the maxillary first molar corresponds to the distal middle of the buccal sulcus of the mandibular first molar, it can be judged as ( ).
===Choices
Close molar relationship
Perfect dental conjunction
Occlusal relati... | Distal occlusion relationship | general_qa | 114 |
The following is a multiple choice question (with answers).
===Question
Compute the integral:
$$
\int \frac{ -1 }{ x^2 \cdot \left(3+x^3\right)^{\frac{ 5 }{ 3 }} } \, dx
$$
===Choices
C + \frac{1}{9} \cdot \sqrt[3]{1 + \frac{3}{x^3}} - \frac{1}{18 \cdot \left(1 + \frac{3}{x^3}\right)^{\frac{2}{3}}}
C + \frac{1}{9} \cd... | C + \frac{1}{9} \cdot \sqrt[3]{1 + \frac{3}{x^3}} + \frac{1}{18 \cdot \left(1 + \frac{3}{x^3}\right)^{\frac{2}{3}}} | general_qa | 672 |
The following is a multiple choice question (with answers).
===Question
Suppose $S_n$ is the set of positive divisors of $n$ , and denote $|X|$ as the number of elements in a set $X$ . Let $\xi$ be the set of positive integers $n$ where $|S_n| = 2m$ is even, and $S_n$ can be partitioned evenly into pairs $\{a_i, b_i\}$... | 64 | general_qa | 244 |
The following is a multiple choice question (with answers).
===Question
One mole of an ideal monoatomic gas expends isothermally against constant external pressure of $1$ atm from initial volume of $1L$ to a state where its final pressure become equal to external pressure. If initial temperature of gas is $300\ K$ then... | $$ R\ell n\left( 24.6 \right) $$ | general_qa | 336 |
The following is a multiple choice question (with answers).
===Question
A stretched string is vibrating according to the equation $y = 5 \sin \left( \frac { \pi x } { 3 } \right) \cos 400 \pi t$ , where $y$ and a are in cm and $t$ is second. Potential energy will be zero at time t:-
===Choices
8 s
18 s
2 s
4 s
10 s
14... | 8 s | general_qa | 122 |
The following is a multiple choice question (with answers).
===Question
The MK 58 MOD 1 marine location marker was designed for use under what conditions?
===Choices
It is designed for clear weather use in any condition requiring a short-lasting visual reference marker on the ocean's surface
It is designed for foggy c... | It is designed for day or night use in any condition calling for a long burning smoke and flame reference point marking on the oceans surface | general_qa | 253 |
The following is a multiple choice question (with answers).
===Question
By how much must investment rise to bring about a $ 300M change in income if MPC = 0.75.
===Choices
$30M
$200M
Both $75M and $100M / 4 are correct
$100M
$150M
$225M
$25M
$300M
$75M
$50M | Both $75M and $100M / 4 are correct | general_qa | 111 |
The following is a multiple choice question (with answers).
===Question
What is the purpose of processing using sprouting methods?
===Choices
Stimulating Growth Potential
Prolonging Shelf Life
Enhancing Genetic Traits
Accelerating Germination Process
Reduce toxicity
Increasing Nutrient Levels
Reducing Production Costs... | Generating New Drug Efficacy | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
Who was the first transgender person in Argentina to get her name and gender on her government-issued ID legally changed?
===Choices
Mariana Ximena
Mariana de la V
Florencia Ximena de la V
Florencia de la V Ximena V
Mariana de la V Ximena
Mariana ... | Florencia de la V | general_qa | 127 |
The following is a multiple choice question (with answers).
===Question
The amount of urea to be dissolved in $500 \,ml$ of water $(K = 18.6 \,K \,mole^{-1}$ in $100 \,g \,solvent)$ to produce a depression of $0.186^\circ C$ in freezing point is
===Choices
$$2.7 \,g$$
$$0.3 \,g$$
$$9 \,g$$
$$3.5 \,g$$
$$2.5 \,g$$
$$1.... | $$3 \,g$$ | general_qa | 168 |
The following is a multiple choice question (with answers).
===Question
In the Method of Counteracting Shrinkage section of the 1900 report "Clays of New York, Their Properties and Uses," which specific substance is described as possessing all the advantages of quartz as a diluent of shrinkage but has the advantage ove... | Chamotte | general_qa | 116 |
The following is a multiple choice question (with answers).
===Question
A simple telephone system is composed of two end offices connected to a long-distance office, with a 1 MHz full-duplex trunk line between the end offices and the long-distance office. During an 8-hour workday, a telephone is used on average 4 times... | 50,000 units | general_qa | 213 |
The following is a multiple choice question (with answers).
===Question
How many inductees did the American Classical Music Hall of Fame have in 2005?
===Choices
Seven.
One.
Three.
Eight.
None.
Six.
Nine.
Four.
Two.
Five. | None. | general_qa | 58 |
The following is a multiple choice question (with answers).
===Question
The particular solution to the system of differential equations $\frac{dx}{dt}=y+z, \frac{dy}{dt}=z+x, \frac{dz}{dt}=x+y$ that satisfies the initial conditions $x(0)=1, y(0)=0, z(0)=5$ is ( )
===Choices
x(t)=-{{e}^{-t}}+2{{e}^{2t}}, y(t)=-2{{e}^{-... | $x(t)=-{{e}^{-t}}+2{{e}^{2t}}, y(t)=-2{{e}^{-t}}+2{{e}^{2t}}, z(t)=3{{e}^{-t}}+2{{e}^{2t}}$ | general_qa | 669 |
The following is a multiple choice question (with answers).
===Question
An elderly diabetic has left sided orbital cellulites, CT scan of paranasal sinuses shows evidence of left maxillay sinusitis. Gram stained smear of the orbital exudates shows irregularly branching septate hyphae. The following is the most likely a... | Aspergillus | general_qa | 104 |
The following is a multiple choice question (with answers).
===Question
What is the name of the type of cancer that Fatima Sydow, a renowned Cape Malay culinary artist, was battling before she passed away?
===Choices
Breast cancer.
Leukemia.
Soft tissue sarcoma.
Skin cancer.
Lung cancer.
Bone cancer.
Colon cancer.
Mel... | Soft tissue sarcoma. | general_qa | 87 |
The following is a multiple choice question (with answers).
===Question
In the double optical wedge micrometer system, the optical wedge angle θ is 5°, the refractive index of the optical wedge medium is 1.5, and the spacing between the two optical wedges is changed from 30 mm to 10 mm during the measurement, then the ... | 0.88mm | general_qa | 148 |
The following is a multiple choice question (with answers).
===Question
Two identical coils each of radius $R$ and each carrying a current $I$ in the same direction are placed along a common axis and separated by distance $R$. At the midpoint between the two coils the
===Choices
First derivative of magnetic field $dB/... | Magnetic field is $0.8\sqrt {0.8}\mu_{0}I/R$ | general_qa | 209 |
The following is a multiple choice question (with answers).
===Question
In which year was the Four-Eyed Well in Penghu County, Taiwan established?
===Choices
1594
1590
1596
1593
1591
1597
1598
1592
1595
1599 | 1592 | general_qa | 84 |
The following is a multiple choice question (with answers).
===Question
Evaluate the integral $\int\int\int_{E}{(x+y) \, dV}$, where $E$ is the region defined by:
$$
E = \left\{ (x,y,z) \, | \, 0 \le x \le \sqrt{1-y^2}, \, 0 \le y \le 1, \, 0 \le z \le 1-x \right\}
$$
===Choices
1/48 * (26 - 2 * pi)
1/48 * (26 - 10 * ... | 1/48 * (26 - 3 * pi) | general_qa | 253 |
The following is a multiple choice question (with answers).
===Question
Two transformers are operating in parallel, both connected in a $\mathrm{Y, ~ d 11}$ configuration, with a nominal voltage $\mathbf{U}_{\mathrm{N 1}} / \mathbf{U}_{\mathrm{N 2}} = 35 \mathrm{kV} / 10.5 \mathrm{kV}$. The first transformer is rated a... | $$
3 1 5 4 \, \mathrm{k V} \cdot\mathrm{A},0.97
$$ | general_qa | 522 |
The following is a multiple choice question (with answers).
===Question
A 35-year-old female presents to her primary care physician because of chronic fatigue that has stopped her from gardening and walking with her friends. Upon further questioning, she elaborates that she feels fine after waking up but gradually beco... | Hemicholinium | general_qa | 211 |
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
Franklyn chooses a random positive divisor of 2016, and calls it $x$ . Then, Franklyn randomly chooses a positive divisor of $x$ , and calls it $y$ . The probability that $y = 42$ can be expressed as $\dfrac{m}{n}$ , where $\gcd(m, n) = 1$ . Find $... | 29 | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
Transport organization activities include: (), (), (), ()
===Choices
Service, foundation, social contribution, temporal and complex
Support, initialization, social service, ephemeral and complex
Action, formulating, public effect, transient and co... | Service, foundation, social contribution, temporal and complex | general_qa | 142 |
The following is a multiple choice question (with answers).
===Question
For any positive integer $n$, let $\langle n\rangle$ denote the closest integer to $\sqrt{n}$. Evaluate \[\sum_{n=1}^\infty \frac{2^{\langle n\rangle}+2^{-\langle n\rangle}} {2^n}.\]
===Choices
2.90625
2.96875
2.75
2.875
2.8125
2.625
2.5
2.9375
2.... | 3 | general_qa | 140 |
The following is a multiple choice question (with answers).
===Question
A typical open cluster will dissolve in about the same amount of time as the time since ().
===Choices
flowering plants became dominant
tectonic plates started slow drift
major ice ages repeatedly ended
humans domesticated wild sheep
oceans formed... | dinosaurs walked on Earth | general_qa | 105 |
The following is a multiple choice question (with answers).
===Question
Male, 60 years old. Diagnosed with a right frontal-parietal acute subdural hematoma via CT scan 2 months ago. The current CT shows an enlargement of the affected area, displaying a low-density upper region and a high-density lower region. Diagnose ... | Acute Hemorrhage in Chronic Subdural Hematoma | general_qa | 208 |
The following is a multiple choice question (with answers).
===Question
A 63-year-old man presents to his primary care physician because he has been having headaches and hearing loss. In addition, he says that he has been having difficulty opening his jaw to eat and recurrent middle ear infections. Physical exam reveal... | Burkitt lymphoma | general_qa | 159 |
The following is a multiple choice question (with answers).
===Question
There are mainly three measures to prevent polymer aging: improving the structure and synthesis methods of the polymers, adding ________, and employing ________ methods.
===Choices
antioxidants, physical anti-aging
stabilizers, chemical degradatio... | antioxidants, physical anti-aging | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
Voltage and current in an ac circuit are given by $V=5\sin{(100\pi-\cfrac{\pi}{6})}$ and $I=4\sin{(100\pi+\cfrac{\pi}{6})}$
===Choices
Voltage leads the current by ${60}^{o}$
Current leads the voltage by ${45}^{o}$
Current leads the voltage by ${3... | Voltage leads the current by ${30}^{o}$ | general_qa | 187 |
The following is a multiple choice question (with answers).
===Question
Evaluate $I=\int_{0}^4 \int_{0}^x \int_{0}^{x+y} \left(3 \cdot e^x \cdot (y+2 \cdot z)\right) dz dy dx$.
===Choices
19*(17*e^4+2)
19*(17*e^4+6)
19*(17*e^4-3)
19*(17*e^4+1)
19*(17*e^4-4)
19*(17*e^4+3)
19*(17*e^4-5)
19*(17*e^4-1)
19*(17*e^4+4)
19*(1... | 19*(17*e^4+3) | general_qa | 179 |
The following is a multiple choice question (with answers).
===Question
The average $O-H$ bond energy in $H_{2}O$ with the help of following data :(1) $H_{2}O(l) \rightarrow H_{2}O(g); \triangle H = + 40.6\ KJ\ mol^{-1}$(2) $2H(g) \rightarrow H_{2}(g); \triangle H = + 435.0\ KJ\ mol^{-1}$(3) $O_{2}(g) \rightarrow 2O(g)... | $$462.5\ KJ\ mol^{-1}$$ | general_qa | 352 |
The following is a multiple choice question (with answers).
===Question
Using the $k_{*} \left( \lambda\!=\! 0.1542 \ \mathrm{nm} \right)$ of $Cu$, the first three spectral lines measured in the X-ray diffraction spectrum of Cr are $2 \theta=44.4^{\circ}$, 64.6°, and 81.8°. If the lattice constant for (bcc) Cr is $a = ... | $$
\approx2, \approx4, \approx6
$$ | general_qa | 296 |
The following is a multiple choice question (with answers).
===Question
A 58-year-old woman presents to the office after receiving a bone mineral density screening test result with a T score of -4.1 and a Z score of -3.8. She is diagnosed with osteoporosis. A review of her medical history reveals that she has taken est... | Lansoprazole | general_qa | 205 |
The following is a multiple choice question (with answers).
===Question
Which of the following sequences is not a degree sequence of a graph?
I. (3, 3, 3, 1, 0, 0)
II. (3, 2, 1, 1, 1, 0)
III. (1, 1, 1, 2, 1, 1)
IV. (2, 2, 2, 2, 2, 2)
V. (3, 2, 2, 3, 1, 1)
VI. (1, 0, 0, 3, 2, 2)
VII. (2, 2, 2, 2, 1, 7)
VIII. (1, 2, 2, 4... | III,VIII | general_qa | 230 |
The following is a multiple choice question (with answers).
===Question
There is a pressurized tunnel with a circular cross-section, with a length of $l = 200 \mathrm{m}$, carrying a flow rate of $Q = 700 \mathrm{m}^{3} / \mathrm{s}$. If the inner wall of the tunnel is not lined, its average diameter is $d_{1} = 7.8 \m... | $$
1 3. 0 5 ( \mathrm{m} )
$$ | general_qa | 373 |
The following is a multiple choice question (with answers).
===Question
Which is the world's earliest pharmacopoeia monograph?
===Choices
"Ancient Therapeutic Formulary"
"Latest Remedial Manuscripts Edition"
"Old World Medicinal Compendium"
"Early Medicinal Ingredients List"
"Newly Revised Materia Medica"
"Historic Re... | "Newly Revised Materia Medica" | general_qa | 105 |
The following is a multiple choice question (with answers).
===Question
Physical mutagenesis involves treatment with different types of radiation, causing ____or chromosomal variations.
===Choices
structural abnormalities
protein alterations
thermal exposures
tissue deformations
hormonal imbalances
membrane disruption... | gene mutations | general_qa | 75 |
The following is a multiple choice question (with answers).
===Question
Let $f(x) = \mathrm{e}^{x}$. On the interval $\left[ 0, 1 \right]$, provide a table of function values for $f$ at $n+1$ equally spaced nodes $x_{i}$, which are
$$
0 = x_{0} < x_{1} < \cdots < x_{n} = 1, \quad x_{i} - x_{i-1} = \frac{1}{n}, \quad (i... | $$n=850$$ | general_qa | 295 |
The following is a multiple choice question (with answers).
===Question
For infants aged 3-6 months, apart from the provision of auditory devices such as rattles or music boxes with sound, what should be added?
===Choices
Climbing toys
Operate game materials
Interactive storybooks
Image toys
Develop tactile toys
Educa... | Develop tactile toys | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
Of the following four bacterial species, which is LEAST
LIKELY to be found in plaque?
===Choices
Streptococcus pneumoniae
Streptococcus sanguis
Streptococcus oralis
Streptococcus salivarius
Streptococcus mitis
Streptococcus mutans
Streptococcus go... | Streptococcus salivarius | general_qa | 102 |
The following is a multiple choice question (with answers).
===Question
Wound contraction of a traumatic injury occurs( ).
===Choices
4-5 days after injury and stops around day 14
2-3 days after injury and stops around day 14
1-3 days after injury and stops around day 14
1-2 days after injury and stops around day 14
5... | 2-3 days after injury and stops around day 14 | general_qa | 166 |
The following is a multiple choice question (with answers).
===Question
When a positron is annihilated by combination with an electron, two photons of equal energy result. What is the wavelength of these photons?
===Choices
$$
7. 2 6 3 \times1 0^{-3} \mathrm{~ n m}
$$
$$
1. 2 0 7 \times1 0^{-3} \mathrm{~ n m}
$$
$$
5.... | $$
2. 4 2 6 \times1 0^{-3} \mathrm{~ n m}
$$ | general_qa | 314 |
The following is a multiple choice question (with answers).
===Question
When P32-labeled phosphate molecules are added to the cell culture medium, and ATP is isolated from the cells in a short time, it is found that the amount of ATP does not change much, but some of the terminal P of ATP has been labeled with P32. Thi... | The P farthest from A in ATP is prone to detach | general_qa | 208 |
The following is a multiple choice question (with answers).
===Question
A biconvex lens of focal length 15 cm is in front of a plane mirror. The distance between the lens and the mirror is 10 cm. A small object is kept at a distance of 30 cm from the lens. The final image is :
===Choices
Real and at a distance of 20 c... | Real and at distance of 16 cm from the mirror | general_qa | 210 |
The following is a multiple choice question (with answers).
===Question
A cuboid \( ABCDEFGH \) has vertices \( A(0, 0, 0) \), \( B(0, a, 0) \), \( C(a, a, 0) \), \( D(a, 0, 0) \), \( E(0, 0, b) \), \( F(a, 0, b) \), \( G(a, a, b) \), and \( H(0, a, b) \), is anisotropic with linear expansion coefficients \( \alpha_x =... | $$\beta _{CDEH}=3 \times 10^{-5}/ ^\circ C$$ | general_qa | 440 |
The following is a multiple choice question (with answers).
===Question
The spark that ignited the Cultural Revolution was ( ).
===Choices
The publication of 'A Critique of the New Historical Play 'Hai Rui Dismissed from Office' in the People's Daily'
Wu Han published 'Hai Rui Dismissed from Office'
The publication of... | The publication of 'Comments on the New Historical Play 'Hai Rui Dismissed from Office'' | general_qa | 258 |
The following is a multiple choice question (with answers).
===Question
Parental care is of great significance to the offspring's development. Which type of organism has the least involvement of males in parental care?
===Choices
Mollusks
Primates
Fish
Amphibians
Reptiles
Birds
Cephalopods
Insects
Crustaceans
Mammals | Mammals | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
_________ acid is a derivative of trienoic, tetraenoic, and pentaenoic acids from peanuts.
===Choices
Gamma-linolenic
Docosahexaenoic
Linolenic
Arachidonic
Palmitoleic
Stearic
Oleic
Docosapentaenoic
Eicosapentaenoic
Linoleic | Arachidonic | general_qa | 95 |
The following is a multiple choice question (with answers).
===Question
( ) is stored in the computer for a long time, organized, can be Shared collections of data.
===Choices
TABLE
INFORMATION
DBS
INDEX
FILE SYSTEM
DB
QUERY
DATA
RECORD
SCHEMA | DB | general_qa | 62 |
The following is a multiple choice question (with answers).
===Question
Fuzzy Number Representation of the Investment Return Rate:
Assume that the investment return rate of company X is represented as a fuzzy number $\mu_{U} (X)$, and the domain of the investment return rate is fixed as $U = \{2\%, 5\%, 10\%, 20\%\}$, ... | $$
\mu_{U} ( X )=\frac{0. 2} {2\%}+\frac{0. 4} {5\%}+\frac{0. 3} {10\%}+\frac{0. 1} {20\%}
$$ | general_qa | 864 |
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