problem stringlengths 14 4.09k | solution stringlengths 1 802k | task_type stringclasses 3
values | problem_tokens int64 5 895 |
|---|---|---|---|
The following is a multiple choice question (with answers).
===Question
The frequency response of the continuous-time causal LTI system is $\mathbf{H} ( \omega)=\omega^{2} / ( 5-\omega^{2}+2 \mathbf{j} \omega)$,then the unit step response of the system $s(t)$ is ( ).
===Choices
$= \mathrm{e}^{-4t} ( \frac{1} {3} \oper... | $= \mathrm{e}^{-t} ( \frac{1} {2} \operatorname{s i n} 2 t-\operatorname{c o s} 2 t ) u ( t )$ | general_qa | 535 |
The following is a multiple choice question (with answers).
===Question
Which film features the famous martial arts choreography by Yuen Woo-ping?
===Choices
House of Flying Daggers
Fist of Fury
The Matrix
Crouching Tiger, Hidden Dragon
The Grandmaster
Kung Fu Panda
Ip Man
Rush Hour
Enter the Dragon
Once Upon a Time i... | The Matrix | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
The system shown in the figure is released from rest with the spring in the unstretched position. The spring is attached with the ground. The mass $2\ kg$ descends a distance of $1\ m$ on the inclined plane before it stops. The moment of inertia of... | $$35\ N/m$$ | general_qa | 184 |
The following is a multiple choice question (with answers).
===Question
The rate law for the reaction; $2H_{2(g)}+2NO_{(g)}\rightarrow N_{2(g)}+2H_2O_{(g)}$ is $\displaystyle\frac{d[N_2]}{dt}=k[H_2][NO]^2$. Which of the following mechanisms is consistent with the rate law?
===Choices
$$H_2O_{(g)}+NO_{(g)}\overset{k_3}... | $$H_{2(g)}+2NO_{(g)}\overset{k_4}{\rightarrow} N_{2(g)}+H_2O_{(g)}+\displaystyle \frac{1}{2}O_{2(g)}$$ | general_qa | 597 |
The following is a multiple choice question (with answers).
===Question
A linearly polarized plane wave is incident from free space onto a medium interface with $\varepsilon_{r}=4 \,, \mu_{r}=1$. If the angle between the electric field of the incident wave and the plane of incidence is 45°, What is the value of the inc... | $$\left( {\frac{\mathrm{E}_{i 0}} {\sqrt{2}}} \right)
$$ | general_qa | 336 |
The following is a multiple choice question (with answers).
===Question
When treating insomnia, Zhu Sha An Shen Wan is most suitable for which condition?
===Choices
Yin deficiency with excessive heat
Heart blood stasis
Heart and gallbladder qi deficiency
Kidney essence depletion
Phlegm-fire disturbing the heart
Liver ... | Heart fire blazing | general_qa | 91 |
The following is a multiple choice question (with answers).
===Question
Given a uniformly charged sphere with a radius of $a$ and a total charge of $Q$, determine the divergence and curl of the electric field intensity $E$ at a point inside the sphere is ().
===Choices
$$
\frac{\rho} {\varepsilon_{0}a},0
$$
$$
\frac{\... | $$
\frac{\rho} {\varepsilon_{0}},0
$$ | general_qa | 248 |
The following is a multiple choice question (with answers).
===Question
In China, which of the following behaviors constitute the crime of violating freedom of communication?
I. Opening others' letters without permission, spreading their privacy, and damaging their reputation
II. Destroying others' letters, causing the... | I,II,III | general_qa | 163 |
The following is a multiple choice question (with answers).
===Question
Which functions does the hypocotyl have?
===Choices
Anchor the plant to the substrate
Facilitate nutrient absorption from soil
Store energy in the form of starch
Produce primary leaf pigments
Develop into the root system directly
Support flower an... | Regulate early embryo development | general_qa | 95 |
The following is a multiple choice question (with answers).
===Question
In $YDSE$ experiment shown in the figure, a parallel beam of light of wavelength $(\lambda = 0.3\ mm)$ in medium $\mu_{1}$ is incident at an angle $\theta = 30^{\circ}$ as shown$(S_{1}O = S_{2}O)$. If the intensity due to each light wave at point $... | $$I_{0}$$ | general_qa | 270 |
The following is a multiple choice question (with answers).
===Question
Find the mass of air in a closed chamber measuring 35 ft × 20 ft × 10 ft, when the pressure is 17 lb/in^2 and the temperature is 75°F. Assume air to be an ideal gas.
===Choices
550 lbm
800lbm
700lbm
500lbm
450 lbm
850 lbm
650 lbm
601lbm
900 lbm
75... | 601lbm | general_qa | 129 |
The following is a multiple choice question (with answers).
===Question
The prices of goods X and Y rise at the same rate, while income remains unchanged. The budget line ().
===Choices
shifts to the right without changing slope
moves parallel to the lower left or upper right
becomes flatter
shifts to the left without... | moves parallel to the lower left | general_qa | 108 |
The following is a multiple choice question (with answers).
===Question
For container ships with a length of L>100m, the parts of the hull that should be longitudinal skeleton are as follows: (1) inside the double bottom; (2) the top of the broadside; (3) Nose and tail pointed cabins; (4) Under the power deck in the ca... | (1)(2)(4) | general_qa | 132 |
The following is a multiple choice question (with answers).
===Question
Which of the following organism is responsible for 'malt worker's lung'?
===Choices
Penicillium notatum
Penicillium glabrum
Penicillium clavatum
Aspergillus niger
Penicillium chrysogenum
Mycobacterium avium complex
Aspergillus fumigatus
Aspergillu... | Aspergillus clavatus | general_qa | 109 |
The following is a multiple choice question (with answers).
===Question
The inverse Laplace transform of the function $$\frac{\pi( 1-\mathrm{e}^{-2 s} )}{s^{2}+\pi^{2}}$$ is ( ).
===Choices
$\operatorname{cos} \pi t \left[ u ( t ) - u ( t - 2 ) \right]$
$\operatorname{s i n} \pi t \left[ u ( t ) \!+\! u ( t \!-\! 3 ) ... | $\operatorname{s i n} \pi t \left[ u ( t ) \!-\! u ( t \!-\! 2 ) \right]$ | general_qa | 396 |
The following is a multiple choice question (with answers).
===Question
There is a horizontal dipole antenna installed above the ground with a working wavelength of $\lambda = 40$ m. If the maximum radiation elevation angle of 30° is to be achieved in the plane perpendicular to the antenna, how high should the antenna ... | 20m | general_qa | 112 |
The following is a multiple choice question (with answers).
===Question
______ is composed of a collection of various cultural characteristics, embodying a collection of impressions and perceptions of the culture of a specific region.
===Choices
Traditional panorama
Historical backdrop
Regional mosaic
Social composite... | Cultural landscape | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
In 2021, according to Hong Kong law, what is the maximum length of imprisonment for committing the offense of common assault?
===Choices
1.1 years
2 years
14 months
1 year
1.5 years
6 months
9 months
1.2 years
3 years
18 months | 1 year | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
Which of the following language correction methods is based on sensory compensation?
===Choices
Environmental manipulation strategy
Children's song story method
Tactile engagement program
Comprehensive communication method
Adaptive response traini... | Comprehensive communication method | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
Identify which one of the Five Laws of Library science that Ranganathan remarked as 'trivial truism' in his writing"Library Science and Scientific Method"?
===Choices
Seventh Law
Fourth Law
Ninth Law
First Law
Second Law
Tenth Law
Eighth Law
Third... | First Law | general_qa | 86 |
The following is a multiple choice question (with answers).
===Question
At 298 K, the solubility of liquid substance A, with a molecular weight of 120, in water is $0.12 \, \mathrm{g} / (100 \, \mathrm{g} \, \text{water})$. Assume that water is insoluble in liquid substance A. What are the activity and activity coeffic... | $\begin{array} {l} {1.80 \times1 0^{-5}} ,{5.56 \times1 0^{4}} \\ \end{array}$ | general_qa | 558 |
The following is a multiple choice question (with answers).
===Question
The Transplantation of Human Organs Act 1994 stipulates all of the following, EXCEPT:
===Choices
Bans buying and selling of organs
Live donation by an unrelated donor for altruistic reasons is permitted
Live donation by an unrelated donor for paym... | Live donation by an unrelated donor for payment is permitted | general_qa | 177 |
The following is a multiple choice question (with answers).
===Question
Recycling and smelting enterprises for scrap metals are required to establish a radiation monitoring system to monitor ( ) in order to prevent radioactive sources from being accidentally melted.
===Choices
Discharged wastewater
Worker Exposure Lev... | Incoming Material | general_qa | 95 |
The following is a multiple choice question (with answers).
===Question
Given the solution reaction $S_2O_8^{2-}(aq) + 2I^−({aq}^{-}) = 2SO_4^{2-}(aq) + I_2(aq)$, the experimentally determined reaction rate constant is $k_0 = 1.38 \times 10^{-3} mol^{-1} \cdot dm^3 \cdot s^{-1}$. Now, if $c(KI) = 0.0100 mol \cdot kg^{-... | $$
2. 2 3 \times1 0^{-3} \mathrm{~ m o l}^{-1} \cdot\mathrm{d m}^{3} \cdot\mathrm{s}^{-1}
$$ | general_qa | 676 |
The following is a multiple choice question (with answers).
===Question
Not considering electronic spin, the degeneracy of second excited state ($n=3$) of $H$ atom is $9$, while the degeneracy of fourth excited state of hydride ion (${H}^{-}$) is:
===Choices
five
nine
seven
three
one
six
eight
ten
two
four | three | general_qa | 86 |
The following is a multiple choice question (with answers).
===Question
In a medium of refractive index 1.6 and having a convex surface has a point object in it at a distance of 12 cm from the pole. The radius of curvature is 6 cm. Locate the image as seen from air
===Choices
A virtual image at 12 cm
A real image at 2... | A virtual image at 30 cm | general_qa | 162 |
The following is a multiple choice question (with answers).
===Question
This question refers to the following information.
Read the list of complaints below.
Article 3: Frenchmen should regard as laws of the kingdom those alone which have been prepared by the national assembly and sanctioned by the king.
Article 11: Pe... | Pursuing a policy of de-Christianization | general_qa | 399 |
The following is a multiple choice question (with answers).
===Question
Gribble Corporation is developing a 64-bit computer architecture, which means that up to $64$-bit addresses can be used when accessing memory. Assuming virtual paged memory management is used, the corresponding address mapping mechanism now needs t... | $$
3 2 \mathrm{K B}
$$ | general_qa | 269 |
The following is a multiple choice question (with answers).
===Question
The lower the price, the greater the demand for the product, and the relationship between these two is_____.
===Choices
negative correlation
Positive correlation
consistently steady
Re related
moderately associated
directly proportional
inversely ... | negative correlation | general_qa | 77 |
The following is a multiple choice question (with answers).
===Question
Which 2017 film directed by Jiang Wen portrays a satirical take on the Cultural Revolution?
===Choices
The Masked Warrior
The Whispering Shield
The Concealed Blade
The Silent Arrow
The Masked Fighter
The Whispering Spear
The Veiled Dagger
A sunny ... | A sunny day | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
What was the age range of the drivers whose EEG data was collected in the 2021 research paper titled "EEG-Based Driving Fatigue Detection Using a Two-Level Learning Hierarchy Radial Basis Function" by Ziwu Ren et al.?
===Choices
23-28
22-26
23-26
... | 23-27 | general_qa | 128 |
The following is a multiple choice question (with answers).
===Question
Calculate the value of $\begin{aligned}\sqrt[6]{7\sqrt[3]{20}-19}\end{aligned}$?
===Choices
$\sqrt[3]{\frac67}-\sqrt{\frac23}$
$\sqrt[3]{\frac53}-\sqrt{\frac43}$
$\sqrt[3]{\frac73}-\sqrt{\frac23}$
$\sqrt[3]{\frac53}-\sqrt{\frac13}$
$\sqrt[3]{\frac... | $\sqrt[3]{\frac53}-\sqrt{\frac23}$ | general_qa | 226 |
The following is a multiple choice question (with answers).
===Question
Under normal circumstances, what is the optimal temperature for sperm production and survival?
===Choices
4-5°C higher than body temperature
2-3°C lower than body temperature
Normal room temperature
5-6°C higher than body temperature
Above 37°C co... | 1-2°C lower than body temperature | general_qa | 109 |
The following is a multiple choice question (with answers).
===Question
If the government sets a price ceiling on mobile phones, which of the following events will make the price ceiling non-binding?
===Choices
standards for mobile phone radiation decrease
mobile phones become more popular
tariffs on imported mobile c... | technological advances make mobile phone production cheaper | general_qa | 122 |
The following is a multiple choice question (with answers).
===Question
What is the purpose of introducing intermediate code into a compiler?
===Choices
Facilitates the porting of target code
Convenient for code generation
Facilitates optimization of target code
Facilitates the portability of compilers
Facilitates imp... | Facilitates the portability of compilers | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
A steel ball bearing falls onto a horizontal steel plate at a 45° angle and bounces off forming a 60° angle with the vertical line. What is the coefficient of restitution for the collision ?
===Choices
$$0. 7 0$$
$$0. 5 3$$
$$0. 6 5$$
$$0. 5 8$$
$... | $$0. 5 8$$ | general_qa | 149 |
The following is a multiple choice question (with answers).
===Question
A simplified flute shown in the figure. It is open at end $D$.
There is also a large opening at $A$ (near the mouth piece) and there are two holes at $B$ and $C$ [$AB=BD$ and $BC=CD$]. The distance $AD=34\ cm$. The speed of sound is $340\ m/s$. Wha... | $$1000\ Hz$$ | general_qa | 198 |
The following is a multiple choice question (with answers).
===Question
Which of the following proteins is transported via a post-translational mechanism?
===Choices
Hormones
Myosin
Elastin
Actin
Peroxisome
Hemoglobin
Immunoglobulin
Tubulin
Hydrolase
Collagen | Peroxisome | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
Regarding the monotonicity of the function \( f(x) = 2x^3 - 6x^2 - 18x - 7 \), which of the following statements is correct?
===Choices
\( x \in (1,4) \) is monotonically decreasing
\( x \in (-\infty, -1) \) is monotonically decreasing
\( x \in (-... | \( x \in (-1,3) \) is monotonically decreasing | general_qa | 240 |
The following is a multiple choice question (with answers).
===Question
Who is the author of 'Tractatus Theologico-Politicus'?
===Choices
Baruch Spinoza (Benedictus Spinoza)
Baruch Spinoza (Benedict Spinoza)
Baruch Spinoza (Benedict De Spinoza, 1632-1677)
Baruch Spinoza (Benedict de Spinoza)
Thomas Hobbes
John Locke
B... | Baruch Spinoza (Benedict De Spinoza) | general_qa | 189 |
The following is a multiple choice question (with answers).
===Question
Given a balanced redox reaction:$2MnO^{\circleddash}_4+8H^{\bigoplus}+Br_2\rightarrow 2Mn^{2+}+2BrO^{\circleddash}_3+2H_2O$If the molecular weights of $MnO^{\circleddash}_4$ and $Br_2$ be $M_1$ and $M_2$ respectively, then:
===Choices
equivalent w... | equivalent weight of $Br_2$ = $\dfrac{M_2}{10}$ | general_qa | 299 |
The following is a multiple choice question (with answers).
===Question
The Children's Act 1960 provide for care, maintenance, training and rehabilitation of which of the following?
===Choices
Socially deprived children
Physically handicapped children
Delinquent children
Under 5 children
Children in conflict with the ... | Delinquent children | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
In digital circuits, the main parameter that determines the speed of a logic gate is?
===Choices
Switching Curve
Clock Edge
Door Delay
Pulse Period
Propagate Speed
Gate Width
Signal Phase
Transfer Pulse
Cycle Time
Transition Rate | Door Delay | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
At 360 K, water (A) and isobutanol (B) are partially miscible, with the mole fraction of isobutanol in the aqueous phase $x_{\mathrm{B}} = 0.021$. It is known that isobutanol in the aqueous phase follows Henry's Law, with the Henry's constant $k_{x... | $$
5 2. 3 6 \mathrm{~ k P a}
$$ | general_qa | 389 |
The following is a multiple choice question (with answers).
===Question
In an air medium, the resonance frequency of a Helmholtz resonator with an inlet tube radius of 0.01m, an inlet tube length of 0.1m, a container radius of 0.1m, and a container height of 0.2m is ( ).
===Choices
52Hz
55Hz
60Hz
47Hz
40Hz
45Hz
30Hz
5... | 47Hz | general_qa | 119 |
The following is a multiple choice question (with answers).
===Question
(Vinyl chloride $\mathbf{M}_{1}$, $r_{1}=1.68;$ vinyl acetate $\mathrm{M}_{2}$, $r_{2}=0.23$). A benzene solution containing 1.5 mol·L$^{-1}$ vinyl chloride and 3.5 mol·L$^{-1}$ vinyl acetate is initiated with 0.1 mol·L$^{-1}$ azobisisobutyronitril... | $$
4. 1 2 {\times} 1 0^{-4}
$$ | general_qa | 344 |
The following is a multiple choice question (with answers).
===Question
A person can still remember some things he did with his grandparents in his hometown when he was 5 to 6 years old. What kind of memory is this?
===Choices
Functional recognition
Individual perception
Judgmental memory
Knowledge retention
Behaviora... | Situational memory | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
In a computer with dynamic partition storage management, the main memory capacity is 55MB (initially empty), using the Best Fit algorithm. The sequence of allocation and release is: allocate 15MB, allocate 30MB, release 15MB, allocate 8MB, allocate... | 9MB | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
Potassium chloride $(^{39} \mathrm{K}^{35} \mathrm{Cl})$ is a colorless and transparent ionic crystal with a density of $\rho = 2.0 \mathrm{g/cm}^{3}$: (1) calculate the nearest neighbor distance between $\mathrm{K^{+}}$ and $\mathrm{Cl^{-}}$ in th... | $$
3. 4 \, \AA
$$
$$
3.1 eV
$$
$$
c = \alpha T^{3}
$$ | general_qa | 619 |
The following is a multiple choice question (with answers).
===Question
In the Neo4J cluster architecture, data writing is done by (), while data reading is usually done by ().
===Choices
Secondary server, Secondary server
Primary server, any Neo4J instance
Primary server, Primary server
Any Neo4J instance, slave serv... | Primary server, any Neo4J instance | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
A horizontally oriented tube AB of length $l$ rotates with a constant angular velocity $\omega$ about a stationary vertical axis OO' passing through the end A (fig). The tube is filled with an ideal fluid. The end A of the tube is open, the closed ... | $$ v=\omega \sqrt{h(2l-h)} $$ | general_qa | 224 |
The following is a multiple choice question (with answers).
===Question
Where is the Tai Shi Que located in Henan Province?
===Choices
Xinxiang City
Kaifeng City
Xinzheng City
Anyang City
Luoyang City
Song County
Zhengzhou City
Dengfeng County
Songyang City
Songyang County | Dengfeng County | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
A rectangle, $HOMF$, has sides $HO=11$ and $OM=5$. A triangle $ABC$ has $H$ as the intersection of the altitudes, $O$ the center of the circumscribed circle, $M$ the midpoint of $BC$, and $F$ the foot of the altitude from $A$. What is the length of... | 28 | general_qa | 128 |
The following is a multiple choice question (with answers).
===Question
The specialized type refers to the type of pathogen that exhibits different ______ to the family, genus, or species of the host plant within the same species.
===Choices
susceptibility
adaptability
toxicity
morphology
pathogenicity
virulence
biodi... | pathogenicity | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
The genotype of a certain organism is AaBb. After meiosis of an oocyte, an egg cell with a genome composed of Ab and three polar bodies are produced. The genetic composition of these three polar bodies is ().
===Choices
$$
\mathrm{A b, ~ A B, ~ a ... | $$
\mathrm{A b, ~ a B, ~ a B}
$$ | general_qa | 243 |
The following is a multiple choice question (with answers).
===Question
A body is dropped from a height $h$ under acceleration due to gravity $g$. If $t_1$ and $t_2$ are time intervals for its fall for first half and the second half distance. The relation between them is
===Choices
$$t_1 = 2_{t_2}$$
$$t_1 = 1.236_{t_2... | $$t_1 = 2.414_{t_2}$$ | general_qa | 234 |
The following is a multiple choice question (with answers).
===Question
A man is raising himself and the crate on which he stands with an acceleration of $5m{ s }^{ -2 }$ by a massless rope-and-pulley arrangement. Mass of the man is $100 kg$. If $g=10m{ s }^{ -2 }$,, the contact force between the man and the crate is:
... | $$375N$$ | general_qa | 165 |
The following is a multiple choice question (with answers).
===Question
The foundation for the unity of scientific and revolutionary aspects of Marxism is
===Choices
theoretical practice
empirical evidence
logicality
combativeness
practicality
pragmatism
theoretical nature
theoretical application
theoretical practical... | practicality | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
In what year did Gordon Plotkin win the ACM SIGPLAN Programming Languages Achievement Award?
===Choices
2006
2013
2011
2009
2010
2015
2007
2012
2005
2008 | 2010 | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
What is the rate of diffusion of water vapor molecules through stomata related to when the stomata are open?
===Choices
It parallels the depth of the stomata
It is equal to the radius of the stomata
It is comparable to the width of the stomata
It ... | It is proportional to the perimeter of the stomata | general_qa | 139 |
The following is a multiple choice question (with answers).
===Question
A 31-year-old man with a 5-year history of HIV infection comes to the office because of anal pain, particularly on defecation, for the past 4 months. He says he has seen spots of blood on the toilet tissue but has not had any other noticeable bleed... | Imiquimod | general_qa | 363 |
The following is a multiple choice question (with answers).
===Question
Which of the following belongs to the multipath effect in a Rayleigh fading channel?
===Choices
Linearity in Rayleigh Scattering
Decline of Rayleigh
Peak Signal Disruption
Rapid Signal Variation
Frequency Selective Fading
Uniform Distribution Fadi... | Frequency Selective Fading | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
A point traversed half a circle of radius $R=160\:cm$ during time interval $\tau=10.0\:s$. Calculate the modulus of the mean vector of the total acceleration $|\left<w\right>|$ if the point moved with constant tangential acceleration averaged over ... | $$10\:cm/s^2$$ | general_qa | 181 |
The following is a multiple choice question (with answers).
===Question
What does a "gallop rhythm" indicate?
===Choices
Marked mitral valve prolapse
Tachycardia
Myocardial hypertrophy
Advanced ventricular dilation
Extensive pericardial effusion
Significant pulmonary hypertension
Cardiac chamber enlargement
Severe myo... | Severe myocardial damage | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
In the early atomic theory, J.J. Thomson proposed the "plum pudding" model of the atom, where a sphere of positive charge with a radius \(a\) and total charge \(Ze\) is considered, where \(Z\) is an integer and \(e\) is the elementary charge unit. ... | $$
\omega=\sqrt{\frac{k} {m}}=\sqrt{\frac{e^{2}} {4 \pi\varepsilon_{0} a^{3} m}}
$$ | general_qa | 521 |
The following is a multiple choice question (with answers).
===Question
By whom was Count Botho zu Eulenburg preceded as Minister President of Prussia?
===Choices
Otto von Manteuffel
Albrecht von Roon
Friedrich von Preen
Leo von Caprivi
Otto von Bismarck | Leo von Caprivi | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
A female patient, suffering from cough, right-sided chest pain, and shortness of breath for three months, was diagnosed with a large amount of pleural effusion on the right side. The patient often adopts __________ to breathe.
===Choices
a diagona... | an upright sitting position | general_qa | 118 |
The following is a multiple choice question (with answers).
===Question
Compounds tetra-n-propylammonium chloride and tri-n-propylammonium chloride are identified by _____.
===Choices
NaOH aqueous solution
NaCl aqueous solution
KOH aqueous solution
H2SO4 aqueous solution
HCl aqueous solution
Na2CO3 aqueous solution
CH... | NaOH aqueous solution | general_qa | 112 |
The following is a multiple choice question (with answers).
===Question
Solve the integral:
$$
\int \frac{ \sin(x)^5 }{ \cos(x)^4 } \, dx
$$
===Choices
C + \frac{2}{\cos(x)} + \frac{1}{3 \cdot (\cos(x))^2} + \cos(x)
C + \frac{2}{\cos(x)} + \frac{1}{3 \cdot (\cos(x))^4} + \cos(x)
C + \frac{2}{\cos(x)} + \frac{1}{3 \cdo... | C + \frac{2}{\cos(x)} + \frac{1}{3 \cdot (\cos(x))^3} + \cos(x) | general_qa | 367 |
The following is a multiple choice question (with answers).
===Question
According to the World Bank, what percentage of global wealth is now made up of human resources?
===Choices
54%
65%
58%
84%
34%
64%
47%
44%
74%
55% | 64% | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements comes from Mao Zedong's military thought?
===Choices
Democracy is the worst form of government, except for all the others
Let a hundred flowers bloom, let a hundred schools of thought contend
Religion is the opiat... | There are only two types of wars in history: just and unjust. | general_qa | 141 |
The following is a multiple choice question (with answers).
===Question
Hydrogen cyanide, HCN, is a poisonous gas. The lethal dose is approximately 300 mg HCN per kilogram of air when inhaled.Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring $1 2 \, \times\, 1 5 \, \times\, 8. ... | $$
\mathrm{1 4 g ~ H C N}
$$ | general_qa | 280 |
The following is a multiple choice question (with answers).
===Question
The main diseases that need to be differentiated during the absorption stage of lobar pneumonia are ().
===Choices
Asthma
COPD
Pneumothorax
Chronic Bronchitis
Bronchitis
Acute Bronchitis
Tuberculosis
Cystic Fibrosis
Emphysema
Pleural Effusion | Tuberculosis | general_qa | 87 |
The following is a multiple choice question (with answers).
===Question
The stress developed in the top layers of the rocks which disintegrate due to repeated variations in temperatures is ().
===Choices
Surface tension
Frictional force
Shear stress
Hydraulic stress
Elastic strain
Compressive force
Tensile stress
Grav... | Tensile stress | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
Male, 26 years old. Passed tarry stool for 2 days, worsening with dizziness and palpitations for half a day before emergency hospital admission. No history of liver disease, no recent medication history. Physical examination: BP 70/40 $mmHg$, heart... | Duodenal Ulcer | general_qa | 171 |
The following is a multiple choice question (with answers).
===Question
In the following hybrid combinations, the offspring exhibit only one phenotype ().
===Choices
$EeFF\times EEFf$
$EEff\times eeFF$
$EEEf\times Eeff$
$EeFf\times EEFf$
$eeFF\times EEFf$
$eeFf\times EeFF$
$Eeff\times EEFf$
$EeFf\times eeFF$
$EEFF\tim... | $EeFF\times EEFf$ | general_qa | 125 |
The following is a multiple choice question (with answers).
===Question
A projector with a lens of 40 cm focal length illuminates an objectslide 4.0 cm long and throws an image upon a screen 20 m from the lens.What is the size of the projected image?
===Choices
250 cm
200 cm
220 cm
210 cm
160 cm
150 cm
240 cm
196 cm
1... | 196 cm | general_qa | 112 |
The following is a multiple choice question (with answers).
===Question
A 16-year-old planned to throw a party while his parents were out of town.
He texted a 23-year-old friend and asked the friend to purchase liquor for him. At first the friend declined, knowing that it is unlawful for a person to supply alcohol to a... | No, because the contract was illegal. | general_qa | 281 |
The following is a multiple choice question (with answers).
===Question
What is the first release date of the online web series comedy <Spicy Neighbor> on the internet?
===Choices
January 10, 2012
January 10, 2017
January 10, 2019
January 10, 2016
January 10, 2013
January 10, 2015
January 10, 2014
January 10, 2010
Jan... | January 10, 2012 | general_qa | 147 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is Golomb's sequence: a(n) represents the number of times the integer n appears in the sequence, starting with a(1) = 1. This sequence is known for its self-referential properties, where the quanti... | [17, 17, 18, 18, 18, 18, 18, 18, 18, 19] | general_qa | 548 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is: Triangle with subscripts (1,1),(2,1),(1,2),(3,1),(2,2),(1,3), etc. in which entry (i,j) is the floor function of the ratio i/j. Given the input x_list (a series of values): [93, 94, 95, 96, 97,... | [6, 4, 2, 2, 1, 1, 0, 0, 0, 0] | general_qa | 441 |
The following is a multiple choice question (with answers).
===Question
Company A is a general taxpayer of value-added tax (VAT), subject to a VAT rate of 16%. In 2×16, it constructed a production line using its own resources. It purchased construction materials for 3 million yuan, with a VAT input tax of 480,000 yuan,... | 697 | general_qa | 295 |
The following is a multiple choice question (with answers).
===Question
A flat-bottom aluminum alloy kettle with a bottom thickness of \(2 \, \text{mm}\) and thermal conductivity of \(200 \, \text{W/(m·°C)}\) contains cold water at \(20 \, \text{°C}\) and is placed on an electric stove. If the inner wall temperature of... | 8.8 | general_qa | 197 |
The following is a multiple choice question (with answers).
===Question
Which of the following is most likely to be secondary to ulnar nerve injury?
===Choices
Fracture of the ulnar humerus
Tear of the ulnar ligament
Disruption of the brachial artery
Tear in the carpal ligament
Compression of the median forearm
Tear o... | Fracture of the ulnar humerus | general_qa | 116 |
The following is a multiple choice question (with answers).
===Question
Calculate the fugacity and fugacity coefficient of the gas with a density of $\rho = 161.4g•dm^{-3}$ at $373K$ and $100p^{\Theta}$ ethane (g).
===Choices
$$
\begin{array} {l} {{{\gamma=0. 5 8 9 9}}} \\ {{{f=5 8 9 9 \, \mathrm{k P a}}}} \\ \end{arr... | $$
\begin{array} {l} {\gamma=0.6083} \\ {f=6083 kPa} \\ \end{array}
$$ | general_qa | 584 |
The following is a multiple choice question (with answers).
===Question
You wish to put a 1000-kg satellite into a circular orbit 300 km above the earth's surface. How much work must be done to the satellite to put it in orbit? The earth's radius and mass are $R_E}=$ $6.38 \times 10^6 m$ and $m_E=5.97 \times 10^{24} kg... | 3.26 | general_qa | 166 |
The following is a multiple choice question (with answers).
===Question
Concentrate a 2500 kg·h$^{-1}$ NaOH aqueous solution from 10% (mass fraction, the same below) to 30% in a single-effect evaporator. Given that the absolute pressure of the heating steam is 361.47 kPa, the pressure in the evaporation chamber is 101.... | 1.32 | general_qa | 221 |
The following is a multiple choice question (with answers).
===Question
Given that:
$$\Delta G_{r}^{\circ} (CuO) = -30.4 \text{ kcal/mole}$$
$$\Delta G_{r}^{\circ} (Cu_2O) = -34.98 \text{ kcal/mole} \;\;\;\;\;\;\;\;\; T = 298\ K$$
Now on the basis of above data which of the following predictions will be most appropriat... | Finely divided form of $CuO$ kept in excess $O_2$ would be completely converted to $Cu_2O$ | general_qa | 419 |
The following is a multiple choice question (with answers).
===Question
Coloring the edges of a complete graph with 6 vertices in 2 colors, how many triangles of the same color are there at least?
===Choices
6
7
3
8
4
9
5
0
2
1 | 2 | general_qa | 65 |
The following is a multiple choice question (with answers).
===Question
When a steady current passes through a conductor, its current and application are proportional to the voltage at both ends of the conductor, and the proportionality constant is called the () of the object.
===Choices
Kinetic Energy
Power Stability... | Electrical Conductivity | general_qa | 93 |
The following is a multiple choice question (with answers).
===Question
Among the threads currently in use, the best self-locking performance is ().
===Choices
Square thread
Triangular thread
Serrated shape
Round threads
Rectangular thread
Hexagonal thread
Helical flank thread
Trapezoidal thread
Diamond-shaped thread
... | Triangular thread | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
For treating febrile diseases entering the nutrient and blood levels, with symptoms such as restlessness and insomnia, the first-choice medication is _______.
===Choices
Danggui (Angelica sinensis)
Taoren (Peach kernel)
Huangqin (Scutellaria baica... | Danshen (Salvia miltiorrhiza) | general_qa | 148 |
The following is a multiple choice question (with answers).
===Question
In physical education, the groups for healthy grouping are the competitive group, the preparatory group, and _______.
===Choices
the tactical training group
the endurance training group
the physical rehabilitation group
the sports psychology group... | the sports medicine group | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
According to Chinese law, what generally applies to resolving legal conflicts in litigation procedures?
===Choices
Law of the court's location
Law of the primary evidence
Law chosen by the parties
Personal choice of the judge
Law of the secondary ... | Law of the court's location | general_qa | 92 |
The following is a multiple choice question (with answers).
===Question
_______ technique uses high-velocity argon, nitrogen, or helium gas jets.
===Choices
Flame spraying
Water misting
Plasma spraying
Air sublimation
Gas atomization
Liquid immersion
Ultrasonic bonding
Pressure coating
Heat exchange
Vapor deposition | Gas atomization | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
When the CPU executes a program, the Cache completes 1,900 accesses, while main memory completes 100 accesses. Given that the Cache access cycle is 50ns and the main memory access cycle is 250ns, assuming the main memory and Cache are accessed simu... | 83.3% | general_qa | 140 |
The following is a multiple choice question (with answers).
===Question
A certain steel plate boiler air duct has a length of $l=100 \mathrm{m}$, with a cross-sectional dimension of $400 \mathrm{mm} \times 200 \mathrm{mm}$. The average airflow speed inside the pipe is $V=10 \mathrm{m/s}$, with an absolute roughness of ... | $$382Pa$$ | general_qa | 203 |
The following is a multiple choice question (with answers).
===Question
What were the month and year when Google's software engineer Gary Kačmarčík wrote that ChromeOS would access remote applications through a technology unofficially called "Chromoting"?
===Choices
October 2010
May 2010
February 2010
August 2010
July... | June 2010 | general_qa | 123 |
The following is a multiple choice question (with answers).
===Question
An insects crawls from top of a fixed hemispherical umbrella radius $\dfrac{30}{\pi}$ cm very slowly.The coefficient of static friction between the insect and surface of umbrella is $\mu s = \dfrac{1}{\sqrt3}$,find distance travel by the insect bef... | $$3\ cm$$ | general_qa | 116 |
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