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The following is a multiple choice question (with answers). ===Question The origin of the form "symphony" can be traced back to which period? ===Choices Modern Medieval Primitive Neoclassical Baroque Renaissance Romantic Postmodern Impressionist Classical
Classical
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65
The following is a multiple choice question (with answers). ===Question A radioactive nucleus $A$ with half time $T$, decays into a nucleus $B$. At $t = 0$, there is no nucleus $B$. At some time $t$, the ratio of the number of $B$ to that of $A$ is $0.3$. Then, $t$ is given by ===Choices $$\frac{T}{3 \log 1.3}$$ \frac...
$$\frac{T \log 1.3}{\log 2}$$
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244
The following is a multiple choice question (with answers). ===Question M=kPY belongs to the theory of (). ===Choices money supply theory monetary neutrality theory cash transaction theory cash balance theory quantity theory of money rational expectations theory loanable funds theory velocity of money theory liquidity...
cash balance theory
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73
The following is a multiple choice question (with answers). ===Question Which management scholar proposed the organizational structure known as the 'Wood Sorrel Organization'? ===Choices Alfred Sloan Peter Senge Henry Fayol Peter Drucker Henry Mintzberg Alfred Chandler Charles Handy
Charles Handy
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61
The following is a multiple choice question (with answers). ===Question A patient with end-stage kidney disease (ESKD) has developed anemia. What laboratory finding does the nurse understand to be significant in this stage of anemia? ===Choices calcium level of 9 mg/dL leukocyte count of 5,000 cells/mL platelet count ...
creatinine level of 6 mg/100 mL
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172
The following is a multiple choice question (with answers). ===Question For every positive real number $x$, let \[ g(x) = \lim_{r \to 0} ((x+1)^{r+1} - x^{r+1})^{\frac{1}{r}}. \] Find $\lim_{x \to \infty} \frac{g(x)}{x}$. ===Choices e^{1/3} e^{4/3} e^{1/2} e^{1/4} e^{3/2} e^{5/4} e^{3/4} e e^2 e^{2/3}
e
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144
The following is a multiple choice question (with answers). ===Question There is an employee table: Employee (Employee Code, Name, Gender, Date of Birth). To query the employee's age, the calculated field "Age" should be defined as ___. ===Choices Age: Year(Now()) - Year('Date of Birth') Age: Year(Now()) - YearFormat(...
Age: Year(Now()) - Year([Date of Birth])
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188
The following is a multiple choice question (with answers). ===Question The classification of a dome structure is based on which of the following characteristics? ===Choices based on the shape of the hinge based on the thickness of walls based on symmetry based on the angle of elevation based on the design of the base...
based on the planar form
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103
The following is a multiple choice question (with answers). ===Question Solve the integral: $$ \int \frac{ -9 \cdot \sqrt[3]{x} }{ 9 \cdot \sqrt[3]{x^2} + 3 \cdot \sqrt{x} } \, dx $$ ===Choices -\left(C+\frac{1}{3}\cdot\sqrt[6]{x}^2+\frac{2}{27}\cdot\ln\left(\frac{1}{3}\cdot\left|1+3\cdot\sqrt[6]{x}\right|\right)+\fra...
-\left(C+\frac{1}{3}\cdot\sqrt[6]{x}^2+\frac{2}{27}\cdot\ln\left(\frac{1}{3}\cdot\left|1+3\cdot\sqrt[6]{x}\right|\right)+\frac{3}{2}\cdot\sqrt[6]{x}^4-\frac{2}{3}\cdot\sqrt[6]{x}^3-\frac{2}{9}\cdot\sqrt[6]{x}\right)
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627
The following is a multiple choice question (with answers). ===Question When exposed to slow neutrons, $Ir^{193}_{77}$ produces the radioactive isotope $Ir^{194}$ with a half-life of 19 hours. Calculate the radioactivity of an iridium target with a thickness of 0.1 millimeters and a cross-sectional area of 1 cm$^2$. If...
Approximately 4 microcuries
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215
The following is a multiple choice question (with answers). ===Question A 55-year-old woman presents to her physician complaining of acute pain and redness in her right eye, with nausea and vomiting. She repos seeing halos around lights. On examination, lacrimation, lid edema, conjunctival injection, a steamy cornea, a...
Acute closed-angle glaucoma
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246
The following is a multiple choice question (with answers). ===Question When a straight rectangular bar is subject to torsion, the correct conclusion is which one? ===Choices Torsion does not affect the bar's shape. Warping occurs after the cross-section is deformed. The bar shortens longitudinally under torsion. Tors...
Warping occurs after the cross-section is deformed.
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127
The following is a multiple choice question (with answers). ===Question The spontaneous expenditure multiplier in Keynesian theory can be applied to______. ===Choices only if consumer spending declines without influencing production only when reducing investment in an economy without idle resources only when there is ...
only when increasing investment in an economy with idle resources
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140
The following is a multiple choice question (with answers). ===Question The formation and development of management theory went through approximately (). I. Early Management Activities StageII. Early Management Thought Embryonic StageIII. Management Theory Formation StageIV. Modern Management StageV. Future Management ...
Ⅰ,Ⅱ,Ⅲ,Ⅳ
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134
The following is a multiple choice question (with answers). ===Question If public administration is a "factual domain" of decision-making and execution, then administrative ethics is a philosophical and moral ( ). ===Choices Moral legislation area Policy landscape Value Area Operational domain Legislative field Govern...
Value Area
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81
The following is a multiple choice question (with answers). ===Question The Persian Empire was the first empire in the ancient world to span three continents: Europe, Asia, and Africa. Its downfall marked the end of ancient civilizations in Western Asia and North Africa. Which country replaced the Persian Empire? ===C...
Alexander Empire
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106
The following is a multiple choice question (with answers). ===Question Neutral folding action results in unchanged thickness on the vertical plane at every point of the fold. Which of the following descriptions typifies this folding pattern? ===Choices Alternate folds Consecutive wrinkles Parallel folds Similar Folds...
Parallel folds
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87
The following is a multiple choice question (with answers). ===Question In gas chromatography, ( ) is commonly used as an auxiliary gas. ===Choices Air Carbon Monoxide Argon Water Vapor Neon Hydrogen Helium Nitrogen Oxygen Methane
Air
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63
The following is a multiple choice question (with answers). ===Question For $\mathbf{a}$ and $\mathbf{b}$, when the condition ( ) is satisfied, the solution $\mathrm{y}(\mathbf{x})$ of the equation $y^{\prime\prime}+ay^{\prime}+by=0$ as $x \to +\infty$ satisfies the relation $y(x)=o(e^{-x})$. ===Choices $2 < \mathrm{b...
$2 < \mathrm{a} < \mathrm{b}+1$
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267
The following is a multiple choice question (with answers). ===Question At 298K, the electromotive force of the following cell is measured to be 0.200 V. $$ Pt, H_{2} (p^{\Theta}) | HBr (0.100 mol \cdot kg^{-1}) | AgBr (s) | Ag $$ $\phi^{\Theta} (\mathrm{Br}^{-} \mid \mathrm{AgBr} \mid \mathrm{Ag}) = 0.071 \mathrm{V}$....
0.812
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208
The following is a multiple choice question (with answers). ===Question Which of the following is not a major application of hash functions? ===Choices Data Integrity Check Quick Search News Digest Data Encryption Password Storage Document Verification Tamper-proof Unique Identifier Authentication Protocol Digital Sig...
Data Encryption
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61
The following is a multiple choice question (with answers). ===Question The number of physical page frames is 4, and the virtual page access sequence is 0,3,2,0,1,3,4,3,1,0,3,2,1,3,4. What is the number of page faults when using the CLOCK replacement algorithm (using 1 bit to indicate the presence time)? ===Choices 9 ...
9
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106
The following is a multiple choice question (with answers). ===Question How many non-decreasing sequences $a_0, a_1, a_2, a_3, a_4, a_5, a_6$ of non-negative integers are there satisfying $a_i\leq i$ for $i=0,2,4,6$ ? ===Choices 551 555 556 550 559 552 558 553 554 557
554
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119
The following is a multiple choice question (with answers). ===Question Which of the following is a characteristic of a corporation? ===Choices Enhanced employee ownership Easier access to capital Easier transfer of ownership Exceptional individual liability Extensive regulatory requirements Exotic investment opportun...
Easier access to capital
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76
The following is a multiple choice question (with answers). ===Question The purpose of sample preparation is to ( ) ===Choices Integrate common elements, exclude detectable substances, and expand substance volume. Exclude harmful particles, maximally preserve testing molecules, and magnify the substance's presence. Ad...
Eliminate interference factors, fully retain the components being tested, and concentrate the substance being measured.
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189
The following is a multiple choice question (with answers). ===Question What do early lesions refer to in terms of the number of days of gingival inflammation? ===Choices 5-7 days 5-10 days 3-6 days 7-9 days 3-7 days 3-5 days 4-7 days 1-2 days 5-17 days 10-12 days
4-7 days
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88
The following is a multiple choice question (with answers). ===Question What is the Nernst Equation? ===Choices $$ j=-D (\nabla \Phi+\frac{z C F} {R T} \nabla C) $$ $$ j=-D ( \nabla C+\frac{z C F} {F R} \nabla\Phi) $$ $$ j=-D ( \nabla C+\frac{z C T} {F R} \nabla\Phi) $$ $$ j=D (\nabla \Phi+\frac{z C F} {R T} \nabla C)...
$$ j=-D ( \nabla C+\frac{z C F} {R T} \nabla\Phi) $$
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329
The following is a multiple choice question (with answers). ===Question Generally speaking, how does the ratio of free water to bound water change in the tissues of overwintering crops during the winter? ===Choices Dip slightly Remain stable Peak Elevate Increase significantly Heighten Decrease slightly Reduce Fluctua...
Reduce
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75
The following is a multiple choice question (with answers). ===Question In which year was the first edition of 'Dictionary of Greek and Roman Geography' published? ===Choices 1850 1851 1853 1854 1858 1857 1856 1859 1855 1852
1854
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84
The following is a multiple choice question (with answers). ===Question Calculate the amount (in milligrams) of $\displaystyle SeO_{3}^{2-}$ in solution on the basis of following data:$20$ mL of $\dfrac{M}{60}$ solution of $\displaystyle KBrO_{3}$ was added to a definite volume of $\displaystyle SeO_{3}^{2-}$ solution....
$$95$$
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336
The following is a multiple choice question (with answers). ===Question A vehicle moving on a straight road sounds a whistle of frequency 256 Hz while nearing a hill with a velocity 10 ms$^{-1}$. The number of beats per second observed by a person travelling in the vehicle is:   ($V= 330\ ms^{-1}$ ) ===Choices zero 16...
zero
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110
The following is a multiple choice question (with answers). ===Question For geomagnetic disturbances with a period of only 1000 years, what is the electromagnetic skin depth of the Earth's core? (Since the main components of long-term variations have periods of this order of magnitude, this estimate is valuable for the...
$z_0 = 153$ km
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159
The following is a multiple choice question (with answers). ===Question Which of the following water supply systems is classified according to different water supply methods? ===Choices Circulatory system Flow Resistance Type Direct Current System Standardized Service Reuse System Equal Distribution Plan Indirect Flow...
Gravity System
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71
The following is a multiple choice question (with answers). ===Question Two electrons are tightly confined to different neighboring positions in a certain solid. In this way, they are distinguishable and can be described by their respective Pauli spin matrices $\sigma^{(1)}$ and $\sigma^{(2)}$. Their Hamiltonian is giv...
$$ 3 $$ $$ 2 J, \ 0, \ -2 J $$
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350
The following is a multiple choice question (with answers). ===Question A pendulum of mass  $1{ kg }$  and length  $l = 1  { m }$  is released from rest at angle  $\theta = 60 ^ { \circ }.$  The power delivered by all the forces acting on the bob at angle  $\theta = 60 ^ { \circ }$  will be  $\left(  { g } = 10  { m } ...
$$13.4 W$$
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186
The following is a multiple choice question (with answers). ===Question The force of attraction between two charges separated by certain distance in air is F1. If the space between the charges is completely filled with dielectric of constant 4 the force becomes F2. If half of the distance between the charges is filled ...
36 : 9 :16
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179
The following is a multiple choice question (with answers). ===Question The most suitable γ-ray energy for SPECT imaging is ===Choices 300~400keV 511keV 200~350keV 364keV 60~80keV 150~400keV 100~250keV 40~120keV 80~180keV 450~600keV
100~250keV
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116
The following is a multiple choice question (with answers). ===Question The van der Waal's equation for a real gas may be rearranged to give: $$V_m^{3}-\left ( b+\dfrac{RT}{P} \right )V_m^{2}+\dfrac{a}{p}V_m-\dfrac{ab}{p}=0$$ Where $V_m$ is molar volume of the gas. Which of the following is correct? ===Choices At any ...
At temperature greater than $T_c$, there are three values of $V_m$, one real and two imaginary.
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252
The following is a multiple choice question (with answers). ===Question Let ` alpha, beta ` be two non-zero orthogonal column vectors in ` R^n `, and ` A = alpha beta^T `. Then ` A ` ( ) ===Choices may not necessarily be diagonalizable; may not be diagonalizable under certain conditions; may be diagonalizable if and o...
must not be diagonalizable;
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144
The following is a multiple choice question (with answers). ===Question Suppose a certain polymer has a glass transition temperature $T_{g}=320 \, \mathrm{K}$ and a density $\rho_{0}=1 \times 10^{3} \, \mathrm{kg \cdot m^{-3}}$. Its viscosity at 400 K is measured to be $10^{5} \, \mathrm{Pa \cdot s}$. Now, if a suffici...
$$ 8 6. 7 4 \mathrm{~ P a ~ \cdot~ s ~} $$
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484
The following is a multiple choice question (with answers). ===Question Calculate the heat flux through a sheet of brass 7.5 mm (0.30 in.) thick if the temperatures at the two faces are 150°C and 50°C (302°F and 122F); assume steady-state heat flow. ===Choices $$ 2. 1 0 \times1 0^{7} \mathrm{~ W / m}^{2} $$ $$ 1. 3 0 ...
$$ 1. 6 0 \times1 0^{6} \mathrm{~ W / m}^{2} $$
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364
The following is a multiple choice question (with answers). ===Question A solid sphere has linear velocity $v_0=4m/s$ and angular velocity ${ \omega  }_{ 0 }=9rad/s$ as shown. Ground on which it is moving is smooth. It collides elastically with rough wall of coefficient of friction $\mu .$ Radius of sphere $1 m$ and ma...
$$\dfrac{1}{4}$$
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215
The following is a multiple choice question (with answers). ===Question We now define an algorithm: The definition of a(n) is the (Mahler-Popken) complexity of n: the minimal number of 1's required to build the number n using only the operations of addition (+) and multiplication (*). Given the input x_list (a series o...
[13, 14, 12, 13, 13, 13, 13, 14, 13, 14]
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526
The following is a multiple choice question (with answers). ===Question In the motorcycle stunt called " the well of death" the track is a vertical cylindrical surface of $18 m$ radius. Take the motorcycle to be a point mass and $\mu= 0.8$. The minimum angular speed of the motorcycle to prevent him from sliding down sh...
$5/8 $ rad/s
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150
The following is a multiple choice question (with answers). ===Question The effect of force that changes the state of motion of an object is called force (). ===Choices External effects Static adjustment Dual motion changer Rotation effect Single direction Balanced resistance Translational effect Continuous impact Rel...
External effects
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68
The following is a multiple choice question (with answers). ===Question A short bar magnet of magnetic moment $12.8\times 10^{-3}Am^{2}$ is arranged in the magnetic meridian with its south pole pointing geographic north. If $B_H = 0.4$ Gauss, the distance between the null points is : ===Choices 8 cm 18 cm 6 cm 2 cm 12...
8 cm
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107
The following is a multiple choice question (with answers). ===Question This question refers to the following information. Perestroika [Restructuring] is an urgent necessity arising from the profound processes of development in our socialist society. This society is ripe for change. It has long been yearning for it. An...
a restructuring of the socialist society of the Soviet Union was necessary in order to avoid a crisis
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323
The following is a multiple choice question (with answers). ===Question Name the artist and radio broadcaster of Srinagar, Kashmir, who represented India in the 2002 International Exhibition of Quranic Paintings in Iran. ===Choices Arshad Sulayh Arshad Saule Arshad Sulayeh Arshad Suleh Arshad Sulaih Arshad Sulaim Arsh...
Arshad Sauleh
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115
The following is a multiple choice question (with answers). ===Question The formulation of educational objectives is influenced by many factors, among which the factors that determine the nature, direction, and connotation of educational objectives are () ===Choices Characteristics of the physical and mental developme...
Level of productivity and political and economic systems
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142
The following is a multiple choice question (with answers). ===Question The area of the figure enclosed by the parabola (y=- { { x}^{2}}+4x-3) and its tangent lines at the points ((0,-3)) and ((3,0)) is =( ). ===Choices (2) (frac{11}{4}) (frac{13}{4}) (frac{17}{4}) (frac{15}{4}) (frac{9}{4}) (frac{5}{4}) (frac{7}{4}) ...
(frac{9}{4})
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136
The following is a multiple choice question (with answers). ===Question In which year did Karl Wilhelm Reinmuth discover the asteroid 1182 Ilona in Heidelberg? ===Choices 1920 1923 1927 1921 1924 1926 1928 1922 1925 1929
1927
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89
The following is a multiple choice question (with answers). ===Question Reinforcing bars set at the transverse joints of cement concrete pavements serve as what? ===Choices Force-transferring bars Tension bars Weight-balancing bars Compression support bars Load-distributing bars Reinforcement bars Stress-relieving bar...
Force-transferring bars
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84
The following is a multiple choice question (with answers). ===Question What are the characteristics of strong hydrostatic pressure? ===Choices The magnitude of the hydrostatic pressure at any point depends only on the density of the fluid and not on the position. The size of the hydrostatic pressure at each location ...
The magnitude of the hydrostatic pressure at any point is independent of the direction of the action surface and only depends on the position of that point.
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274
The following is a multiple choice question (with answers). ===Question Consider a diatomic molecule gas composed of two different atoms. The gas is dilute, and the moment of inertia for molecular rotation about an axis through the center of mass and perpendicular to the line joining the two atoms is $I$. Evaluate the ...
$$ k N \Big( 1+\operatorname{l n} {\frac{2 I k T} {\hbar^{2}}} \Big) $$ $$ \approx{\frac{3 N \hbar^{2}} {I T}} A $$
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705
The following is a multiple choice question (with answers). ===Question The complexity of the circulatory system of arthropods is closely related to which of the following factors? ===Choices Dispersion and concentration of the respiratory system Arrangement and complexity of the muscular system Dispersion and functio...
Dispersion and concentration of the respiratory system
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127
The following is a multiple choice question (with answers). ===Question the content of information management is explained from an economic perspective,because of__ ===Choices the trade elements concerning the sharing, movement and consumption of insights, the construction, expansion, detailed traits and procedures of...
the information market based on the production, circulation and utilization of information, the formation, development, characteristics and operation mode of the information industry and information economy, the optimal allocation of information resources, the evaluation and selection of information technology, etc.
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512
The following is a multiple choice question (with answers). ===Question What is the eye adjustment activity that does not occur when the object being viewed moves from far to near ( ). ===Choices Eye muscle tension adjustment Lens curvature increases Lens becomes convex Pupil accommodation reflex Shift in retinal focu...
Pupil reflex to light
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79
The following is a multiple choice question (with answers). ===Question A rectangular waveguide filled with air has dimensions of $a \times b = 5 \; \mathrm{cm} \times 2.5 \; \mathrm{cm}$, and supports single-mode transmission. The measured wavelength in the waveguide is 0.25 m. Determine the operating frequency. ===C...
$$ 3. 2 4 {\mathrm{~ G H z}} $$
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261
The following is a multiple choice question (with answers). ===Question What song in Alan Walker's album "World of Walker" is only thirty-nine seconds long? ===Choices "Red Nexus Rising (Interlude)" "Faded (Interlude Extended Short)" "Faded (Interlude Version)" "Faded (Interlude Short Version)" "Faded (Interlude Short...
"Red Nexus Rising (Interlude)"
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109
The following is a multiple choice question (with answers). ===Question Which piece of art by Raphael was sold by Joseph Joel Duveen to Peter Arrell Browne Widener in 1913? ===Choices Portrait of a Young Man Large Cowper Madonna with Saint Elizabeth Large Cowper Madonna Large Cowper Madonna with Saint John and Saint E...
Small Cowper Madonna
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109
The following is a multiple choice question (with answers). ===Question What is the following set of measures that can improve the transient stability of power system in parallel operation under three-phase short circuit? ===Choices Quickly remove faults, swiftly shut down the steam turbine generator valve, and instal...
Quickly remove faults, swiftly shut down the steam turbine generator valve, and install reclosers on the circuit.
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172
The following is a multiple choice question (with answers). ===Question Suppose there are three routers between a source host and a destination host. Ignoring fragmentation, an IP datagram sent from the source host to the destination host will travel over how many interfaces? How many forwarding tables will be indexed ...
[8, 4]
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144
The following is a multiple choice question (with answers). ===Question The instant of time at which (starting from t=0) component of displacement along the x-axis is half the range on an inclined plane is ===Choices $$\frac{{3\sqrt 2 u}}{g}$$ $$\frac{{2u}}{g}$$ $$\frac{{4\sqrt 2 u}}{g}$$ $$\frac{{3u}}{g}$$ $$\frac{u}...
$$\frac{{u}}{\sqrt 2 g}$$
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191
The following is a multiple choice question (with answers). ===Question In Buddhism, what are the three determinations called when combined with the Right Determination Group, the Wrong Determination Group, and? ===Choices The Indecisive Group The Neutral Group The Variable Group The Indefinite Group The Undefined Gro...
The Indeterminate Group
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95
The following is a multiple choice question (with answers). ===Question What is the primary consideration in the design of conventional storage tanks in oil and gas storage and transportation engineering? ===Choices Tank shape Density Construction time Flow rate Volume Pressure Location Viscosity Temperature Storage c...
Pressure
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62
The following is a multiple choice question (with answers). ===Question If the first minima in a Young's double-slit experiment occurs directly in front of one of the slits (distance between slit and screen D=$12cm$ and distance between slits $d=5cm$), then wavelength of the radiation used can be ===Choices $$\dfrac{1...
$$\dfrac{2}{3}cm$$
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178
The following is a multiple choice question (with answers). ===Question Select the attribute value that fits the attribute compatible with vehicle type of product type luggage rack. ===Choices highway motorcycle street motorcycle cfl sport motorcycle 5200 x 3900 city motorcycle off-road motorcycle touring motorcycle s...
street motorcycle
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77
The following is a multiple choice question (with answers). ===Question Regarding the naming of microorganisms, the correct one is ( ). ===Choices Escherichia coli strain ATCC 35150 Lactobacillus reuteri subsp. fermentum Escherichia coli serotype O157:H7 Staphylococcus aureus biotype II Staphylococcus epidermidis biot...
Saccharomyces cerevisiae subsp. ellipsoideus
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167
The following is a multiple choice question (with answers). ===Question If a person cannot see objects clearly at a distance of 2.5 meters in front of their eyes, what diopter lens is needed to restore normal vision? Similarly, if another person cannot see objects clearly within 1 meter in front of their eyes, what dio...
-40 diopter glasses for nearsightedness, +300 diopter glasses for farsightedness
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328
The following is a multiple choice question (with answers). ===Question A piece of iron weighing 20.0 g at a temperature of 95.0°C was placed in 100.0 g of water at 25.0°C. Assuming that no heat is lost to the surroundings, what is the resulting temperature of the iron and water? Specific heats: iron = .108 cal/g\rule{...
26.48°C
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182
The following is a multiple choice question (with answers). ===Question Which is the main gas that absorbs longwave radiation? ===Choices Carbon dioxide Hydrogen Fluorine Nitrogen Oxygen Water vapor Argon Neon Methane Helium
Water vapor
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61
The following is a multiple choice question (with answers). ===Question What is the ATC code for iot Walker acid? ===Choices V08AA07 V08AB04 V08AA05 V08AA09 V08AA03 V08AA06 V08AC04 V08AA04 V08AA02 V08AA08
V08AA04
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98
The following is a multiple choice question (with answers). ===Question For any two random events (A) and (B) that satisfy the condition (AB=\bar{A}\bar{B}), then ===Choices (A \cup B = arnothing) (A \cup B = A \cup \bar{A}) (A \cup B = A \cup B) (A \cup B = A \cup \bar{B}) (A \cup B = A \cap \bar{B}) (A \cup B = B) ...
(A \cup B = \Omega)
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155
The following is a multiple choice question (with answers). ===Question Calculate the heat of formation of KOH from the following data in K.Cal. $K_{(g)}+H_2O+aq\rightarrow KOH_{(aq)}+\dfrac{1}{2}H_2$; $\Delta H=-48.4$K.Cal $H_{2(g)}+\dfrac{1}{2}O_{2(g)}\rightarrow H_2O_{(l)}; \Delta H=-68.44$ K.Cal $KOH_{(s)}+aq\right...
$$+102.83$$
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255
The following is a multiple choice question (with answers). ===Question Write the regular expression of the context-free grammar (CFG) following the requirements: A CFG that represents expressions in a programming language, limited to operators + and * (representing addition and multiplication). Arguments must be ident...
$(a + b)(a + b + 0 + 1)^*$
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290
The following is a multiple choice question (with answers). ===Question The designed horizontal distance between points A and B is 18m, and the survey needs to be carried out on the inclined ground.The standard tension is used during the survey, and the temperature during the survey is $t=8^{\circ}C$. The length equati...
18.045
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239
The following is a multiple choice question (with answers). ===Question The dielectric constant for a soda-lime glass measured at very high frequencies (on the order of $1 0^{15}$ Hz) is approximately 2.3. What fraction of the dielectric constant at relatively low frequencies (1 MHz) is attributed to ionic polarization...
0.67
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132
The following is a multiple choice question (with answers). ===Question In a certain project, the vertical bearing capacity of three test piles was obtained in a vertical static load test for a single pile, measuring 860kN, 880kN, and 890kN, respectively. According to the Chinese "Technical Code for Building Pile Found...
438kN
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177
The following is a multiple choice question (with answers). ===Question One mole of ammonium carbamate dissociate as shown below at $500K$ ${NH}_{3}COO{NH}_{4(s)\rightleftharpoons  2{NH}_{3}(g}+{CO}_{2}(g)$. If the pressure exerted by the released gases is $3.0$ atm, the value of ${K}_{p}$ is (standard state $=1atm$) ...
4
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131
The following is a multiple choice question (with answers). ===Question Which two telecom companies led the development of the SEA-ME-WE 3 submarine cable? ===Choices France Telecom and Indonesia Telecom France Telecom and China Telecom France Telecom and India Telecom France Telecom and Malaysia Telecom France Teleco...
France Telecom and China Telecom
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97
The following is a multiple choice question (with answers). ===Question In the historical record, Mao Jiao persuaded King Ying Zheng of Qin with his eloquence, ultimately changing the king's mind. Among the points made by Mao Jiao, which one do you think ultimately moved King Ying Zheng, who had already killed 27 other...
Mao Jiao pointed out that if King Ying Zheng did not change his ways, his reputation among the six states would be damaged, affecting the unification of Qin.
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356
The following is a multiple choice question (with answers). ===Question What is the fundamental period of the discrete signal $\mathrm{x( n )}=\operatorname{cos}(\pi n/5)cos(\pi n/4)$? ===Choices 20 60 18 4 80 36 10 24 12 40
40
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81
The following is a multiple choice question (with answers). ===Question Ornamental plants (flowers, trees, shrubs, etc.) are being selected, bred together, hybridized, etc., for specific traits and qualities that make them "better" than the originals (their parents). We discussed many of the possible traits and highlig...
sterility, compact plant size, re-blooming more than once (remontancy)
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199
The following is a multiple choice question (with answers). ===Question A charged particle of mass 'm' and charge 'q' moving under the influence of uniform electric field $E ec{i}$ and a uniform magnetic field $B ec{k}$ follows a trajectory from point P to Q as shown in figure. The velocities at P and Q are respectivel...
(A), (B), (C)
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305
The following is a multiple choice question (with answers). ===Question A block of mass m is pushed towards a movable wedge of mass nm and height h with a velocity u. All surfaces are smooth. Choose the correct statement from the following. ===Choices If the block overshoots P, the angle of projectile is $2\alpha$ If ...
If the block overshoots P, the angle of projectile is less than $\alpha$
general_qa
267
The following is a multiple choice question (with answers). ===Question In the episode "Myth of Fingerprints" from Law and Order, who played the character named Erica? ===Choices Ginnifer Goodwin (as a recurring star) Ginnifer Goodwin Ginnifer Goodwin (as a recurring guest star in the first season) Ginnifer Goodwin (a...
Ginnifer Goodwin
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155
The following is a multiple choice question (with answers). ===Question Kelvin the Frog generates an infinite sequence $a_n$ , which satisfies the relation $$$a_{m-n} + a_{m+n} = 2a_ma_n$$$ for any nonnegative integers $m\ge n$ . If $a_0 = 1$ , let $x$ be the largest possible value of $a_1$ such that $\prod^{\lfloor lo...
49
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201
The following is a multiple choice question (with answers). ===Question A spherical coil is formed by closely winding a thin wire with insulated surface along a fixed diameter on the surface of a sphere with radius $R$, with a number of turns per unit length $n$ along the diameter, and $n$ is the same everywhere. When ...
$$ B=\frac{2} {3} \mu_{0} \, n I \Big( \frac{R} {r} \Big)^{3} e_{I} \,, \quad r > R $$
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627
The following is a multiple choice question (with answers). ===Question The breaking strength $\mathrm{X}\ \mathrm{kg/cm^2}$ of a steel cable produced by a factory follows a normal distribution $N ( \mu, 4 0^{2} )$. Take a sample of volume 9 and get $\overline{{{X}}}=7 8 0 \mathrm{~ k g / c m^2}$. What is the value of ...
1.5
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181
The following is a multiple choice question (with answers). ===Question The charge  $Q$  (in coulomb) flowing through a resistance  $R = 10\Omega$  varies with time  $t$  (in second) as  $Q = 2 t - t ^ { 2 } .$  The total heat produced in resistance  $R$  is ===Choices \dfrac { 100 } { 7 } \mathrm { J } $$\dfrac { 40 ...
$$\dfrac { 40 } { 3 } \mathrm { J }$$
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268
The following is a multiple choice question (with answers). ===Question A young male presents with painful ulcers on the mouth and glans penis with blurred vision and history of recurrent epididymitis. Which of the following is the most probable diagnosis? ===Choices Behcet syndrome Reiter syndrome Oculocutaneous apht...
Behcet syndrome
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164
The following is a multiple choice question (with answers). ===Question Prepare 1 dm³ of an HA-NaAc buffer solution with a pH of 5. To ensure buffering capacity, the combined concentration of HAc and its conjugate base must be 2 mol·dm⁻³. Calculate the required amounts of 17 mol·dm⁻³ glacial acetic acid and 6 mol·dm⁻³ ...
$$ 0. 1 2 \ \mathrm{d m}^{3},\ 0. 2 2 \ \mathrm{d m}^{3},\ 0. 6 6 \ \mathrm{d m}^{3} $$
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687
The following is a multiple choice question (with answers). ===Question A drum vacuum filter with a diameter of 1.75 m and a length of $0.9 \, \text{m}$ has an immersion angle of 126° and a rotation speed of 1 r/min. The filtration constant under operational conditions is $K = 5.15 \times 10^{-5} \, \text{m}^2/\text{s}...
$9. 7 5 8 \mathrm{m}^{3} / \mathrm{h}$
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359
The following is a multiple choice question (with answers). ===Question Where does the retrograde sand wave in the riverbed occur? ===Choices Shallow water area Within a floodplain In a rocky outcrop Near the riverbank Underneath a bridge Fast-flowing current section Deep water channel In a tidal zone In a stagnant po...
In a tidal zone
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81
The following is a multiple choice question (with answers). ===Question What does the term "combatant status" signify in military law? ===Choices The lawful position of soldiers who are eligible to partake in conflict zones and are secured by the war regulations. The protocol status that regulates the conduct during w...
The legal status of individuals who are entitled to participate in hostilities and are protected by the laws of war.
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185
The following is a multiple choice question (with answers). ===Question For children of 10~20kg, the physiological requirement of fluid per hour is (). ===Choices kg×2+16 kg×2+14 kg×2+6 kg×2+2 kg×2+20 kg×2+10 kg×2+8 kg×2+18 kg×2+4 kg×2+12
kg×2+20
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103
The following is a multiple choice question (with answers). ===Question Which of the following regression analyses will encounter the issue of multicollinearity? ===Choices "Amount of fertilizer per mu" and "Square of the amount of fertilizer per mu" are models used as explanatory variables for "wheat yield per mu". "...
"Current Period Income" and "Previous Period Income" as explanatory variables for the consumption function in the "Consumption" model
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237
The following is a multiple choice question (with answers). ===Question Which of the following may be the reason for the no clinic action when administrated a certain drug for a specific disease or symptom? ===Choices Given the inherent biochemical processes, the pharmaceutical could exhibit null effects or alternativ...
As the under lying pathophysiology, the drug may take no effect or other spectrum of action in unaffected individuals and the concomitant disease can complicate interpretation of response to drug therapy, especially adverse effects.
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406
The following is a multiple choice question (with answers). ===Question Planning a highway, the projected traffic volume for its long-term design is 45,000 vehicles per day, with large vehicles making up 30% of the total traffic. The direction factor is $K_{D}=0.6$, and the terrain is flat. The design hourly traffic vo...
0.78
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199
The following is a multiple choice question (with answers). ===Question Which of the following sensor belongs to non-contact measurement? ===Choices strain gaug Capacitive proximity sensor Hydraulic pressure transducer piezoelectric accelerometer eddy current sensor moving coil speedometer Optical frequency analyzer M...
eddy current sensor
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82