1. A unit is hit by a lightning shield (assuming that the four charges around the lightning shield are point charges), but it will not be damaged. This is because (I don't know); Suppose an infantryman standing near him is not injured, because (that that. . . It's really hard).
A, the sum of unit short circuit B, electrostatic shielding C and surrounding four-point field strength vectors is 0 D, and it is self-insulated.
If a musketeer stands next to him and dies soon, then the potential difference between the lightning shield and the earth is at least (A).
a、36V B、72V C、 1 10V D、220V
2. If three identical biological units A, B and C are hit by the flame storm of bloodmage, the frost star of the Lich and the corrosion of Chimera respectively (assuming they can be hit), most of the enzyme activities in their bodies will be (B).
A, enhance B, weaken C, enhance first and then weaken D, weaken first and then enhance.
If the magic on them is dispelled at the same time, the activity of the enzyme will change (A).
a、a B、b C、C
3. Batrider's unstable compound (i.e. self-explosion) is extremely powerful. If the compound (mixture) is a simple inorganic substance that can be used at any time and is not black, then it is most likely one of the following: (d)
A, X, K, B, high fluorine acid C, hydrogen+oxygen D, hydrogen+fluorine gas
4. A certain gentleman trained four tauren soldiers in the competition and let them form a team. Then the probability that the team will use crushing in the battle is (a). (Keep two decimal places)
a、68.36% B、78.6 1% C、98.67% D、 100.00%
Within the range of 25, what the team expects to crush and cause damage to enemy units is (a).
a、 15 B、30 C、45 D、60
The variance is (a).
a、900 B、 1800 C、2700 D、3600
5, hidden magic can be invisible, its most likely physical principle is: (a)
A, all the light that shines on it will be reflected.
B, all the light that shines on it will be absorbed.
C, the particles that make up the hidden magic are small enough (less than the wavelength of violet light), so that light diffracts when it passes through its gap.
D, the light is distorted near the hidden magic, so that the light that finally leaves is in the same straight line and in the same direction as the original light.
According to this principle, the following are most likely to be used as anti-invisibility: (d)
A, ultra-high frequency, people can't hear ultrasonic waves.
B, magnesium light, high intensity, many photons per unit area.
Low frequency, long wavelength and strong diffraction infrared ray
D, extremely short wavelength, extremely high frequency and extremely high photon energy, mainly particle gamma rays.
6, Terran tanks siege speed is unparalleled. We assume that the mass of the tank is 100 times that of the shell, the landing speed of the shell is V, N shells are fired every second, and the sliding friction coefficient between the tank and the ground is μ. Regardless of the influence of the remaining shells on the quality of the tank, the launch time is extremely short, and the body stops in a very short time. Then the distance for the tank to retreat after t seconds is (b).
a、vvnt/50μg B、vvnt/20000μg C、vv/ 100g D、0
7. The fire phoenix summoned by bloodmage will lay an egg after death and continue to hatch. Assuming that the fire phoenix is diploid and the above reproduction mode is parthenogenesis, the number of chromosomes of the hatched small fire phoenix is (a); If the phoenix continues to lay eggs after death, then the chromosome number of the phoenix is (B).
A, 1/2N B, N C, 2N D, because of the lack of males, there is no chromosome.
In the process of laying eggs and incubating phoenixes, (a) you must not participate.
A, gene mutation B, gene recombination C, mitosis D, DNA transcription into mRNA.
8. Bodies manipulated by the Death Knight will fight for the controller of the Death Knight. So are they still conscious? (2)
A, with B, without C, let's see if * * is a creature.
What kind of philosophy does this reflect? (1)
First, consciousness exists independently of matter.
B, matter and consciousness are interdependent, * * * life * * * out.
C. consciousness of material dependence: if there is material, there must be consciousness on which it depends, but the consciousness of existence does not necessarily have material dependence.
D, consciousness depends on material existence: existential consciousness must exist the material it is attached to, but existential material does not necessarily have conscious attachment.
Gargoyle's disease can accelerate the recovery of life. The statement about the main changes of Gargoyle's body in this process is correct (B).
A, this is a process of absorbing surrounding substances and energy, synthesizing organic matter and storing energy.
B, this is a process of decomposing organic matter, releasing energy and synthesizing ATP from the released energy.
C, this is a process of decomposing organic matter and releasing energy, thus lowering body temperature and protecting injured tissues from further deterioration.
D, this is a process of reducing the metabolic rate in the body and maintaining the physiological function of the body.
Chemical composition analysis shows that the contents of elements in the body remain unchanged during Gargoyle hardening, so Gargoyle hardening is most likely caused by isomerization of the following elements? (4)
A, iron b, silicon c, carbon d, calcium
What kind of crystal does this isomer belong to? (3)
A, ionic crystal b, molecular crystal c, atomic crystal d, metal crystal
10, after Arthas became the Lich King, Jaina chose the most suitable time to visit him on the frozen throne. So what's wrong with the situation around the world at this time is (a).
A, Australia's noon sun height angle is the largest.
B, the rainy season is close to the Mediterranean.
C, the west coast of the continental United States is controlled by the subtropical high belt.
D, the Antarctic circle can't see the sun all day.
Hehe, I passed the exam, not bad. I'm a girl.