更多"Lightning is a ______ of electrical"的相关试题:
[单项选择]A cold current is approaching from the north. We must take immediate measures to ______ crops ______ the cold.
A. protect, from
B. prevent, from
C. separate, from
D. free, from
[单项选择]He was frightened by（）lightning.
A. bolt of
B. a piece of
C. a flash of
D. a
[单项选择]Lightning has been the second largest storm killer in the US over the past 40 years and is ______ only by flood.
A. exceeded
B. excelled
C. excluded
D. extended
[单项选择]"Whenever anyone annoyed Lightning, he would become so angry he would burn buildings and knock down trees. "From this sentence, we can know that ______.
A. Lightning liked to tease people
B. Lightning was very patient with people
C. Lightning could not control his temper
D. Lightning liked to play jokes on people
[单项选择]Why were Thunder and Lightning sent away into the sky
A. They would live a better life in the sky.
B. They were frightened by people on the earth.
C. People hoped they would not be able to do any more damage since they were far away from them.
D. People respected them too much.
[单项选择]Lightning-caused fires can be controlled quickly by ______.
A. holding the fire damages to a minimum
B. people who have changed their attitude and behavior
C. enough rue fighters with good fire-fighting devices
D. carrying out experiments in "seeding" thunder clouds
[单项选择]"Thunder would shout loudly at Lightning when he was annoying the villagers and behaving in a wicked way. "That means ______.
[单项选择]Lightning (tends to) strike the nearest (good conductor), and hence often strikes (in same) place more (than once).
A. tends to
B. good conductor
C. in same
D. than once
[单项选择]You see the lightning （） it happens, but you hear the thunder later.
A. for an instant
B. on the instant
C. the instant
D. in an instant
[单项选择]We see lightning (before we) hear the thunder (because) sound travels (more slowly) than (light is).
A. before we
B. because
C. more slowly
D. light is
[单项选择]A blinding ______ of lightning flashed across the sky.
A. strip
B. stripe
C. band
D. streak
[单项选择]According to Dr. Scorer, lightning is caused by______.
A. rain falling through clouds
B. hail falling through supercooled clouds
C. hail falling through superheated clouds
D. ice particles falling through any clouds
[单项选择]Compared to common electrical conductors, superconductors
A. have little or no electrical resistance.
B. can be used for a long time.
C. are not energy-efficient.
D. can be made easily.
[单项选择]Electrical energy may be divided into two components ______ as positive and negative.
A. distinguished
B. specified
C. separated
D. indicated
[单项选择]Electrical appliance such as toasters or hair dryers are designed to ______ the ability of an electric current to heat a wire.
A. take the risk of
B. take advantage of
C. take responsibility
D. make sense of
