单项选择题

We can conclude from the passage that we need to control noise pollution if ______.

A．we want to stay both psychologically and physically healthy
B．we don' t want to be physically destroyed
C．we want to cooperate well
D．we don' t want to be anxious

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热门试题

单项选择题

People enjoy listening to music, ______.

A．though they are receiving a lot of decibels of sound in fact
B．because it doses not have any negative effect
C．because they do not have to tolerate the noise around them
D．even though it is sometimes unpleasant hearing strange sounds

单项选择题

People waiting at an airport ______.

A．enjoy hearing airplanes taking off and landing
B．are usually not troubled by the noise
C．can easily tell sound from noise
D．are often physically affected by the noise