单项选择题

"Sound", as defined by the psychologist,______.

A．can be measured in the same way that "noise" is measured
B．may be extremely harmful to health
C．is not at all different from "noise"
D．can be measured by machines

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热门试题

单项选择题

According to the passage, people______.

A．can not complete his work in a noisy situation
B．will suffer from complete deafness because of noise pollution
C．can be psychologically affected by working in very noisy factories
D．may cooperate well in a noisy surrounding

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 does 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