单选题
Noise differs from sound in that ______.
A、
noise interferes with the task being done
B、
noise is a special type of loud sound
C、
noise is usually unavoidable in big cities
D、
noise can be defined more precisely than sound
【正确答案】
A
【答案解析】
[精解] 文章的第四行：That noise is sounds that are unrelated to the task at hand．
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