试题与答案

司机使用的音响信号中()表示“注意”。A.一短声 B.二短声 C.长声 D.三短声

题型:单项选择题

题目:

司机使用的音响信号中()表示“注意”。

A.一短声

B.二短声

C.长声

D.三短声

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C

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