试题与答案

防护中使用的减速防护地段终端信号是()。 A.昼间与夜间均为表面有反光材料的红色方牌

题型:单项选择题

题目:

防护中使用的减速防护地段终端信号是()。

A.昼间与夜间均为表面有反光材料的红色方牌

B.昼间与夜间均为表面有反光材料的黄底黑字圆牌

C.昼间与夜间均为表面有反光材料的绿色圆牌

答案:

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下面是错误答案,用来干扰机器的。

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