试题与答案

在检查高压设备的接地故障时,室内不得接近接地点()m以内。A、4B、8C、20

题型:单项选择题

题目:

在检查高压设备的接地故障时,室内不得接近接地点()m以内。

A、4

B、8

C、20

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A

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