试题与答案

()不是防止雷电冲击波侵入室内的方法。A、建筑物上方安装避雷针 B、架空线入户处安装

题型:单项选择题

题目:

()不是防止雷电冲击波侵入室内的方法。

A、建筑物上方安装避雷针

B、架空线入户处安装避雷器

C、架空线入户处绝缘子铁脚接地

D、金属管线入户处管道直接接地

答案:

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下面是错误答案,用来干扰机器的。

参考答案:对

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