试题与答案

均匀电场中的同一间隙,当介质为()时其沿面工频闪络电压为最高。 A.空气 B.石蜡

题型:单项选择题

题目:

均匀电场中的同一间隙,当介质为()时其沿面工频闪络电压为最高。

A.空气

B.石蜡

C.玻璃

D.陶瓷

答案:

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