试题与答案

双重绝缘是兼有()的绝缘 A.工作绝缘和基本绝缘 B.保护绝缘和附件绝缘 C.工作绝

题型:单项选择题

题目:

双重绝缘是兼有()的绝缘

A.工作绝缘和基本绝缘

B.保护绝缘和附件绝缘

C.工作绝缘和保护绝缘

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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