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When working on a high voltage circuit, you should...

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单选题

When working on a high voltage circuit, you should always have another person present with you.This person should have a good working knowledge of （）

发布日期：2021-03-22

A.the circuit being worked on and the location of all switches and circuit breakers controlling it

B.first-aid techniques for treating electrical shock

C.cardiopulmonary resuscitation (CPR)

D.All of the above

标签： working high voltage circuit person

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