试题与答案

如图所示,要使电压表测灯L2两端的电压,正确的电路图是[ ] A. B. C.

题型:选择题

题目:

如图所示,要使电压表测灯L2两端的电压,正确的电路图是[ ]

A.

B.

C.

D.

答案:

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