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The star formation is most commonly used and requires_____ on the alternator.A.one slip-ri

2020-09-28 00:27:35 资格考试 阅读

问题详情

The star formation is most commonly used and requires_____ on the alternator.

A.one slip-ring

B.two sliprings

C.three sliprings

D.four sliprings

请帮忙给出正确答案和分析,谢谢!

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