A-A+

In order to change the direction of rotation of a D.Cmotor _____(1) the field leads must b

2018-05-04 09:47:01 其它问题 阅读 25441 次

问题详情

In order to change the direction of rotation of a D.Cmotor _____(1) the field leads must be changed; (2) the input leads must be changed

A.(1) only

B.(2) only

C.either (1) or (2)

D.neither (1) or (2)

请帮忙给出正确答案和分析,谢谢!

参考答案

题库:
考点:正确答案

分享到: