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29.將交變的感應電流轉變為直流電時,必須經過換向手續,此種作用稱為:(A)切割磁力線(B)整流(C)補償(D)電樞反應
問題詳情
29.將交變的感應電流轉變為直流電時,必須經過換向手續,此種作用稱為:
(A)切割磁力線
(B)整流
(C)補償
(D)電樞反應
參考答案
答案:B
難度:簡單0.876543
統計:A(4),B(71),C(3),D(3),E(0)
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