251 電源電壓過低時，運轉電流增大，易使馬達線圈燒毀。(A)O(B)X

問題詳情

251 電源電壓過低時，運轉電流增大，易使馬達線圈燒毀。
(A)O
(B)X

參考答案

答案：A
難度：非常簡單1
統計：A(1),B(0),C(0),D(0),E(0)

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