問題詳情
23. 電氣開關之輸出接點 a 與 b 分別代表
(A)常開與常開
(B)常開與常閉
(C)常閉與常閉
(D)常閉與常開 接點。
(A)常開與常開
(B)常開與常閉
(C)常閉與常閉
(D)常閉與常開 接點。
參考答案
答案：B
難度：非常簡單0.9
統計：A(0),B(9),C(0),D(1),E(0)
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