12.當駕駛台收到機艙之主機故障通知時,應立即懸掛下列何種信號標誌與號燈?
(A)運轉力受限制
(B)主機停俥
(C)操縱失靈
(D)拋錨

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統計: A(21), B(2), C(162), D(1), E(0) #626845