单项选择题
---Dead slow ahead! ---Reply: （）. ---Report: Engine dead slow ahead.
A. No problem B. OK C. Dead slow ahead D. Yes
---Stand by engine! ---Reply: Stand by engine! ---Repor...
---Stand by engine! ---Reply: Stand by engine! ---Report: （）.
A. Stand by B. Stand by engine C. Engine stand by D. OK
Stand by engine. （）A. Get the engine ready.B. Ring off...
单项选择题Stand by engine. （）
A. Get the engine ready. B. Ring off engine. C. Stop engine. D. Stand on it.
The duty （） should do the cleaning work every morni...
单项选择题The duty （） should do the cleaning work every morning.
A.officer B.motorman C.sailor D.engineer
