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

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单项选择题

---Stand by engine!
---Reply: Stand by engine!
---Report: （）.

A. Stand by
B. Stand by engine
C. Engine stand by
D. OK

单项选择题

A. Get the engine ready.
B. Ring off engine.
C. Stop engine.
D. Stand on it.

单项选择题

A.officer
B.motorman
C.sailor
D.engineer