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

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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

单项选择题

---（）!
---Engine dead slow astern!

A. Dead slow astern
B. Engine slow astern
C. Engine half astern
D. Ready