The duty （） should do the cleaning work every morning.

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

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单项选择题

---（）!
---Engine dead slow astern!

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

单项选择题

---（）!
---Both engines stopped!

A. Stop engine
B. Stop both engines
C. Stop port
D. Stop them

单项选择题

--- （）!
---Engine Stopped!

A. Stop engine
B. Stop port
C. Stop starboard
D. All port

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