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單項(xiàng)選擇題

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

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

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---（）!
---Engine dead slow astern!

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

單項(xiàng)選擇題

---（）!
---Both engines stopped!

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