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單項選擇題

The person who is in overall command of a ship is （）.

A. captain
B. chief officer
C. chief engineer
D. pilot

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單項選擇題

Who is the head of a ship? （）

A. Captain.
B. Chief mate.
C. Bosun.
D. Chief engineer.

單項選擇題

Are you the sailor on duty?（）

A. Yes, you are.
B. You are right.
C. Yes, I am.
D. Not at all.