單項選擇題

Please tell the duty AB to lower the （）.

A.winch
B.radar
C.gangway
D.pilot ladder

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單項選擇題

When a ship is in port, （）must keep a gangway watch.

A.officers
B.crew members
C.sailors
D.bosun

單項選擇題

A （）should be placed on the gangway.

A.life-buoy
B.life-raft
C.life-boat
D.life craft