單項選擇題

On a ship，how many ring buoys are required to have a buoyant line attached?（）

A.One ring life buoy
B.One ring life buoy on each side of the ship
C.Three ring life buoys
D.Two ring life buoys on each side of the ship

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單項選擇題

On a ship，firefighting equipment must be inspected once every（）.

A.three months
B.six months
C.twelve months
D.eighteen months

單項選擇題

On a ship，a fixed carbon dioxide or other approved system must be installed（）.

A.where oil or chemical drums are stored
B.in all battery storage locations
C.in paint lockers
D.in all of the above locations

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