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單項選擇題

Continuous sounding of a fog whistle by a vessel is a signal（）.

A.that the vessel is anchored
B.to request the draw span of a bridge to be opened
C.of distress
D.that the vessel is broken down and drifting

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單項選擇題

Before entering the chain locker，you should（）.

A.have someone standing by
B.make sure there is sufficient air within the locker
C.de-energize the windlass
D.All of the above

單項選擇題

According（）the report，the ship hit the wharf when berthing.

A.of
B.to
C.for
D.on