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單項(xiàng)選擇題

A lookout can leave his station（）.

A.at the end of the watch
B.at any time
C.ONLY when properly relieved
D.15 minutes before the end of the watch

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單項(xiàng)選擇題

A look-out at the bow sights an object on your port side. How many bell strokes should he sound? （）

A.One
B.Two
C.Three
D.Four

單項(xiàng)選擇題

A helmsman receives the command Right 15 degrees rudder. The helmsman’s IMMEDIATE reply should be（）.

A.Aye Aye Sir
B.Right 15 degrees rudder
C.Rudder is right 15
D.No reply is necessary，just carry out the order

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