單項(xiàng)選擇題

After launching，an inflatable raft should be kept dry inside by（）.

A.Opening the automatic drain plugs
B.Draining the water pockets
C.Using the electric bilge pump
D.Using the bailers and cellulose sponge

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單項(xiàng)選擇題

After jacking down your liftboat you have an unexpected list.You find that the only cause of this list must be a flooded leg.Your next course of action should be to（）.

A.Jack the vessel back up to a safe height
B.Proceed on to your next destination since the list is unimportant
C.Pump out all ballast to gain reserve buoyancy
D.Notify the Coast Guard

單項(xiàng)選擇題

After being rescued from the vessel accident，the people agreed that they had much to（）.

A.thank
B.be thankful
C.be thanked
D.be thankful for

After launching，an inflatable raft should be kept dry inside by（）.

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After jacking down your liftboat you have an unexpected list.You find that the only cause of this list must be a flooded leg.Your next course of action should be to（）.

After being rescued from the vessel accident，the people agreed that they had much to（）.

After being rescued from the vessel accident，the people agreed that they had much to（）.