单项选择题
A.hoist man B.limit switch C.brake handle D.preventer bar
After launching，an inflatable raft should be kept dry i...
单项选择题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
After jacking down your liftboat you have an unexpected...
单项选择题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
After being rescued from the vessel accident，the people...
单项选择题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
