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
单项选择题 After being rescued from the vessel accident，the people agreed that they had much to（）.
单项选择题 After being launched from a vessel，totally enclosed survival craft which have been afloat over a long period require（）.
单项选择题 Admiralty EasyTide（）.
