单项选择题
If an inflatable liferaft is overturned，it may be righted by（）.
A.filling the stabilizers on one side with water B.releasing the CO2 cylinder C.pushing up from under one end D.standing on the inflating cylinder and pulling on the straps on the underside of the raft
单项选择题 If an inflatable liferaft inflates upside down，you can right it by（）.
单项选择题 How should signal flares be used after you have abandoned ship and are adrift in a liferaft?（）.
单项选择题 Generally，what is used to inflate liferafts?（）.
