单项选择题
After abandoning ship which action should be taken IMMEDIATELY upon entering a liferaft?（）
A.Open equipment pack B.Issue anti-seasickness medicine C.Cut painter and clear the ship D.Dry the liferaft floor and inflate
单项选择题 A rigid lifesaving device only designed for survivors to hold on to while in the water is a（）.
单项选择题 A rigid lifesaving device designed to support survivors in the water is a（）.
单项选择题 A liferaft which has inflated bottom-up on the water（）.
