单项选择题
A.keep the bow directly in toward the beach，and tow the sea anchor off the stern
B.ride in on the back of a large breaker
C.keep the bow into the seas with the sea anchor out over the bow，and row to meet the breaking waves
D.head directly into the beach by staying between the crests of the waves
单项选择题 If you have to jump in the water when abandoning a vessel，your legs should be（）.
单项选择题 If the coxswain of your lifeboat gives the command HOLD WATER you should（）.
单项选择题 For a ship not on an international voyage，an approved substitute for an impulse projected rocket-type line throwing appliance is a（）.