单项选择题
In an open lifeboat，the lifeboat compass is usually（）.
A.placed in a fixed bracket when being used B.clamped to any position convenient for the coxswain to see it C.permanently mounted on the lifeboat's centerline D.mounted in the center of the boat to eliminate deviation
单项选择题 If you must land on a beach with an oar-propelled lifeboat through a heavy surf，the recommended method is to（）.
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（）.
