单项选择题
A.passengers are strapped to their seats
B.fuel tanks are not less than half full
C.sea anchor is deployed to windward
D.lower ballast tanks are filled with water
单项选择题 In launching a lifeboat，when should the tricing pendants be released?（）.
单项选择题 In evacuation from a ship，an individual without the option of a survival craft or liferaft should enter the water on the leeward side，except when（）.
单项选择题 If you are forced to abandon ship in a lifeboat，you should（）.