单项选择题
If the hydrostatic release mechanism for an inflatable liferaft is not periodically serviced and becomes inoperative，it will NOT（）.
A.set the water lights on immersion B.release the dye-marker from the liferaft C.free the liferaft from the vessel D.break the seal on the carbon dioxide cylinder
单项选择题 If an inflatable liferaft is to be released manually，where should the operating cord be attached before throwing the raft overboard?（）
单项选择题 If an inflatable liferaft is overturned，it may be righted by（）.
单项选择题 If an inflatable liferaft inflates upside down，you can right it by（）.
