单项选择题
A.keep the liferaft from capsizing
B.navigate against the current
C.keep personnel from getting seasick
D.stay in the general location
单项选择题 According to the ship regulations，the capacity of a liferaft is required to be marked（）.
单项选择题 According to the regulations for lifeboat falls，which action must be taken with the falls no later than 5-year intervals?（）
单项选择题 According to the regulations for life boat falls，which action must be taken at 30-month intervals?（）