单项选择题
Each lifeboat must be lowered and maneuvered in the water at least once every（）.
A.2 months
B.3 months
C.4 months
D.5 months
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相关考题
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单项选择题
During the required periodic abandon ship drill aboard a ship，each person not assigned duties in the muster list is（）.
A.instructed in the use of portable fire extinguishers
B.shown a video demonstrating lifeboat launching
C.instructed in the use of life jackets
D.not required to attend the boat drill -
单项选择题
During a fire drill on a ship，what action is required?（）
A.Start each fire pump
B.Launch and run a lifeboat
C.Inventory rescue and fire equipment
D.Inspect fire hoses -
单项选择题
After abandoning ship，you should deploy the sea anchor from a liferaft to（）.
A.keep the liferaft from capsizing
B.navigate against the current
C.keep personnel from getting seasick
D.stay in the general location
