單項(xiàng)選擇題

After abandoning ship, you should deploy the sea anchor from a life raft to（）.

A.keep the life raft from capsizing
B.navigate against the current
C.keep personnel from getting seasick
D.stay in the general location

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單項(xiàng)選擇題

After being launched from a vessel, totally enclosed survival craft which have been afloat over a long period require（）.

A.frequent opening of hatches to permit entry of fresh air
B.regular checks of bilge levels
C.use of ear plugs to dampen engine noise
D.frequent flushing of the water spray system with fresh water

單項(xiàng)選擇題

After each reading of an oxygen indicator, the instrument should be purged with（）.

A.CO₂
B.fresh air
C.the tested compartment's air
D.water