单选题Prior to entering a davit-launched liferaft，you should make sure that（）.Athe liferaft is well ventilated of excess carbon dioxideBall personnel have removed their life preservers to facilitate boardingCthe door flap has been cut away and stowed inside the raftDAll of the above
单选题
Prior to entering a davit-launched liferaft，you should make sure that（）.
A
the liferaft is well ventilated of excess carbon dioxide
B
all personnel have removed their life preservers to facilitate boarding
C
the door flap has been cut away and stowed inside the raft
D
All of the above
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