After launching，an inflatable raft should be kept dry inside by（）.<br>A:opening the automatic drain plugs<br>B:draining the water pockets<br>C:using the electric bilge pump<br>D:using the bailers and cellulose sponge

After launching，an inflatable raft should be kept dry inside by（）.
A:opening the automatic drain plugs
B:draining the water pockets
C:using the electric bilge pump
D:using the bailers and cellulose sponge

出自：海船船员证

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