To keep injured survivors warm in the water after abandoning a ship，they should（）.<br>A:be placed in the middle of a small circle formed by the other survivors in the water<br>B:float on their backs with their arms extended for maximum exposure to the air<br>C:remove their life preservers and hold on to the uninjured survivors<br>D:sip seawater at intervals of fifteen minutes

To keep injured survivors warm in the water after abandoning a ship，they should（）.
A:be placed in the middle of a small circle formed by the other survivors in the water
B:float on their backs with their arms extended for maximum exposure to the air
C:remove their life preservers and hold on to the uninjured survivors
D:sip seawater at intervals of fifteen minutes

出自：海船船员证

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