From the passage we learn that man dies in sea disasters mainly because______ Daedalus’s survival water garment can______

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问题 From the passage we learn that man dies in sea disasters mainly because______
Daedalus’s survival water garment can______

选项 A、generate heat.
B、generate gas and heat.
C、help the wearer swim and keep warm.
D、help the wearer float.

答案B

解析
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