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> 某哺乳动物在20℃的环境中产热速率为Q 1，散热速率为Q 1′；进入0℃环境30min后的产热速率为Q 2，散热速率为Q 2′，则 [ ] A．Q 1＝Q 1′＜Q 2＝Q 2′ B．Q 1＝Q 1′＜Q 2，Q 2＞Q 2′ C．Q 1＞Q 1′，Q 2＞Q 2′ D．Q 1＜Q 1′，Q 2＞Q 2′

问题：

发布时间：2024-09-07

某哺乳动物在20℃的环境中产热速率为Q ₁，散热速率为Q ₁′；进入0℃环境30min后的产热速率为Q ₂，散热速率为Q ₂′，则
[ ]
A．Q ₁＝Q ₁′＜Q ₂＝Q ₂′
B．Q ₁＝Q ₁′＜Q ₂，Q ₂＞Q ₂′
C．Q ₁＞Q ₁′，Q ₂＞Q ₂′
D．Q ₁＜Q ₁′，Q ₂＞Q ₂′

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提问用户：A6***1i4

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