下列关于人体在寒冷环境中体温调节的叙述中,错误的是       

下列关于人体在寒冷环境中体温调节的叙述中,错误的是                  

A.寒冷时人体可通过骨骼肌不自主的颤抖来增加产热

B.受寒冷刺激,皮肤毛细血管收缩,这是一个非条件反射

C.寒冷环境中,人体代谢增强,产热增多与多种激素的分泌增多有关

D.寒冷环境中正常人的产热速率大于20℃时产热速率,散热速率则小于20℃时散热速率

答案

D

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