患者，女，32岁。临时工，夏天高温季节，在闷热车间劳动后出现头痛、恶心、呕吐，体温41°C，HR130次/分，BP100/50mmHg，拟中暑。

用15℃冷水反复擦湿皮肤，治疗中暑的原理是（）

A.传导散热降温

B.蒸发散热降温

C.体内降温

D.减少产热

E.适应环境

- May I go to the movies with you?

- I'm afraid not ，        you have a ticket, because I have only one.

A． if                    B. unless                C. though