抢救高温中暑的伤员，用净水或（）酒精擦伤员全身直至使皮肤发红，血管扩张以促进散热。
A.60%
B.50%
C.40%
参考答案：B
—Hi, Ann. How do you keep healthy?
—I drink milk every day. I think drinking milk is good me.
A．for
B．to
C．at
D．with
目前所用的知识表示形式有（）、（）、（）等
