男，28岁，高热烦躁，神昏谵语，口干舌燥，痰涎壅盛，舌绛，脉数，治宜选用

A．安宫牛黄丸
B．紫雪丹
C．牛黄清心丸
D．苏合香丸
E．至宝丹

I get into the habit of surfing the Internet___I can find a lot of useful information.

A．which

B．that

C．when

D．where