反应药物消除快慢程度的是（）.

A．血药浓度-时间曲线下面积

B．半衰期

C．达峰时间

D．峰浓度

E．表观分布容积

For a moment nothing happened, then       all shouting together.

A．voices had come

B．did voices come

C．voices would come

D．came voices