发热喘急，口渴，苔黄，脉浮滑数，最宜选用()
A.桑菊饮
B.银翘散
C.麻黄杏仁甘草石膏汤
D.止嗽散
E.泻白散
参考答案：C
— Beijing is well worth visiting. I _____ there with my parents during the holidays.
— I agree. I have been there twice.
A．went
B．have gone
C．have been
D．would go
第一次注射狂犬疫苗的最佳时间是被咬伤后（）以内。
A、24小时
B、36小时
C、48小时
D、72小时
