具有镇静催眠作用的清热药是（）
A.苦参
B.金银花
C.黄连
D.大青叶
E.青蒿
参考答案：C
苦参具有的功效是( )
A．夏枯草B．石膏C．淡竹叶D．栀子E．黄芩
A lot of new questions _____ at the meeting, which made things more worse. [ ]
A. came across
B. came on
C. came up
D. came in
