芦根与淡竹叶具有的共同功效是（）
A.止呕
B.利尿
C.止咳
D.凉血
E.发汗
参考答案：B
I know you have got a smooth tongue, so don't talk me _____ buying it. [ ]
A. away
B. down
C. out
D. into
三法司
