具有预防肾结石形成作用的中药是（）
A.茯苓
B.石韦
C.车前子
D.地肤子
E.金钱草
参考答案：C
As students, we are supposed to _______ more time _______. [ ]
A. spend, studying
B. take, to study
C. spend, play computer games
D. take, to watch TV
龙胆泻肝汤中清利湿热的药物是（）
A.泽泻、车前子、茯苓
B.茯苓、车前子、木通
C.泽泻、车前子、木通
D.猪苓、茯苓、木通
E.泽泻、茯苓、木通
