组成药物中含有牛膝的方剂是()
A.芍药汤
B.龙胆泻肝汤
C.清营汤
D.导赤散
E.玉女煎
参考答案:E
下图中,表示实地范围最大,内容最简略的是( )
I find __ difficult to remember everything, though I am still young. [ ]
A. that
B. this
C. it