She often helps the old ____ their housework.[ ]
A. of
B. in
C. at
D. with
答案：D
属十九畏内容的是（）
A.黄芪配茯苓
B.当归配芍药
C.乌头配瓜蒌
D.干姜配细辛
E.丁香配郁金
完整的汽车销售流程由几个主要环节组成？
