既能补脾益气,润肺止咳,又具有缓急止痛,缓和药性功效的药物是()
A.山药
B.白术
C.黄芪
D.甘草
E.党参
参考答案:D
She made a________in our plan to play basketball when it started to rain. [ ]
A. turn
B. switch
C. point
D. exchange
律师代理涉外民事诉讼的作用有哪些?