叶天士曾说:“在表初用辛凉轻剂”,就是指用()。
参考答案:桑菊饮
下列有机物一氯取代物的同分异构体数目相等的是
A.①和②
B.②和③
C.③和④
D.①和④
Chinese government is ready to accept public-private partnerships in order to provide the healthcare service for all segments of society.