我国对尿甾体性激素“秋石”是世界制药化学史上的光辉业绩,最早记载于
A.《证类本草》
B.《炮炙论》
C.《本草纲目》
D.《苏沈良方》
E.《本草衍义》
参考答案:B,E
-----Oh, Tom, what did you do this summer vacation?
-----Guess what? I had _____ great fun in _______ show performance “the voice of China”.
A.a, the
B.the, the
C./,a
D./, the
简述专业在线调查的优势。