These men are ____ cards on the train. [ ]
A. play
B. plays
C. playing
D. played
答案:C
属于药品标准类的药学核心典籍是
A.《新编药物学》B.《中国药典》(2005版)C.《药物研究》D.《药名检索词典》E.《中国药学文摘》