单项选择题
A.0.3mg B.0.95~1.05 C.1.5 D.6 E.10
A.3500cm-1 B.2970cm-1 C.1700cm-1 D.1615cm-1 E.870cm-1
A.蔗糖 B.乳糖 C.地高辛 D.洋地黄毒苷 E.葡萄糖注射液