单项选择题
A.1.5,0.5 B.1.0,0.1 C.0.5,0.15 D.0.15,0.15 E.0.1,0.05
A.维生素A B.维生素K C.维生素C D.维生素B12 E.维生素pp
A.胃 B.口腔 C.膀胱 D.肝脏 E.肠道