A.重氮化-偶合反應(yīng) B.紅外光譜法 C.氧化反應(yīng) D.碘仿反應(yīng)
A.15mg/片 B.30mg/片 C.100mg/片 D.A和B
A.99.9% B.94.4% C.98% D.97.76%