A.110.0% B.105.0% C.103.0% D.101.0% E.100.5%
A.酚酞 B.甲基橙 C.甲基紅 D.石蕊試紙 E.PH試紙
A.水分 B.乙醇 C.甲醇 D.揮發(fā)性物質(zhì) E.有機(jī)溶劑