单项选择题
A.1B.0.01C.0.1D.0.02
A.KF·2H2OB.K2F·2H2OC.K2F2·2H2OD.KF·3H2O
A.Zn(CH2COO)3·2H2OB.Zn(CH2COO)2·2H2OC.ZnCH2COO·2H2OD.Zn(CH2COO)2·3H2O