A.1∶3 B.1∶2 C.3∶1 D.3∶2
A.11.85 B.6.78 C.9.08 D.13.74
A.HCl=H2SO4>CH3COOH B.HCl>H2SO4>CH3COOH C.H2SO4>HCl>CH3COOH D.HCl=H2SO4=CH3COOH