单项选择题

A.100mL1mol/LHAc+100mL1mol/LNaOH;
B.100mL1mol/LHCl+200ml2mol/LNH3〃H2O;
C.200mL1mol/LNH4Cl+100mL1mol/LNH3〃H2O;
D.100mL1mol/LNH4Cl+100mL1mol/LNH3〃H2O;
E.100ml5mol/LNaOH+1ml0.1mol/LHCl