已知：25℃ H₂C₂O₄K₁ = 5.4×10^-2，K₂ = 5.4×10^-5；H₂CO₃ K₁=4.5×10^-7，K₂= 4.7×10^-11；下列离子方程式一定不正确的是

A．H₂C₂O₄ +CO₃^2－= HCO₃^－+HC₂O₄^－

B．HC₂O₄^－+CO₃^2－= HCO₃^－+C₂O₄^2－

C．H₂C₂O₄ +HCO₃^－=HC₂O₄^－+H₂O+CO₂

D．H₂C₂O₄+CO₃^2－= C₂O₄^2－+H₂O+CO₂

The driver hurt the girl _____ badly _____ she had to see a doctor.[ ]

A. so, that

B. either, or

C. too, to

D. neither, nor