— Which coat is _____ on me, the blue one or the red one?      

— Well, both are nice on me.  [ ]

A. good

B. better

C. best

D. the best

下列电离方程式中，书写正确的是（　　）

A．KNO₃→K⁺+3NO^-

B．H₂SO₄→2H⁺+SO₄^2-

C．NaCl→Na⁺+Cl^-1

D．Na₂CO₃→Na₂⁺+CO₃^2-