常温下，把PH=11的NaOH溶液与PH=3的醋酸溶液等体积混合，所得溶液中离子浓度大小关系正确的是[ ]

A．[CH₃COO^-] > [Na⁺]>[H⁺]>[OH^-]

B．[Na⁺]+ [H⁺]>[CH₃COO^-]+ [OH^-]

C．[H⁺]=[CH₃COO^-]+ [OH^-]

D．[Na⁺]>[CH₃COO^-]>[OH^-]>[H⁺]