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有下列盐:① FeCl3 ② CH3COONa ③ NaCl,其水溶液的pH由大到小排列正确的是
A.①>③>② B. ②>③>① C.③>②>① D.①>②>③
A.①>③>② B.②>③>① C.③>②>① D.①>②>③