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【单选题】
用纯水将下列溶液稀释10倍,其中pH值变化最大的是A.
0.1 mol/L HCl
B.
0.1 mol/L HAc
C.
1 mol/L NH 3 ·H 2 O
D.
1 mol/L HAc + 1 mol/L NaAc
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