单项选择题
A.Ka1/Ka2≥10-4 B.C·Ka≥10-6 C.LgK稳≥8
A.小于 B.大于 C.等于
A.0.6mol/l B.0.01667mol/l C.0.10mol/l
A.0.02mol/l B.0.004mol/l C.0.1mol/l
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