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【单选题】
强碱滴定一元弱酸时,只有在下列哪种情况下,才可以直接滴定( )A.
c=0.1mol/L
B.
Ka<10^-7< /div>
C.
cKa≥10^-8
D.
cKa<10^-8< /div>
E.
Ka<10^-10< /div>
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