摘要：5．H2CO3.C2H5OH..CH3COOH的酸性由强到弱的顺序是: A．H2CO3..C2H5OH.CH3COOH B．CH3COOH .H2CO3..C2H5OH C．H2CO3.CH3COOH ..C2H5OH D．C2H5OH..CH3COOH.H2CO3

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