• 2022-07-02
    按酸碱质子理论考虑,在水溶液中既可作酸亦可作碱的物质是
    A: [img=29x21]18033dbbc555133.png[/img]
    B: [img=42x26]18033dbbce8c563.png[/img]
    C: [img=53x26]18033dbbd6fcf40.png[/img]
    D: [img=46x24]18033dbbe000f8f.png[/img]