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第 17: 17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 ( )

多选题
2021-09-03 16:36
A、Cl-
B、NH4+
C、HCO3-
D、H3O+
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正确答案
C@#@C

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