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【单选题】
下列叙述中，不正确的是（  ）
A.
原电池负极上发生的反应是氧化反应
B.
失电子能力弱的物质获得电子的能力一定强
C.
阳离子在氧化还原反应中，可能表现氧化性，也可能表现还原性
D.
氯气分子在反应中，作氧化剂的同时也可能是还原剂
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