题干

下列各组单项式中,是同类项的为(   )

A:﹣x2y与x2y2

B:x2y2与2xy

C:﹣x2y与3x2y

D:xy2与x2y

上一题 下一题 0.0难度 选择题 更新时间:2014-06-07 09:45:37

答案(点此获取答案解析)

C

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