问题 选择题

如果2x2y3与x2yn+1是同类项,那么n的值是[ ]

A.1

B.2

C.3

D.4

答案

答案:B

选择题
[ ]

A.Sounds really cool!

B.Cheers!

C.How interesting you are!

D.I’ll go there,too.

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