题目内容
如果
与
的和为单项式,则m与n的值为 ( ).
| A.m = 2,n = 3 | B.m = 3,n =" 4" |
| C.m = -3,n = 2 | D.m = 3,n = -2 |
B
解析
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如果
与
的和为单项式,则m与n的值为 ( ).
| A.m = 2,n =" 3" | B.m = 3,n =" 4" |
| C.m = -3,n =" 2" | D.m = 3,n = -2 |