下列运算中，正确的是_刷题宝

题干

下列运算中，正确的是（）

A：x³+x³=x⁶

B：x³•x⁹=x²⁷

C：（x²）³=x⁵

D：x÷x²=x^﹣¹

上一题下一题 0.0难度选择题更新时间:2014-03-05 06:16:35

答案(点此获取答案解析）

D

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