![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d2b6bc804a5a781022e00cf06883bcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0a89e3c30f6e4d4c5db4378b05d987.png)
A.![]() | B.10 | C.40 | D.![]() |
21-22高三上·浙江金华·期末 查看更多[2]
更新时间:2022-01-26 14:34:23
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的展开式中
(即分子a的指数和分母b的指数相同)项的系数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19fa59d9f030d4487f27fce2bc1403a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8715363c87ce217ce733bc0910dec5f6.png)
A.![]() | B.15 | C.![]() | D.20 |
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