下列各式:
,
,
,
,
,
其中分式共有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdf7546ba4648f337be0ea054841fe4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160be66cda5581ce7eadd6510eccfdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b36b71f77116323cfebf51ffaa7b58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3040f2e893942c2b683a5e37089995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3e2482eb564e370a70f21a3bdd7b83b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eea03b7475ec3f5e74f6aa1be33d61d.png)
A.2 个 | B.3 个 | C.4 个 | D.5 个 |
更新时间:2019-11-11 11:07:40
|
A.2 个 | B.3 个 | C.4 个 | D.5 个 |