下列计算正确的是( )
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-02-08 12:43:54
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【推荐2】下列各式:①
;②
;③
;④
.其中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05a83a1f3dcdc145252723f996ee7cf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb287825b09454fc253ca72e3b06772.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49a97d66e56accb66a786d273ea28bc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d19412d077f9af454627ed48ce1ce8.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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