下列等式:①
;②
=2+
;③
=4
,其中正确的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da94d7535b387b4ba7c7d095a315a6cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5f885a0e5c2ebe62d7f212d8b2195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d712d34042bd87e697fc9f9474cb278c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2565a51313c163b927136eae8f485f86.png)
A.0 | B.1 | C.2 | D.3 |
20-21八年级下·河南新乡·期中 查看更多[2]
更新时间:2021-05-26 09:00:22
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从距原点8个单位的
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【推荐2】已知n是正整数,
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