四组数中:①1和1;②﹣1和1;③0和0;④﹣
和﹣1
,互为倒数的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d0e7bfbd56fe73dfe04c04da749d942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eff998d034284391ca064755fa6bf1b.png)
A.①② | B.①③ | C.①④ | D.①③④ |
更新时间:2018-12-13 20:41:59
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A.①② | B.①③ | C.①④ | D.①③④ |