已知关于
,
的方程组
给出下列结论:①
是该方程组的一组解;②当
时,
,
的值互为相反数;③当
时,方程组的解也是方程
的解;④
,
间的数量关系是
.其中正确的结论有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0251af6332b4b4f33b3e2f5bb505ffe4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fec9174eef3370c9911903480506b2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9af6b8933cb0bcc983a15c903b5892e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302337058242c7b78e3eb4ac7210b7ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd2d791df91ee6e38ceb56408fcc0a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd0d6f38ee14408a25c1025f8ba692a3.png)
A.②③ | B.①②③ | C.①③ | D.①③④ |
21-22七年级下·全国·单元测试 查看更多[2]
更新时间:2023-05-15 16:28:08
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