已知关于
,
的不等式组:
有以下说法:①若它的解集是
,则
;②当
时,它无解;③若它的整数解只有2,3,4,则
;④若它有解,则
.其中所有正确说法的序号是( ).
![](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/c44725854e07a711f30a2cc0cc4409e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c31c1e80d9d0033050e83f93e19feb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26cd4f5610cc5a1135842fbc384ae48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655b06387179d53c1e474fcfcb408b1e.png)
A.①②③ | B.①②④ | C.④ | D.②④ |
更新时间:2021-07-28 10:30:40
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