1 . 设关于
,
的不等式组
表示的平面区域为
,若
,
,
中有且仅有两个点在平面区域
内,则实数
的取值范围是( )
![](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/5606fda4d1caf825ca444ae270be6a45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6ce39c72b38fa1a2b3275188b27689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be4715dd5f2139c84d0302095d226302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df49179dbfbc8e207aa92fd72060fba1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 若直线
与不等式组
,表示的平面区域有公共点,则实数
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22a900e67c15232c8240782070d5ce6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8d08aeeeb46429b1ccdcdd6888f9c36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
名校
3 . 已知点
在直线
的两侧,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef73b4c8e5bfb3a42c2e107aece50c75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39c80afd9471dcdae20ce1fd3ababa01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次