题型:单选题
难度:0.85
引用次数:884
题号:10307956
已知集合
,集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73dc24b1f4fc4716ed5149d16ec833f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a8e8151bb259cdfe81fc22ac3d97f5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
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更新时间:2020-05-13 22:46:31
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解题方法
【推荐1】设集合![](https://img.xkw.com/dksih/QBM/2016/4/15/1572594751774720/1572594758500352/STEM/2053309072fd4563acc23a921f969891.png)
![](https://img.xkw.com/dksih/QBM/2016/4/15/1572594751774720/1572594758500352/STEM/2053309072fd4563acc23a921f969891.png)
A.![]() | B.![]() |
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您最近一年使用:0次
单选题
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较易
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名校
解题方法
【推荐2】设集合
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6b23a4174c00d23052ad5a9215988c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】已知集合
,
,则
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd2e79fb3a07e59ae941d9f3835a0ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ec6938909b52050232a87819c5330b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
解题方法
【推荐1】在R上定义运算
,若关于x的不等式
的解集是集合
的子集,则实数a的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df318ced3439cea07b8a3b8468819c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a815e52a1ac67a6c6c302d68010a3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e7a12441fffdad4f0c086c563aeeac.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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较易
(0.85)
解题方法
【推荐2】若集合
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f57c0b793eaf8b3ce6074e07125e3ec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次