名校
1 . 已知集合
,
,
,则集合
中元素的个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b8062f9a9e1cf7d81fee5e26c656c1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82c1575c7161623e3ac5d0c911ed89ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b129b7a4d9793472b33a21765d9b0cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.4 | B.8 |
C.16 | D.20 |
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2017-02-16更新
|
680次组卷
|
3卷引用:江西省上高二中2021届高三上学期第二次月考数学(理)试题
2 . 设集合
,
,从集合
中任取一个元素,则这个元素也是集合
中元素的概率是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522b4c7d1093ec92dce1a278194adac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddcebfb8da5388966205bda9caafa83a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2016-12-04更新
|
258次组卷
|
2卷引用:2016届湖南师大附中高三月考四文科数学试卷
3 . 已知集合
,
,则
的子集可以是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/581d689e96514caeda9e0bba37326078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fd05b8778b4285d4f4198694d09f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d259db9bb0e132881e875a77d324057.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 设集合A=
,B=
,则A
B子集的个数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/810c6e69e823d49a774d7e4154b4aab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c1d05756f57915c16a661adf301a8e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbc4670192a2d791f4c182485333dfb0.png)
A.1 | B.2 | C.3 | D.4 |
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9-10高二下·海南·期末
5 . 集合A={﹣1,5,1},A的子集中,含有元素5的子集共有
A.2个 | B.4个 | C.6个 | D.8个 |
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