已知集合
,则下列关系式中成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c0913f6868a17a63e4b4f277a943eb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2022-11-30 13:20:02
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容易
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名校
【推荐1】下列四个写法:①
;②
;③
;④
.其中正确写法的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fc4c37b6e0f5b971f73fe87064e457b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f583e3c1cfb1ea89a16a3e8f13bba3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca0018f7cff40f9e5135dad0041a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b541cfc6ad1a0fd84bda0280e08c079.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
单选题
|
容易
(0.94)
解题方法
【推荐1】已知集合
,
,那么( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc793a2d24063b45d916aa690311368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c64c70b8c51fea3b419c99c1ea2e7f7.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
您最近一年使用:0次