已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77686a5f4959fb53b4cd01a0fe3de494.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2021-09-14 09:30:42
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【推荐1】已知集合
,若
,则
的子集有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fe05c855f285a501e2271dcac80ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43f3fc042263949cc8a18f61ecc7086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.3个 | B.4个 | C.7个 | D.8个 |
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