1 . 下列各式中,正确的有( )
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-11-04更新
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408次组卷
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3卷引用:辽宁省葫芦岛市协作校2021-2022学年高一上学期第一次考试数学试题
2 . 在①1
{0,1,2};②{1}
{0,1,2};③{0,1,2}
{0,1,2};④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
{0}上述四个关系中,错误的是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b980d8446f130dfc405c196109e73ea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b980d8446f130dfc405c196109e73ea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b980d8446f130dfc405c196109e73ea4.png)
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3 . 已知集合
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83b2b28e27c1e983bf92d25d6a5ce32e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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