名校
解题方法
1 . 已知两个实数集
与
,若从
到
的映射
,使得集合
中的每个元素都有原象(如果A中元素a与B中元素b对应,a即为b的原象),且
,则这样的映射共有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f8073b3e181cdbb8849323c7cc9b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9420642d2f0b0cfcda432cd12d94d72d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8d7e85c404316c3cfe8b77b9e20e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32757bf68bcd261ca8fa406172c6c926.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2021-11-05更新
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339次组卷
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2卷引用:浙江省2022届高考模拟卷数学试题(三)