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1 . 随机地将1,2,3、4,5,6中这六个数分为A,B两组,每组三个数.A组中最小数为
,最大数为
;B组中最小数为
,最大数为
,记
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beee00df483d0ab183e129f3cc72a9b4.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-02-07更新
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194次组卷
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2卷引用:2019年清华大学自主招生暨领军计划数学试题