名校
解题方法
1 . 如图 , 已知正方体
的棱长为
,
为正方形底面
内的一动点,则下列结论正确的有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/27/687857eb-7005-4b35-842e-ffce75b7e883.png?resizew=180)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/27/687857eb-7005-4b35-842e-ffce75b7e883.png?resizew=180)
A.三棱锥![]() |
B.存在点![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若点![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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2022-08-25更新
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2230次组卷
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7卷引用:福建省宁德市民族中学2023届高三上学期期中考试数学试题