13-14高二上·福建·期末
名校
1 . 如图,已知正方形
的边长为
,
分别是
的中点,
⊥平面
,且
,则点
到平面
的距离为
![](https://img.xkw.com/dksih/QBM/2013/2/21/1571111848992768/1571111854448640/STEM/561db7ab-9683-4607-aa46-022c87d2e8fb.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82d579a717399137b8c6d475d33cd4f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50398f83e870dbbdcb4af18acae12a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://img.xkw.com/dksih/QBM/2013/2/21/1571111848992768/1571111854448640/STEM/561db7ab-9683-4607-aa46-022c87d2e8fb.png)
A.![]() | B.![]() | C.![]() | D.1 |
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4卷引用:云南省梁河县第一中学2021-2022学年高二上学期第一次月考数学试题
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