1 . 正方体
的棱长为
分别为
的中点,则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/36e3854f-6bdf-44c7-8986-ea9d8d06ef52.png?resizew=235)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ad72c3de2843d47ccdf39b154bdceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9acd207d0048beb84e122d6e54e022f6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/36e3854f-6bdf-44c7-8986-ea9d8d06ef52.png?resizew=235)
A.直线![]() ![]() |
B.直线![]() ![]() |
C.平面![]() |
D.点![]() ![]() ![]() ![]() ![]() |
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2022-06-21更新
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2卷引用:福建省诏安县桥东中学2021-2022学年高二下学期期末考试数学试题