1 . 如图,正四面体
的顶点
,
,
分别在两两垂直的三条射线
,
,
上,则下列说法中正确的为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/1768b638-ee14-411e-bae4-1e3562c8017a.png?resizew=143)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14069d21d32c724f0ebe3e311f114c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5615812990deef255366042987977c58.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/1768b638-ee14-411e-bae4-1e3562c8017a.png?resizew=143)
A.![]() | B.直线![]() ![]() |
C.直线![]() ![]() ![]() | D.二面角![]() ![]() |
您最近一年使用:0次
2022-10-14更新
|
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2卷引用:广东省韶关市武江区广东北江实验学校2022-2023学年高二下学期期中数学试题
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2 . 如图,已知正方体
的棱长为2,
,
,
分别为
,
,
的中点,以下说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/03a04d83-d177-4291-8533-4647fcc3f042.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/03a04d83-d177-4291-8533-4647fcc3f042.png?resizew=160)
A.三棱锥![]() |
B.![]() ![]() |
C.异面直线EF与AG所成的角的余弦值为![]() |
D.过点![]() ![]() ![]() ![]() |
您最近一年使用:0次
2021-11-13更新
|
1376次组卷
|
5卷引用:广东省韶关市曲江区曲江中学2021-2022学年高一下学期期末复习2数学试题