解题方法
1 . 已知
为正方体
底面
的中心,
为棱
上动点,
,
为
的中点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028488a09ad3b412fc4fcd1128d593cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b46ed384a311245098a438820ab8717d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
A.平面![]() ![]() |
B.过![]() |
C.![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
2022-05-26更新
|
646次组卷
|
3卷引用:贵州省铜仁市江口中学2022-2023学年高二上学期9月月考数学试题
解题方法
2 . 在正方体
中,
、
分别是棱
、
中点,则下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/24/2745a82c-aa86-4f5a-9ebd-20be30864a1c.png?resizew=154)
A.![]() |
B.![]() ![]() |
C.![]() |
D.![]() ![]() ![]() |
您最近一年使用:0次