解题方法
1 . 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.![]() ![]() ![]() |
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名校
2 . 如图是一正方体的表面展开图,
和
是两条面对角线,则在正方体中,直线
与直线
的位置关系为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/5b08daee-946b-4f5f-aa75-b7460e75f98d.png?resizew=185)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/5b08daee-946b-4f5f-aa75-b7460e75f98d.png?resizew=185)
A.相交 | B.平行 | C.异面 | D.重合 |
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