名校
1 . 已知正方体
的棱长为1,下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.![]() ![]() |
B.四面体![]() ![]() |
C.与正方体![]() ![]() |
D.![]() ![]() ![]() |
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解题方法
2 . 如图,正方体
的棱长为1,则下列四个命题中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.两条异面直线![]() ![]() ![]() |
B.直线![]() ![]() ![]() |
C.点![]() ![]() ![]() |
D.四面体![]() ![]() |
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2024-03-25更新
|
1140次组卷
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3 . 如图,在棱长为2的正方体
中,
是棱BC的中点,
是棱
上的动点(含端点),则下列说法中正确的是( )
![](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/22adbc0da438220f9cace11b629d799b.png)
A.三棱锥![]() |
B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若CN与平面![]() ![]() ![]() |
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2024-03-12更新
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解题方法
4 . 如图所示,棱长为3的正方体
中,
为线段
上的动点(不含端点),则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
A.![]() | B.![]() ![]() ![]() |
C.![]() | D.当![]() ![]() ![]() |
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2024-03-10更新
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5 . 如图,棱长为2的正方体
中,
,
分别为
,
的中点,则( )
![](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/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/db7c7654-e150-4540-a927-6007e8cd002d.png?resizew=160)
A.![]() | B.![]() ![]() ![]() |
C.![]() ![]() ![]() ![]() | D.![]() ![]() |
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2024-02-12更新
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6 . 如图,四边形
,
都是边长为2的正方形,平面
平面
,
,
分别是线段
,
的中点,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/f465d385-2666-46e5-921a-33f5e20af6f9.png?resizew=150)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf9a6db3571fa57bfa2d5e4d44c51b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/f465d385-2666-46e5-921a-33f5e20af6f9.png?resizew=150)
A.![]() | B.异面直线![]() ![]() ![]() |
C.点![]() ![]() ![]() | D.![]() ![]() |
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解题方法
7 . 如图,在正方体
中,
,点
分别在棱
和
上运动(不含端点),若
,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/24/64bd3213-91b5-4c61-b912-c994abedba75.png?resizew=175)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3919ec9499b0ee102c84de7af74302da.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/24/64bd3213-91b5-4c61-b912-c994abedba75.png?resizew=175)
A.直线![]() ![]() ![]() | B.![]() ![]() |
C.![]() | D.线段![]() ![]() |
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解题方法
8 . 在棱长为1的正方体
中,点
为线段
的中点,点
为线段
的中点,点
分别为线段
与线段
上一点,则( )
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
A.直线![]() ![]() ![]() |
B.点![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.![]() ![]() |
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2023-11-20更新
|
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名校
解题方法
9 . 如图,在棱长为2的正方体
中,E,F分别为
,AB的中点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/20/cb3d9d3f-6bc5-4f8b-b6c1-f84101e1dea5.png?resizew=169)
A.点B到直线![]() ![]() |
B.直线CF到平面![]() ![]() |
C.直线![]() ![]() ![]() |
D.直线![]() ![]() ![]() |
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2023-06-16更新
|
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