在正四棱柱
中,
分别是
的中点,
是棱
上一点,则下列结论正确的有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/18/bfa724b9-5af6-4a17-97d9-6e110d68c6ad.png?resizew=168)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2da442b4344232f22b3accb782eec487.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e443eab1bfe20ca45ca55170c3901142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/18/bfa724b9-5af6-4a17-97d9-6e110d68c6ad.png?resizew=168)
A.若![]() ![]() ![]() | B.若![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() | D.![]() ![]() |
更新时间:2024-03-03 22:04:35
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【推荐1】在正方体ABCD﹣A1B1C1D1中,P是线段B1C上动点,F是BD1的中点,则( )
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C.直线BB1与平面BPD1所成角可以是∠D1BB1 |
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【推荐2】如图,棱长为2的正方体
中,
分别为棱
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为面对角线
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/b6da59af-e610-4634-a5a4-d8648fda95cb.png?resizew=174)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
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A.三棱锥![]() |
B.线段![]() ![]() ![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.三棱锥![]() ![]() |
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名校
解题方法
【推荐1】如图,在棱长为2的正方体
中,
分别是棱
的中点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/281073861d018355f34d0d8db4b8ae5b.png)
A.![]() |
B.![]() |
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D.点![]() ![]() |
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适中
(0.65)
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【推荐2】如图,在棱长为
的正方体中,下列结论成立的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/44bc1d76-95d7-40cc-bde9-5e48ea1cead8.png?resizew=173)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414656636a840bbb9a031d6103239fdd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/44bc1d76-95d7-40cc-bde9-5e48ea1cead8.png?resizew=173)
A.若点![]() ![]() ![]() ![]() ![]() |
B.二面角![]() ![]() |
C.直线![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次