已知直线
与平面
,则
的充分条件可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ba63ad02b1d5af2982fac3d91eb15c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
更新时间:2023-08-02 23:22:16
|
【知识点】 判断面面是否垂直
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单选题
|
较易
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名校
解题方法
【推荐1】
垂直于正方形
所在平面,连接
,
,
,
,
,则下列垂直关系正确的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/077a17c3-f84b-4f8d-9d32-170ae5918104.png?resizew=148)
①面
面
②面
面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
③面
面
④面
面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/421dd17fb63206cb9c9bd43286224150.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/077a17c3-f84b-4f8d-9d32-170ae5918104.png?resizew=148)
①面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
③面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
A.1 | B.2 | C.3 | D.4 |
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较易
(0.85)
【推荐2】下列命题正确的是( )
A.平面α内的一条直线a垂直于平面β内的无数条直线,则α⊥β |
B.若平面α⊥β,则α内的直线垂直于平面β |
C.若平面α⊥β,且α∩β=l,则过α内一点P与l垂直的直线垂直于平面β |
D.若直线a与平面α内的无数条直线都垂直,则不能说一定有a⊥α |
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