如图,在正方体
中,P为线段
上的一个动点,下列结论中正确的是( )
![](https://img.xkw.com/dksih/QBM/2020/7/22/2511298325168128/2512997752168448/STEM/4bfcb73e-2b48-46df-a828-d10c3a582b56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://img.xkw.com/dksih/QBM/2020/7/22/2511298325168128/2512997752168448/STEM/4bfcb73e-2b48-46df-a828-d10c3a582b56.png)
A.![]() |
B.平面![]() ![]() |
C.存在唯一的点P,使得![]() |
D.当点P为![]() ![]() |
更新时间:2020-07-24 21:29:55
|
相似题推荐
多选题
|
较易
(0.85)
解题方法
【推荐1】如图,菱形ABCD边长为2,∠BAD=60°,E为边AB的中点,将△ADE沿DE折起,使A到
,连接
,
,且
,平面
与平面
的交线为l,则下列结论中正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/7/11/3020364841852928/3021134148001792/STEM/ad1691681e6c49a5874cb3012444e458.png?resizew=247)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e663220a66eff19da6a71e46b397db2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb97aff0960e2640314888a38e7169c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42212c86d4b95260e285a4cb605b1c87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b12cffc313a181f666e3fc8e66b6f59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1530d93834fbafba5f7217778ea90442.png)
![](https://img.xkw.com/dksih/QBM/2022/7/11/3020364841852928/3021134148001792/STEM/ad1691681e6c49a5874cb3012444e458.png?resizew=247)
A.平面![]() ![]() | B.![]() |
C.ВС与平面![]() ![]() | D.二面角![]() ![]() |
您最近一年使用:0次
多选题
|
较易
(0.85)
名校
解题方法
【推荐2】如图,
垂直于以
为直径的圆所在的平面,点
是圆周上异于
,
任一点,则下列结论中正确 的是
![](https://img.xkw.com/dksih/QBM/2020/6/28/2494645255454720/2495620206796800/STEM/c49dc3635c864b0a85d8ae7410eb7e40.png?resizew=136)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/2020/6/28/2494645255454720/2495620206796800/STEM/c49dc3635c864b0a85d8ae7410eb7e40.png?resizew=136)
A.![]() | B.![]() |
C.![]() ![]() | D.平面![]() ![]() |
您最近一年使用:0次
多选题
|
较易
(0.85)
【推荐1】如图,在正方体中,O为底面的中心,P为所在棱的中点,M,N为正方体的顶点.则满足
的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9279bcb7ade37b74c2f05cd30f40f99f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
多选题
|
较易
(0.85)
解题方法
【推荐2】平行六面体
中,各棱长均为2,设
,则( )
![](https://img.xkw.com/dksih/QBM/2021/5/11/2718640521093120/2720886151700480/STEM/1a6755b1-f439-4c5b-bfce-14164d3753b6.png?resizew=213)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3562306681ba2bfcbb8fb49af467d0f1.png)
![](https://img.xkw.com/dksih/QBM/2021/5/11/2718640521093120/2720886151700480/STEM/1a6755b1-f439-4c5b-bfce-14164d3753b6.png?resizew=213)
A.当![]() ![]() | B.![]() ![]() |
C.![]() | D.![]() ![]() ![]() |
您最近一年使用:0次