名校
解题方法
1 . 如图为一正方体的平面展开图,在这个正方体中,有下列四个命题:
①
; ②
与
成
角;
③
与
成异面直线且夹角为
.
其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/fe4dba72-e163-40ee-b630-aadff16052d9.png?resizew=181)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c13866a079bd621d497ebaf81404cc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/fe4dba72-e163-40ee-b630-aadff16052d9.png?resizew=181)
A.①② | B.②③ | C.③ | D.①②③ |
您最近一年使用:0次
2022-10-14更新
|
308次组卷
|
3卷引用:四川省内江市第六中学2022-2023学年高二上学期期中考试数学(文科)试题
名校
解题方法
2 . 如图所示,正方体
中,点
,
(不包含线段端点),且
.①
;②
;③
面
;④
与
一定是异面直线.则以上四个结论中正确结论的序号是
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/8dac0eb5-c7fa-42cc-843b-a40be36f00e5.png?resizew=175)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78e62e6ac5defe81005f1dcfbb4f5fe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aab382735b9f4f37e3fca10a21772f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29819c98ebd087116d5e579f4f088fe8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c2ccb5a8a2b3bed5cb127b6ffc6dc57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b46a46b39d77fa23a3aa9664de05225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/8dac0eb5-c7fa-42cc-843b-a40be36f00e5.png?resizew=175)
A.①②③ | B.②③④ | C.①④ | D.①③ |
您最近一年使用:0次
3 . 如图是一几何体的平面展开图,其中
为正方形,
,
分别为
,
的中点,在此几何体中,给出下面四个结论:①直线
与直线
异面;②直线
与直线
异面;③直线
平面
;④平面
平面
.
其中一定正确的选项是
![](https://img.xkw.com/dksih/QBM/2018/1/2/1851643074822144/1852494955667456/STEM/dd02474aad9c4972b7470ea7781913a4.png?resizew=137)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39282bdf319f30d7bc261e2e3ab3b1e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
其中一定正确的选项是
![](https://img.xkw.com/dksih/QBM/2018/1/2/1851643074822144/1852494955667456/STEM/dd02474aad9c4972b7470ea7781913a4.png?resizew=137)
A.①③ | B.②③ | C.②③④ | D.①③④ |
您最近一年使用:0次
2018-01-03更新
|
378次组卷
|
2卷引用:四川省石室中学2017-2018学年高二上学期半期考试数学(文)试题
9-10高二下·四川绵阳·期中
解题方法
4 . 在正方体
中,
分别是线段
的中点,以下结论:①
丄
;②
与
异面;③
丄面
;其中正确的是( )
![](https://img.xkw.com/dksih/QBM/2010/4/29/1569709163315200/1569709167878144/STEM/f2dba7c6dc964bafabe7865f2b5d3041.png?resizew=157)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414d12245deeef36206d85a42dd7a853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679d44b754580b0450b5b06784df5af9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bf9ef324f1289e205e29fed105c38e.png)
![](https://img.xkw.com/dksih/QBM/2010/4/29/1569709163315200/1569709167878144/STEM/f2dba7c6dc964bafabe7865f2b5d3041.png?resizew=157)
A.① | B.①② | C.①③ | D.②③ |
您最近一年使用:0次