电动曲臂式高空作业车在高空作业时只需一个人就可操作机器连续完成升降、前进、后退、转向等动作,极大地减少了操作人员的数量和劳动强度.如图所示是一辆正在工作的电动曲臂式高空作业车,其中
,
.若
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d40e403b138555d6a6fe99b26ee7eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c9fcced94673229a97ef67fcec7dc4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3b0b11a80e8b107e55534d7fda9f2b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
2024·山西临汾·一模 查看更多[4]
2024年山西省临汾市大宁县中考一模数学试题(已下线)数学(山西卷)-学易金卷:2024年中考考前押题密卷辽宁省抚顺市新宾满族自治县2023-2024学年七年级下学期期中数学试题山东省青岛市城阳区2023-2024学年七年级下学期期中数学试题
更新时间:2024-03-31 15:28:14
|
相似题推荐
单选题
|
较易
(0.85)
【推荐1】如图,已知直线
,直线c被直线a、b所截,若
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/14/725a89c6-6645-4c00-8260-398622964904.png?resizew=164)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a4352562ae8aa968014fd0d931b677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ee4e0de0c1de0835766b7f627f348c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc310194575262fb45352c2fbc19868.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/14/725a89c6-6645-4c00-8260-398622964904.png?resizew=164)
A.60° | B.30° | C.110° | D.120° |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】如图,已知直线AB与CD相交于点O,OE平分∠AOD,∠EOF=90°.对于下列结论:①∠BOC=2∠AOE;②OF平分∠BOD;③∠AOE是∠BOF的余角;④∠AOE是∠COE的补角.其中正确结论的个数是( )
![](https://img.xkw.com/dksih/QBM/2022/2/8/2911889747206144/2922640900554752/STEM/40d7f18c-9724-4c5a-b345-e2168dccf137.png?resizew=167)
![](https://img.xkw.com/dksih/QBM/2022/2/8/2911889747206144/2922640900554752/STEM/40d7f18c-9724-4c5a-b345-e2168dccf137.png?resizew=167)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐1】一个等腰直角三角板和一把直尺按如图所示方式放置.若∠2=60°,则∠1的度数为( )
![](https://img.xkw.com/dksih/QBM/2022/3/7/2931332919115776/2938910366408704/STEM/23c81644-8562-408b-b39c-f5f0cdaea797.png?resizew=182)
![](https://img.xkw.com/dksih/QBM/2022/3/7/2931332919115776/2938910366408704/STEM/23c81644-8562-408b-b39c-f5f0cdaea797.png?resizew=182)
A.60° | B.75° | C.45° | D.105° |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】下列命题中,是真命题的是( )
A.![]() | B.a是实数,点![]() |
C.相等的角是对顶角 | D.两条直线被第三条直线所截,同位角相等 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐1】下列命题的逆命题是假命题的是( )
A.两直线平行,内错角相等 | B.有两个角互余的三角形是直角三角形 |
C.如果![]() ![]() | D.直角都是![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】已知直线
,将一块直角三角板
(其中
是
,
是
)按如图所示方式放置,若
,则
等于( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/30/c64e97d4-2ee9-4d33-9378-3d95282d0189.png?resizew=171)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/027830fc47290062692964077ee481e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58f859af1ce9e4da521c407411ad0e26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/30/c64e97d4-2ee9-4d33-9378-3d95282d0189.png?resizew=171)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次