1 . 若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/692f0df58ba49655844e0bf4f0d240db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
A.12 | B.10 | C.8 | D.6 |
您最近一年使用:0次
2 . 若二次函数
的图象,过不同的六点
、
,则
的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5bc33939f6e895155dfca345718cfe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f060fd4f60a3d7536eef637450ed368c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95add76c5e7c2c2c93f9703a46cf7388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a75e265ce4dfedf42abeb6a94039b2.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
3 . 如图,四边形
内接于
,若
,则
的大小为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/9c9e8376-f434-4683-8779-ecf55167553a.png?resizew=132)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6848bc1256dba9d768d2be5f36b8d46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c543c3ddc3723fde6bbfca3ea3b921b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/9c9e8376-f434-4683-8779-ecf55167553a.png?resizew=132)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 如图是用三块正方形纸片以顶点相连的方式设计的“毕达哥拉斯”图案.现有五种正方形纸片,面积分别是1,2,3,4,5,选取其中三块(可重复选取)按图的方式组成图案,使所围成的三角形是面积最大的直角三角形,则选取的三块纸片的面积分别是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/a515a05f-77ef-44d5-b213-b6064c2ca662.png?resizew=130)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/a515a05f-77ef-44d5-b213-b6064c2ca662.png?resizew=130)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 如图,在
中,
,高
,正方形
一边在
上,点
分别在
上,
交
于点
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/e31a0230-7a17-48f5-abef-0c73c8bb25bb.png?resizew=178)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b697b4b6230d62b428fce3c27571ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c99154aec25bfa23baa5343bf0c21991.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/e31a0230-7a17-48f5-abef-0c73c8bb25bb.png?resizew=178)
A.15 | B.20 | C.25 | D.30 |
您最近一年使用:0次
6 . 如图,点
是直线
上的两点,过
两点分别作
轴的平行线交双曲线
于点
.若
,则
的值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/d4025aa8-396d-4e9a-bd43-6616381ab7e5.png?resizew=154)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edeed0665fc1a8e99ceb7911fe137390.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfdee6a5778b2bf12bc3e0ad791aa137.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebf58f210d5cb4654da3a526133a89c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/d4025aa8-396d-4e9a-bd43-6616381ab7e5.png?resizew=154)
A.5 | B.![]() | C.4 | D.![]() |
您最近一年使用:0次
7 . 《九章算术》是古代东方数学代表作,书中记载:今有开门去阃(读kǔn,门槛的意思)一尺,不合二寸,问门广几何?题目大意是:如图1、2(图2为图1的平面示意图),推开双门,双门间隙
的距离为2寸,点
和点
距离门槛
都为1尺(1尺
寸),则
的长是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/e5bd6d05-6ebd-4e2d-a615-6299143f2ef7.png?resizew=346)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a3c450315612a9fa3fc9562f290bc04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/e5bd6d05-6ebd-4e2d-a615-6299143f2ef7.png?resizew=346)
A.50.5寸 | B.52寸 | C.101寸 | D.104寸 |
您最近一年使用:0次
8 . 如图2是图1长方体的三视图,若用
表示面积,
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/c49be674-11e0-4ea5-a13e-c3f750139633.png?resizew=259)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/591ede8589b5a4161f0bb7a78c421eb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b23749bf308389ab21a1810ea99bec7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/c49be674-11e0-4ea5-a13e-c3f750139633.png?resizew=259)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 将一副三角尺按如图所示的方式摆放,则
的大小为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/426e0912-dce2-410c-9a8b-7ded1a27e0de.png?resizew=186)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780d8fd6c6c1deeeb45e15f639719e02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/426e0912-dce2-410c-9a8b-7ded1a27e0de.png?resizew=186)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
10 . 2020年初以来,红星消毒液公司生产的消毒液在库存量为
吨的情况下,日销售量与产量持平.自1月底抗击“新冠病毒”以来,消毒液需求量猛增,该厂在生产能力不变的情况下,消毒液一度脱销,下面表示2020年初至脱销期间,该厂库存量
(吨)与时间
(天)之间函数关系的大致图象是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次