1 . 嘌呤是一种杂环有机化合物,它在能量的供应、代谢的调节等方面都有十分重要的作用,它的化学结构式主要由一个正五边形与一个正六边形构成(设它们的边长均为1),其平面图形如图所示,则( )
A.![]() | B.O到AC的距离是![]() |
C.O是![]() | D.![]() |
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2024-03-14更新
|
893次组卷
|
5卷引用:广东省东莞市东莞中学松山湖学校2023-2024学年高一下学期第一次段考数学试题
广东省东莞市东莞中学松山湖学校2023-2024学年高一下学期第一次段考数学试题广东省燕博园2024届高三下学期3月综合能力测试(CAT联考)数学试题广东省佛山市南海西樵高级中学2024届高三下学期3月综合能力测试数学试题(已下线)情境4 重视学科交叉(已下线)解三角形-综合测试卷B卷
2 . 关于
的方程
的根有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa6f7425a92ac32f33d8ed7c4aba3b1c.png)
A.0 | B.1 | C.2 | D.3 |
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3 . 如图,正方形
的对角线相交于点
,点
又是正方形
的一个顶点,而且这两个正方形的边长相等.下列结论正确的有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/16/054e10da-36ce-424b-9df0-8a0c1089b351.png?resizew=156)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4635a4e561d862638f6818e85e74bfd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/16/054e10da-36ce-424b-9df0-8a0c1089b351.png?resizew=156)
A.![]() |
B.正方形![]() ![]() ![]() ![]() |
C.△BEF周长的最小值为![]() |
D.![]() |
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4 . 已知关于
的分式方程
有整数解,且关于
的不等式组
的解集为
,求满足条件的整数
的值可以为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b33f510d5ab5bea1b2b22233124aa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff5a8234382cde49a0f5b253155bd0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec336faee8689281a6f6b465e7fcff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.﹣4 | B.﹣2 | C.﹣1 | D.1 |
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名校
5 . 如图,正方形
的长为
为边
中点,射线
绕点
按逆时针方向从射线
旋转至射线
,在旋转的过程中,记
为
,射线
扫过的正方形
内部的区域(阴影部分)的面积为
,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/25/af061515-2c26-4975-86b1-3a3dc29bdcc8.png?resizew=161)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0342946a0f827001a879cad686d1cf68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3a3bf63440a2fdd769162516fb0e1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/25/af061515-2c26-4975-86b1-3a3dc29bdcc8.png?resizew=161)
A.![]() |
B.![]() ![]() |
C.![]() |
D.若![]() ![]() ![]() ![]() |
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6 . 已知
,下列各式中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c9e6b769a3e56a49ab97879dc14445c.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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7 . 在
中,内角
,
,
所对的边分别为
,
,
.若
,内角
的平分线交
于点
,
,
,以下结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/323b8b64ccdb829eaefa2180796012eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec21ee73ebbc19ad8162f9784256581.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-27更新
|
744次组卷
|
2卷引用:江苏省新海高级中学2022-2023学年高一下学期3月月考数学试卷
名校
8 . 如图,正方形ABCD边长为1,以AB为直径作半圆,点
是CD中点,BP与半圆交于点
,连接DQ.下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/23/23c4248b-c6ad-416e-a255-9dbc74b72132.png?resizew=138)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/23/23c4248b-c6ad-416e-a255-9dbc74b72132.png?resizew=138)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 如图,半径为2的
是正六边形
的外接圆,过点A作
的切线交
的延长线于点P,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/8/c94d902a-45f7-49db-b4c4-aeac4c5fe1c7.png?resizew=163)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 下列等式变形正确的是( )
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
您最近一年使用:0次