1 . 以等边三角形的每个顶点为圆心,以其边长为半径,在另两个顶点间作一段圆弧,三段圆弧围成的曲边三角形被称为勒洛三角形.如图,在极坐标系
中,曲边三角形
为勒洛三角形,且
.以极点O为直角坐标原点,极轴
为x轴正半轴建立平面直角坐标系
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/bf488cd2-35db-497a-870a-dd800c79cf0b.png?resizew=167)
(1)求
的极坐标方程;
(2)若曲线C的参数方程为
(t为参数),求曲线C与
交点的极坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd6c71a0da6a878a5b12bf8a8e784645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3015dd7ed92690f30c98a1c14b369725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/bf488cd2-35db-497a-870a-dd800c79cf0b.png?resizew=167)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320c0f9263761963de27e41442a62a42.png)
(2)若曲线C的参数方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/096e6af1112a02ff47b3ce7df59b644b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320c0f9263761963de27e41442a62a42.png)
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2022-11-24更新
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1335次组卷
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9卷引用:江西省五市九校协作体2023届高三上学期第一次联考数学(理)试题
江西省五市九校协作体2023届高三上学期第一次联考数学(理)试题江西省五市九校协作体2023届高三上学期第一次联考数学(文)试题(已下线)江西省五市九校协作体2023届高三第一次联考文科数学试题变式题21-23(已下线)安徽省江南十校2022届高三下学期3月一模理科数学试题变式题21-23(已下线)专题21坐标系与参数方程四川省泸州市2022-2023学年高三上学期第一次教学质量诊断性考试数学(理)试题四川省泸州市2022-2023学年高三上学期第一次教学质量诊断性考试数学(文)试题四川省遂宁市第二中学校2022-2023学年高三上学期第五次模拟考试数学理科试题四川省遂宁市第二中学校2022-2023学年高三上学期第五次模拟考试数学文科试题
名校
2 . 在直角坐标系
中,圆
,以坐标原点为极点,
轴正半轴为极轴建立极坐标系.
(1)求
的极坐标方程;
(2)若直线
的极坐标方程为
,设
,
的交点为
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45512ccf3b6a275521cc8697cd7cb364.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d02dc5dafb7fc0c3726052c5f399cb65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae6f48b9a53c0155a692509cf31f7e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e8304947c8544f7aaca09fcdceec696.png)
您最近一年使用:0次
2022-11-20更新
|
1082次组卷
|
5卷引用:江西省南昌市三校(一中、十中、铁一中)2023届高三上学期第二次联考数学(理)试题
3 . 在平面直角坐标系
中,直线
的参数方程为
(t为参数),以坐标原点为极点,x轴为极轴建立极坐标系,曲线
的极坐标方程为:
.
(1)求
的普通方程和
直角坐标方程;
(2)若
,
交于A、B两点,点P的极坐标为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e0691718350e71d3daa471f63256a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9514468ce4ea82166ffd713a4b0743c0.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e3d34d5fa333ba38919871ddcc336e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7384b9afcef2d86a87eee0c66f383052.png)
您最近一年使用:0次
4 . 在平面直角坐标系
中,直线
的参数方程为
(
为参数),以坐标原点为极点,
轴为极轴建立极坐标系,曲线
的极坐标方程为:
.
(1)求
的普通方程和
直角坐标方程;
(2)若
,
交于
、
两点,点
的极坐标为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304b18c7b9ebce0af00706428eb15e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075115a5bc60e9eae149cfae175994fc.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/350ad277cd9d6bf3a8d89b4302405046.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7384b9afcef2d86a87eee0c66f383052.png)
您最近一年使用:0次
5 . 已知曲线
的参数方程为
(
为参数),以
为极点,
轴的非负半轴为极轴建立极坐标系,曲线
的极坐标方程为
.
(1)求曲线
的普通方程,曲线
的直角坐标方程;
(2)设曲线
的交点为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d6bfcdf9f517426741131bd167383e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27bd6de5b955ece11530dd4997b12b74.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)设曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9feabc99f62ee569b460e61526e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaff41080fdea43eea7efedf9ebc1498.png)
您最近一年使用:0次
2022-09-11更新
|
777次组卷
|
3卷引用:江西省南昌市2023届高三上学期摸底测试(零模)数学(理)试题
名校
6 . 以直角坐标系的原点O为极点,以x轴正半轴为极轴,且两个坐标系取相等的长度单位,已知直线l的参数方程为
(t为参数,
),曲线C的极坐标方程为
.
(1)求曲线C的直角坐标方程;
(2)设直线l与曲线C相交于A,B两点,当
变化时,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c303c71d57ac11fde4b58587f139856.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d6e447a5555fc437e22f054fc4e51e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459b8ded5edd02420d002252c3313396.png)
(1)求曲线C的直角坐标方程;
(2)设直线l与曲线C相交于A,B两点,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
您最近一年使用:0次
2022-03-11更新
|
644次组卷
|
3卷引用:江西省五市九校协作体2023届高三第二次联考数学(理)试题
7 . 在直角坐标系中,曲线
的参数方程为
(
为参数),以坐标原点为极点,
轴正半轴为极轴建立极坐标系,直线
的极坐标方程为
.
(1)分别求曲线
的普通方程和直线
的直角坐标方程;
(2)定点
,直线
与曲线
交于
两点,弦
的中点为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cc6f0d94317887fe1ca36df5a273169.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eb4d8cadef02b57f23692634df3deb6.png)
(1)分别求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b916a7bbb9b3de21ed514733db8ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/221b97034eb4aa5acc6eafb58bfa3f53.png)
您最近一年使用:0次
2022-01-24更新
|
1140次组卷
|
3卷引用:江西省赣州市赣县第三中学2023届高三上学期期中适应性数学(理)试题
名校
8 . 在平面直角坐标系
中,曲线
的参数方程为
(
为参数),曲线
的参数方程为
(
为参数),以坐标原点
为极点,x轴的正半轴为极轴建立极坐标系.
(1)求曲线
的极坐标方程;
(2)已知射线
分别交曲线
,
于
两点,若
是线段
的中点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b100d991e56af9f58cf75a8efe20985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/464cb49a6cb42a2a6d9ea8aaad7a8ec1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9feabc99f62ee569b460e61526e2e.png)
(2)已知射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c38f0114a3e4d691c3ad74a28c75fb2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
2021-05-10更新
|
1538次组卷
|
21卷引用:江西省南昌市东湖区南昌市八一中学2023届高三上学期2月月考文科数学试题
江西省南昌市东湖区南昌市八一中学2023届高三上学期2月月考文科数学试题江西省南昌市八一中学2020-2021学年度高二5月份考试数学(理)试题文科数学-学科网2021年高三5月大联考(新课标Ⅱ卷)文科数学-学科网2021年高三5月大联考(新课标Ⅲ卷)理科数学-学科网2021年高三5月大联考(新课标Ⅲ卷)理科数学-学科网2021年高三5月大联考(新课标Ⅱ卷)(已下线)坐标系与参数方程【专项训练】-2020-2021学年高二数学(文)下学期期末专项复习(人教A版选修4-4)宁夏石嘴山市第三中学2021届高三四模数学(理)试题宁夏石嘴山市第三中学2021届高三四模数学(文)试题广西玉林市育才中学2021届高三5月三模数学(文)试题吉林省长春市实验中学2020-2021学年高二下学期期末考试数学(文)试题广西玉林市育才中学2021届高三5月三模数学(理)试题云南省元谋县第一中学2021届高三5月联考数学(理)试题(已下线)专题11 坐标系与参数方程-2021年高考真题和模拟题数学(文)分项汇编(全国通用)甘肃省张掖市第二中学2021-2022学年高三上学期10月月考数学理科试题河南省豫西名校2021-2022学年高二下学期3月联考理科数学试题新疆乌鲁木齐市第八中学2021-2022学年高二下学期期中考试数学(文)试题甘肃省武威市武威六中2020-2021学年高三第十次诊断考试数学(文)试题甘肃省武威市武威六中2020-2021学年高三第十次诊断考试数学(理)试题四川省内江市第一中学2022-2023学年高三上学期10月月考理科数学试题宁夏石嘴山市第三中学2021届高三下学期第四次模拟考试数学(文)试题
9 . 在直角坐标系
中,曲线
的参数方程为
(
为参数),曲线
:
.以原点
为极点,
的非负半轴为极轴建立极坐标系.
(1)求曲线
的普通方程和曲线
的极坐标方程;
(2)曲线
与
交于
,
,
,
四点,求以
,
,
,
为顶点的四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ef09d524897bd8ea496d82bd24820e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4464f796d3ae217ed817673838b8b62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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/8455657dde27aabe6adb7b188e031c11.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
2021-04-29更新
|
536次组卷
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3卷引用:江西省丰城中学、上高二中2023届高三下学期2月联考数学(文)试题
名校
解题方法
10 . 在平面直角坐标系中,曲线
的参数方程为
为参数),以坐标原点O为极点,
轴非负半轴为极轴建立极坐标系,曲线
的极坐标方程为
-2
cos
=3.
(1)求曲线
的极坐标方程和曲线
的直角坐标方程;
(2)曲线
与
相交于
两点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffb56de999b0a7b2237119b3a7cfa78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec2882485409b684bef27f5298bd70d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/171102a883b22fe6ca578efc8926f5b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff24c95fe581befd56c3bcc70e88b726.png)
您最近一年使用:0次
2021-03-20更新
|
1531次组卷
|
9卷引用:江西省上饶市六校2023届高三第一次联考数学(理)试题
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