1 . 已知集合
对于
,
,定义A与B的差为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9d3cda07e85dcc0f0abdd4009033185.png)
A与B之间的距离为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e27c2552f93678beed8a2da09d9f82c.png)
(Ⅰ)证明:
,且
;
(Ⅱ)证明:
三个数中至少有一个是偶数
(Ⅲ) 设P
,P中有m(m≥2)个元素,记P中所有两元素间距离的平均值为
(P).
证明:
(P)≤
.
(考生务必将答案答在答题卡上,在试卷上作答无效)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d6a56fba87eb11270936ec057e58145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9247eb1841878ba0f36a717a7c6f4d4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cccbf2256857847034bdd6e0bedcdd4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9d3cda07e85dcc0f0abdd4009033185.png)
A与B之间的距离为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e27c2552f93678beed8a2da09d9f82c.png)
(Ⅰ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe6617cee7f47ed6bb6d0291a8e75473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70958c6e20ee298ce93e7eb4434a9206.png)
(Ⅱ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e6deac71f097fe2ae7121691ac67e4.png)
(Ⅲ) 设P
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d57f40f7df91c9fc7992670d8d4bec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92751d41a1ec61f309b6a3f6032b731e.png)
证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92751d41a1ec61f309b6a3f6032b731e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8402e5be50a188507a4feb16ed56ea4d.png)
(考生务必将答案答在答题卡上,在试卷上作答无效)
您最近一年使用:0次
2016-11-30更新
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556次组卷
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4卷引用:2010年高考试题北京(理科)卷数学试题
2010年高考试题北京(理科)卷数学试题北京市第一七一中学2021-2022学年高二上学期数学期中调研试题(已下线)专题16 数列新定义题的解法 微点1 数列新定义题的解法(一)(已下线)第五篇 向量与几何 专题19 抽象距离 微点2 抽象距离——曼哈顿距离(二)
2 . 已知集合
对于
,
,定义A与B的差为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9494aad384d2bbd9f570f12c6fc31ee.png)
A与B之间的距离为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b53822fe6093b43b46beae65d6abe3.png)
(Ⅰ)当n=5时,设
,求
,
;
(Ⅱ)证明:
,且
;
(Ⅲ) 证明:
三个数中至少有一个是偶数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c0062971d409798b8a716209536536f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3615fd277cc1be2d8d8468a1ab9e3e96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eddb6f1abafe3023e19e095346474f9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9494aad384d2bbd9f570f12c6fc31ee.png)
A与B之间的距离为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b53822fe6093b43b46beae65d6abe3.png)
(Ⅰ)当n=5时,设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4660939da3ac24195b0a7b3773e9fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e9e460c144f7a2141d2df0308b125f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4a2681390214200443ae07c01a4abe.png)
(Ⅱ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4010da33cf43870f86be1bf9bfd6d0e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8513f18376e4e456b939d0f1cdb6e602.png)
(Ⅲ) 证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f859a0d4fb5579ac99e061da9a8a6de1.png)
您最近一年使用:0次
2016-11-30更新
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459次组卷
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4卷引用:2010年普通高等学校招生全国统一考试数学(文)(北京卷)
2010·北京东城·二模
3 . 已知抛物线的焦点
在
轴上,抛物线上一点
到准线的距离是
,过点
的直线与抛物线交于
,
两点,过
,
两点分别作抛物线的切线,这两条切线的交点为
.
(1)求抛物线的标准方程;
(2)求
的值;
(3)求证:
是
和
的等比中项.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbb60b7db5b47598f7a203607d5b747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(1)求抛物线的标准方程;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca99bed745e425faaffdabdf75e5ef19.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63b383adaebca1cf6d0bdd21bfd27089.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a21946ec8607b8de8f0e3d830a360a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9e3a165dc218a5a3a90671876dd7fb.png)
您最近一年使用:0次
2010·北京东城·二模
解题方法
4 . 已知数列
的前
项和为
,
,
,设
.
(Ⅰ)证明数列
是等比数列;
(Ⅱ)数列
满足
,设
,若对一切
不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f3dd930d591a7debf35234d2763c67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac8e1d60f036093acd1e8fb476226b0.png)
(Ⅰ)证明数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(Ⅱ)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed6186032ed76857b0a530048b0e9d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165e448460f1941cff392c4ddc576879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9241361992334a6fe15eaa803f6c1656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2010·北京海淀·二模
名校
5 . 给定集合
,映射
满足:
①当
时,
;
②任取
若
,则有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
.
.则称映射
:
是一个“优映射”.例如:用表1表示的映射
:
是一个“优映射”.
表1 表2
(1)已知表2表示的映射
:
是一个优映射,请把表2补充完整(只需填出一个满足条件的映射);
(2)若映射
:
是“优映射”,且方程
的解恰有6个,则这样的“优映射”的个数是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe05c3181726d202d021050807378989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92185b667af21e649c9b071042d29af0.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7873a6c263a103ce7a7b1410222bd245.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e2c865ebac120a4d1e17838ac9dc0ed.png)
②任取
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea0eb2f420c6146a0809f01cb3168f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ac49ab7c8001c209b8611b9ea40d85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f1cd15d46d4fc519ea93da0a7a82a01.png)
.则称映射
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22c3373a475f821448143d482d7c0a35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fea9eeefda7a3bfe23534700357fbacc.png)
表1 表2
![]() | 1 | 2 | 3 | |
![]() | 2 | 3 | 1 | |
![]() | 1 | 2 | 3 | 4 |
![]() | 3 |
(1)已知表2表示的映射
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe7704aeb096266ab863326b66111d4.png)
(2)若映射
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf5648713989066021d4f7cd433727b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987c640c84d230463ead6415c4c06a72.png)
您最近一年使用:0次
2010·北京西城·一模
名校
6 . 对于各项均为整数的数列
,如果
(
=1,2,3,…)为完全平方数,则称数
列
具有“
性质”.
不论数列
是否具有“
性质”,如果存在与
不是同一数列的
,且
同
时满足下面两个条件:①
是
的一个排列;②数列
具有“
性质”,则称数列
具有“变换
性质”.
(I)设数列
的前
项和
,证明数列
具有“
性质”;
(II)试判断数列1,2,3,4,5和数列1,2,3,…,11是否具有“变换
性质”,具有此性质的数列请写出相应的数列
,不具此性质的说明理由;
(III)对于有限项数列
:1,2,3,…,
,某人已经验证当
时,
数列
具有“变换
性质”,试证明:当”
时,数列
也具有“变换
性质”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212130b2fd909a15df54fd2878d2a779.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
不论数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
时满足下面两个条件:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a3e32e760a102a2dc471183d9be2df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1360106f4c2df673abb3b7b6ba05bf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(I)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd42cbda6a36d6d4aee3b119015e0b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(II)试判断数列1,2,3,4,5和数列1,2,3,…,11是否具有“变换
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
(III)对于有限项数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efcfe5f424dbb04897665f7e0acec1a1.png)
数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a66a72cdc17d593f2e8042243116c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2016-11-30更新
|
1440次组卷
|
6卷引用:北京市西城区2010年高三一模数学(理)试题
(已下线)北京市西城区2010年高三一模数学(理)试题北京市房山区2017-2018高三第一学期期末(理)试题北京市第二中学2018-2019学年高二上学期期末考试数学试题北京市第八中学2023届高三上学期9月开学诊断练习数学试题北京市海淀区首都师范大学附属中学2023-2024学年高三下学期开学练习数学试题(已下线)上海市华东师范大学第二附属中学2022届高三6月模拟数学试题
7 . 已知数集
具有性质
;对任意的
,
与
两数中至少有一个属于
.
(Ⅰ)分别判断数集
与
是否具有性质
,并说明理由;
(Ⅱ)证明:
,且
;
(Ⅲ)证明:当
时,
成等比数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d228c2d9c8929a1e02da010ba2f82552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669bb38ce88af69eb805246c960166e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f52783e7a39f438adf08ef7d05d8c78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf9fc9e8c9940547678ff7934363f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(Ⅰ)分别判断数集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c0547b8e498e87af46afcc1b983b7f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b7e018b11b0e2b938ac8c12cee68ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(Ⅱ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e1582eea740e7451295b3f23ac76c93.png)
(Ⅲ)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45cf86650443d1b86c79b1e3edc7e5c.png)
![](https://img.xkw.com/dksih/QBM/2010/3/5/1569627575492608/1569627633090560/STEM/e394d64b64284a55a5b41e1000802016.png)
您最近一年使用:0次
2016-11-30更新
|
421次组卷
|
6卷引用:2009年普通高等学校招生全国统一考试理科数学(北京卷)
8 . 已知集合
,其中
,由
中的元素构成两个相应的集合:
,
.
其中
是有序数对,集合
和
中的元素个数分别为
和
.
若对于任意的
,总有
,则称集合
具有性质
.
(Ⅰ)检验集合
与
是否具有性质
并对其中具有性质
的集合,写出相应的集合
和
.
(Ⅱ)对任何具有性质
的集合
,证明
.
(Ⅲ)判断
和
的大小关系,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8213c48030bc2cfa88da0f2a28aca2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d807832357bea22a266e63cbd7e678a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/976ed3659749e70adb41abe4030b6ef2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604a1abd24826ba48fe69d714b1b16d0.png)
其中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
若对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc020b0997a2f37b214718112b79d8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a2cacc52ffe015e828a4a5f2fe5ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(Ⅰ)检验集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e565001c699e5e221ed616dd7be2bb83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0110544a65399ad66980adc3667b8b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(Ⅱ)对任何具有性质
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca7597aeef0ed7313f6f78b9658ea5e.png)
(Ⅲ)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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2016-11-30更新
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11卷引用:2007年普通高等学校招生全国统一考试理科数学卷(北京)
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