名校
1 . 已知底面ABCD为菱形的直四棱柱,被平面AEFG所截几何体如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/594b9562-51ce-470a-90d9-8686b0d06bec.png?resizew=232)
(1)若
,求证:
;
(2)若
,
,三棱锥GACD的体积为
,直线AF与底面ABCD所成角的正切值为
,求锐二面角
的余弦值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/594b9562-51ce-470a-90d9-8686b0d06bec.png?resizew=232)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4da6d55f36613f4c677d479358fce6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7a67d05f2f5e3e6fd43fb60e8c53d4f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa3f4f259d60ade01bd9bf6632238e39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b98d08cb05a894f940009f56c74d83c.png)
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4卷引用:广东省广外、广附、铁一三校2022-2023学年高二上学期期中联考数学试题
解题方法
2 . 如图,在正方体
中,
是
的中点,
,
,
分别是
,
,
的中点,求证:
![](https://img.xkw.com/dksih/QBM/2022/5/8/2974933547376640/2979080373813248/STEM/e0efe439-5142-4d5a-b7ac-d28a804ac5a0.png?resizew=200)
(1)直线
平面
;
(2)
为线段
上一点,且
,求证:
平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2bc5e50b8dfa02601c70822252854a.png)
![](https://img.xkw.com/dksih/QBM/2022/5/8/2974933547376640/2979080373813248/STEM/e0efe439-5142-4d5a-b7ac-d28a804ac5a0.png?resizew=200)
(1)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f31d54d125c042169e282f14eddd45a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bf9ef324f1289e205e29fed105c38e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7f9d6c4583b60e2ece705889264f0f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e82b3e225741b7f541fb6cff225d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
您最近一年使用:0次
2022-05-14更新
|
1496次组卷
|
6卷引用:广东省深圳实验学校2021-2022学年高一下学期期中数学试题
广东省深圳实验学校2021-2022学年高一下学期期中数学试题广东省惠州一中、珠海一中、中山纪念中学2021-2022学年高一下学期第二次段考数学试题(已下线)第11练 空间直线、平面的平行-2022年【暑假分层作业】高一数学(人教A版2019必修第二册)(已下线)空间直线、平面的平行(已下线)专题08 空间直线与平面的平行问题(1)-期中期末考点大串讲广东省2024年普通高中学业水平合格性考试考前冲刺数学试题二
名校
3 . 如图,矩形
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c707f0202ec1aa233e1eeacc7a4587d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e4201ad1d4e25974c60439c2a561c08.png)
,平面
与棱
交于点G.
;
(2)求直线
与平面
夹角的正弦值;
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5d5f5199a80748d7a3afa1ac0c99135.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c707f0202ec1aa233e1eeacc7a4587d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e4201ad1d4e25974c60439c2a561c08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ccb204e61b8daace3f89787e8fdd39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa3254460ecbacecb3e57c5dce227f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df55452b4b5fcdcb71f713b736f8b9e1.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa3254460ecbacecb3e57c5dce227f4.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a06f9624936200b73a5b0ce0b5bdfad.png)
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2022-10-26更新
|
705次组卷
|
2卷引用:北京市丰台区第十二中学2021-2022学年高二上学期期中数学试题
4 . 如图所示,在直三棱柱
中,
,
,点
分别为棱
,
的中点,点
是线段
上的点(不包括两个端点).
![](https://img.xkw.com/dksih/QBM/2022/5/1/2969888881025024/2970026896293888/STEM/689068d4a96b4032aae751b60c8a04f9.png?resizew=212)
(1)设平面
与平面ABC相交于直线m, 求证:
;
(2)当
为线段
的中点时,求点
到平面
的距离;
(3)是否存在一点
,使得二面角
的余弦值为
,如果存在,求出
的值;如果不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e96a6b20a35af7755e5d90789ea862da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/2022/5/1/2969888881025024/2970026896293888/STEM/689068d4a96b4032aae751b60c8a04f9.png?resizew=212)
(1)设平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a5462d242e01ea2c26c1f31aeccf27a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
(3)是否存在一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3793f8863ff929602e3e60ebae6127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74d0f451005f07f21f3380c707dc79d4.png)
您最近一年使用:0次
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5 . 如图,AP是圆柱的母线,正△ABC是该圆柱的下底面的内接三角形,D,E,F分别为BC,PB,AB的中点,G是EF的中点,且AP=AC.
![](https://img.xkw.com/dksih/QBM/2021/11/19/2854639979487232/2858441973432320/STEM/c4c74883-a062-4fd1-9673-0b9c6354a888.png)
(1)求证:DG
平面PAC;
(2)求直线DG与平面PBC所成角的正弦值.
![](https://img.xkw.com/dksih/QBM/2021/11/19/2854639979487232/2858441973432320/STEM/c4c74883-a062-4fd1-9673-0b9c6354a888.png)
(1)求证:DG
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
(2)求直线DG与平面PBC所成角的正弦值.
您最近一年使用:0次
2021-11-24更新
|
276次组卷
|
3卷引用:山东省潍坊市昌邑市潍坊实验中学2023-2024学年高二上学期数学期中模拟卷(一)
6 . 如图,在三棱柱
中,
,
,
分别为
,
,
的中点.
平面
;
(2)若平面
,求证:
为
的中点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5655d18106ff98a1dc175a876facc40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eedd56d72ca44daabb3a1afa3253d6a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
2022-09-14更新
|
2535次组卷
|
27卷引用:【市级联考】江苏省苏州市常熟市2018-2019学年高二(上)期中数学试卷
【市级联考】江苏省苏州市常熟市2018-2019学年高二(上)期中数学试卷河北省石家庄市元氏县第四中学2020-2021学年高一下学期期中数学试题人教A版(2019) 必修第二册 突围者 第八章 第五节 课时3 平面与平面平行(已下线)考点22 空间几何平行问题(练习)-2021年高考数学复习一轮复习笔记山西省山西大学附中2019-2020学年高二上学期10月模块诊断数学试题江西省赣州市赣县区第三中学2020-2021学年高二(零班,奥数班)九月月考数学(文)试题(已下线)专题8.4 直线、平面平行的判定及性质(讲)-2021年新高考数学一轮复习讲练测广东省连平县忠信中学2020-2021学年高一下学期第二次段考数学试题(已下线)专题8.4 直线、平面平行的判定及性质(讲)- 2022年高考数学一轮复习讲练测(新教材新高考)人教A版(2019) 必修第二册 实战演练 第八章 课时练习28 平面与平面平行(已下线)押全国卷(文科)第19题 立体几何-备战2022年高考数学(文)临考题号押题(全国卷)苏教版(2019) 必修第二册 必杀技 第13章 立体几何初步 13.2 基本图形位置关系 13.2.4 平面与平面的位置关系 课时1 两平面平行(已下线)第47讲 直线与平面、平面与平面平行山东省潍坊高密市第三中学2022-2023学年高二上学期9月月考数学试题安徽省滁州市定远县育才学校2021-2022学年高一下学期第二次月考数学试题(已下线)空间直线、平面的平行(已下线)8.5 空间直线、平面的平行(精练)-2022-2023学年高一数学一隅三反系列(人教A版2019必修第二册)(已下线)第八章立体几何初步章末题型大总结(精讲)(2)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)(已下线)第26讲 空间直线、平面的平行的判定4种常见方法(已下线)专题20 空间几何解答题(文科)-3北京市良乡附中2022-2023学年高一6月月考数学试题江西省吉安市泰和中学2022-2023学年高一下学期7月月考数学试题江苏省苏州市苏州园三中2022-2023学年高一下学期5月月考数学试题(已下线)第十三章 立体几何初步(压轴题专练)-单元速记·巧练(苏教版2019必修第二册)(已下线)专题19 平面与平面平行-《重难点题型·高分突破》(人教A版2019必修第二册)(已下线)8.5.3 平面与平面平行【第一课】“上好三节课,做好三套题“高中数学素养晋级之路(已下线)8.5.3 平面与平面平行【第二练】“上好三节课,做好三套题“高中数学素养晋级之路
解题方法
7 . 如图,在正三棱柱
中,
,
,点
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/4105b049-3d89-402c-abc8-c23ff7250b4a.png?resizew=164)
(1)求证:直线
与
为异面直线;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/4105b049-3d89-402c-abc8-c23ff7250b4a.png?resizew=164)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93ecad355286188fd317939fa50f9555.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51bf5b9fa4c861b5049c3d8ff9efb990.png)
您最近一年使用:0次
名校
8 . 如图,在三棱锥
中,侧面
是边长
的等边三角形,
,点
在线段
上,且
,
为
的中点,
为
的中点.
![](https://img.xkw.com/dksih/QBM/2021/10/19/2832978001182720/2840465106190336/STEM/cca55ab32d7a431ca932117c5fac276c.png?resizew=156)
(1)求证:
平面
;
(2)若二面角
的平面角的大小为
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d3d8325da8d020eb390d912ba989452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ab6c6718158d864225adeab55c8774a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/2021/10/19/2832978001182720/2840465106190336/STEM/cca55ab32d7a431ca932117c5fac276c.png?resizew=156)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf29d07c3751c41ab3503065a5a5052e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3b9a20c31e397ae1dc8a44baf7de91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
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2021-10-30更新
|
855次组卷
|
3卷引用:浙江省绍兴市诸暨中学2021-2022学年高二(平行班)上学期期中数学试题
浙江省绍兴市诸暨中学2021-2022学年高二(平行班)上学期期中数学试题浙江省云峰联盟2021-2022学年高三上学期10月联考数学试题(已下线)考点34 二面角【理】-备战2022年高考数学典型试题解读与变式
21-22高一下·江苏南通·期中
名校
解题方法
9 . 如图,在平行六面体
中,底面ABCD为菱形,平面
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2a3a21482176fb0deac21dc7df8df46.png)
![](https://img.xkw.com/dksih/QBM/2022/5/16/2980610696609792/2981280855695360/STEM/1e070e9c-fab1-4d4b-aa52-4a6b99505a30.png?resizew=243)
(1)证明:
;
(2)若E,F分别为棱
与
上的点,且平面
平面
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0671b4776e142e17a79af5b3f0378ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2a3a21482176fb0deac21dc7df8df46.png)
![](https://img.xkw.com/dksih/QBM/2022/5/16/2980610696609792/2981280855695360/STEM/1e070e9c-fab1-4d4b-aa52-4a6b99505a30.png?resizew=243)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21bca803b039847c31175b47701e33a4.png)
(2)若E,F分别为棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3e287d16421733e5fcb1c49fa22107d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68329e13570eccb6e87f6545d65dfd2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f8b132279fe16b74442a773c3477f66.png)
您最近一年使用:0次
10 . 如图,在长方体
中,
,
分别是线段
,
的中点.
平面
;
(2)若
,直线
与
所成角的余弦值是
,求四面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a407b262c22419f73396170ecdc849.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/635a764c14e95e53a7a160d84706a449.png)
您最近一年使用:0次
2022-07-10更新
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622次组卷
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6卷引用:北京市第八十中学2023-2024学年高一下学期期中考试数学试题
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