名校
解题方法
1 . 如图所示的平行六面体
中,已知
,
,
,
为
上一点,且
,点
棱
上,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/2b5a914d-fbf1-499c-8feb-3424a4eec78f.png?resizew=215)
(1)用
,
,
表示
;
(2)若
,求
;
(3)若
,求证:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf1132330203ed3270a52e0fbd0f34e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13601fc499850fce16debbab6c627ab7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d76ebfa48fbd7a62488731294de8df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28408efa93ec310ccdf156c02fc6c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbafedc202bd0d86c4dfdece9f8f4fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c14184f726fecb76ac6ab3f0b6dfd6f7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/2b5a914d-fbf1-499c-8feb-3424a4eec78f.png?resizew=215)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7559d65befe0b85c8929f57c9436cd26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd98a891fa65f2fc6688001b03185d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4648d56ec5ba86c288bc22737250ba0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc14c781097654ee29b6b5435c31480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441809d6ce2df21a85b390cdce9b1112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/982d01f052709b72afeaf1015fc7acc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a114d968325e799e60de7ae82d1936.png)
您最近一年使用:0次
解题方法
2 . 如图,在三棱柱
中,
、
、
分别为
、
、
的中点.
(1)若三棱柱
为正三棱柱,且
,三棱锥
的体积为
,求三棱柱
的高.
(2)在线段
上是否存在一点
,使得
平面
?若存在,指出点
的位置;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/1/2a5371ad-08b7-4e7f-8cf5-3362ca6630d2.png?resizew=170)
(1)若三棱柱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a57dfb78e8579cc68dbfca90f80a1c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8badfeb9e7556486e02ab60df4dd32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf9628142422a4884bd59538da6d312.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
您最近一年使用:0次
2023-07-30更新
|
214次组卷
|
2卷引用:湖南省衡阳市衡山县德华盛星源高级中学有限公司2022-2023学年高一下学期期中数学试题
解题方法
3 . 如图,平面
平面
,四边形
为矩形,
和
均为等腰直角三角形,且
.
![](https://img.xkw.com/dksih/QBM/2021/10/24/2836443365507072/2838620690685952/STEM/666fa56bf29c492886ea5d466a5bca9c.png?resizew=187)
(1)求证:平面
平面
;
(2)若点
为线段
上任意一点,求证:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf9a6db3571fa57bfa2d5e4d44c51b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5ec3f44cd7f4689920e5df628177737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c5fd1c0e29b240c0b8906ca9054a46.png)
![](https://img.xkw.com/dksih/QBM/2021/10/24/2836443365507072/2838620690685952/STEM/666fa56bf29c492886ea5d466a5bca9c.png?resizew=187)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39282bdf319f30d7bc261e2e3ab3b1e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e60db93cd34a54c98da9ff9782656c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
您最近一年使用:0次
2021-10-27更新
|
647次组卷
|
3卷引用:辽宁省辽东南协作体2021-2022学年高三上学期期中考试数学试题
解题方法
4 . 如图,在四棱锥
中,
为等边三角形,且边长为2,BC垂直于AB,
,E为PA的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/25/b00516d3-fc22-441f-9d36-3f42b0bd698c.png?resizew=173)
(1)证明:
平面PBC.
(2)若
底面ABCD,且
,求点A到平面PBC的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a9e0a1f391cc42fbc19cf5b92a2569.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/25/b00516d3-fc22-441f-9d36-3f42b0bd698c.png?resizew=173)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7440b41636c761b0910639e310ff7dfb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e0c2b528dfd10dc3e6d79ad8bb855d.png)
您最近一年使用:0次
名校
解题方法
5 . 如图,边长为
的等边
所在平面与菱形
所在平面互相垂直,且
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/10/915d88ac-80df-46d6-ae7f-523fec1081d4.png?resizew=216)
(1)求证:
平面
;
(2)求多面体
的体积
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e53b212640dadf751ef7f65a78a209.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1433137fef4e88aa38f2503cec900358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7579755d7d17bd72d97b03df323aefa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e302e173e60f3e6136369d0c4908d5ac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/10/915d88ac-80df-46d6-ae7f-523fec1081d4.png?resizew=216)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3521d6f223a2d7f597f8613c4530dd1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求多面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
您最近一年使用:0次
2020-08-27更新
|
797次组卷
|
14卷引用:湖南省长沙市宁乡市三校(宁乡七中、九中、十中)2021-2022学年高一下学期期中数学试题
湖南省长沙市宁乡市三校(宁乡七中、九中、十中)2021-2022学年高一下学期期中数学试题安徽省合肥市2020届高三高考数学(文科)三模试题(已下线)专题20+立体几何综合-2020年高考数学(文)母题题源解密(全国Ⅱ专版)安徽省合肥市2020届高三下学期第三次教学质量检测数学(文)试题陕西省宝鸡市渭滨区2021届高三下学期适应性训练(一)文科数学试题黑龙江省实验中学2021届高三下学期四模数学(文)试题陕西省西安中学2021届高三下学期第八次模拟考试文科数学试题四川省仁寿第一中学校南校区2020-2021学年高二5月第二次质量检测数学(文)试题陕西省安康中学2021-2022学年高二上学期第一次月考数学试题(已下线)专题8-5 立体几何大题15种归类(平行、垂直、体积、动点、最值等非建系)-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)河南省中原名校联盟2021-2022学年高三下学期4月适应性联考文科数学试题(已下线)专题20 立体几何综合-2020年高考数学(文)母题题源解密(全国Ⅱ专版)宁夏银川市第二中学2023届高三模拟数学(文)试题四川省泸州市泸县第四中学2024届高三下学期开学考试数学(文)试题
解题方法
6 . 如图,已知四棱锥
的底面是平行四边形,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/8e9531ac-b46c-4ad9-b360-2e1ceaffd963.png?resizew=160)
(1)求证:
平面
;
(2)若点
分别是棱
,
的中点,求证:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c3703cc0971a5c65eb388d6ee64862.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/8e9531ac-b46c-4ad9-b360-2e1ceaffd963.png?resizew=160)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
您最近一年使用:0次
2020-04-06更新
|
863次组卷
|
4卷引用:江苏省南京市2019-2020学年高二上学期期中数学试题
江苏省南京市2019-2020学年高二上学期期中数学试题江苏省徐州市铜山区大许中学2020-2021学年高二上学期调研测试数学试题安徽省合肥市双凤高级中学2022届高三二模文科数学试题(已下线)第03讲 空间直线、平面的平行 (高频考点—精讲)-2
7 . 在如图所示的几何体中,正方形
与梯形
所在平面相交,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/22/1e3705cf-bc51-44b3-9be2-f4544ea1df1c.png?resizew=175)
(1)证明:
平面
;
(2)若
平面
,试求异面直线
与
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d525d8b43670233010b604ddf383b4c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c56903f8f497bc868ef67bd3d8593d0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/22/1e3705cf-bc51-44b3-9be2-f4544ea1df1c.png?resizew=175)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2b5cfae407016cad45bbdefea05833.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662698361c6b3ddaf0c28a3c87be53e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
您最近一年使用:0次
名校
8 . 已知四边形
是矩形,
平面
,
、
分别是
、
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/3/a1ca062c-746b-413d-bf0a-49d0391f7a12.png?resizew=188)
(Ⅰ)求证:
平面
;
(Ⅱ)若二面角
为
,
,
,求
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/3/a1ca062c-746b-413d-bf0a-49d0391f7a12.png?resizew=188)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcafa398cc6b6079883e7ad153eb62d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9068f29d671d76d1e95ba3a4eaff5b96.png)
(Ⅱ)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21d9f756419912dd298a0d6857130c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c24a968c73e960698a572ab01e3698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9068f29d671d76d1e95ba3a4eaff5b96.png)
您最近一年使用:0次
2020-09-05更新
|
753次组卷
|
6卷引用:山东省济南市商河县第一中学2020-2021学年第一学期高二数学期中试题
9 . 如图,正方形
与梯形
所在的平面互相垂直,已知
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/d7239e5b-c1db-42b2-b0e8-ef2918b6cc37.png?resizew=165)
(1)求证:
平面
;
(2)求平面
与平面
所成锐二面角的余弦值;
(3)线段
上是否存在点
,使得平面
平面
?若存在,求出
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb2dd10731b99c0f4f89ee957f8a239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffda707068a4a1778e79da6f20fb86d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/d7239e5b-c1db-42b2-b0e8-ef2918b6cc37.png?resizew=165)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8ccd4181f956f6e0140bf0ab8f0716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
(3)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7084fef1f20c7af36659c1faa643ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cada49bc5cf1cf8615eaf91863d18535.png)
您最近一年使用:0次
2022高三·河北·专题练习
名校
解题方法
10 . 已知四棱锥
如图所示,
,
,
,平面
平面
,点
为线段
的中点.
![](https://img.xkw.com/dksih/QBM/2021/9/29/2818542764204032/2819401981984768/STEM/a716b7178d1349b2a609e342b1516685.png?resizew=219)
(1)求证:
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ea5d7cfb1712e1aad407159c3fc6a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91ff67dbfe0050270169791ae85ef940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18ce5e00b89a3cd9c39d45c13a0afed7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448cbac9a1ef3de7538a6b30cdc39582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2bc5e50b8dfa02601c70822252854a.png)
![](https://img.xkw.com/dksih/QBM/2021/9/29/2818542764204032/2819401981984768/STEM/a716b7178d1349b2a609e342b1516685.png?resizew=219)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78172568aac9805d2ea2d5f742bf80c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9c9cfa597b444b5c9dbae7a825a695.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee4a6b8ef3e79b4482388c3391d8b18.png)
您最近一年使用:0次
2021-09-30更新
|
497次组卷
|
3卷引用:四川省遂宁中学校2021-2022学年高二上学期期中考试数学(理)试题
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