1 . 等腰直角三角形
中,
,
为
的中点,正方形
与三角形
所在的平面互相垂直.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/67666b0f-8990-4000-a144-65c09f79ab1c.png?resizew=220)
(Ⅰ)求证:
平面
;
(Ⅱ)若
,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.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/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/67666b0f-8990-4000-a144-65c09f79ab1c.png?resizew=220)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1c920d02068d0e63ffdab70786c526d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4294ffdba16ae69fd03b13959d682aba.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea848cd2aa3a464618020475097949fc.png)
您最近一年使用:0次
2019-12-30更新
|
1229次组卷
|
5卷引用:江西省南昌市第八中学2019-2020学年高三上学期期末文科数学试题
2 . 如图所示,在四棱锥
中,
是正三角形,四边形
为直角梯形,点
为
中点,且
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/16d0e614-4f1d-44de-a6ce-28e68bbfda27.png?resizew=106)
(1)求证:平面
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3814287dbb60d478bffc5366f9928b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f90126f831d6600522ecaa66c2a8b9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64b3539fcb35e07fcf3339eb04e7748d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a19338598965bb3856cdd0236bbf694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/251a0e63b401d131f69677ccf5fabacf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/16d0e614-4f1d-44de-a6ce-28e68bbfda27.png?resizew=106)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed5f0cfc1049f84a04c81bd213afb8d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
您最近一年使用:0次
名校
3 . 如图,在四棱锥
中,底面
是菱形,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/fb0f3082-1746-45a1-8c1e-10c77b10b3b1.png?resizew=206)
(1)证明:
;
(2)若面
面
,
,
,
,求
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d01f3e2aff36c97b5003096159a31a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/fb0f3082-1746-45a1-8c1e-10c77b10b3b1.png?resizew=206)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bec688f658f331260097c8936dffc485.png)
(2)若面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dd470cd9dfcde7f7e1762af28bc649c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15092e0f7fe3187ade0f10899e8dec8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a46dc0bb5d8fa33583817e530a5d21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d923a338dd2d2e29336b42574d38448.png)
您最近一年使用:0次
2019-11-30更新
|
1634次组卷
|
13卷引用:江西省抚州市临川第二中学2019-2020学年高三上学期期中数学(文)试题
江西省抚州市临川第二中学2019-2020学年高三上学期期中数学(文)试题2020届江西省临川二中、临川二中实验学校高三上学期期中数学(文)试题【市级联考】广东省肇庆市2019届高三第二次(1月)统一检测数学文试题黑龙江省鹤岗市第一中学2019-2020学年高三上学期12月月考数学(文)试题(已下线)2020届高三12月第02期(考点07)(文科)-《新题速递·数学》2020届安徽省庐巢七校联盟高三第五次联考数学(文)试题江西省上饶市横峰中学、弋阳一中、铅山一中2020-2021学年高二(统招班)上学期期中考试数学(文)试题湖南省衡阳市第八中学2018-2019学年高二下学期期末数学(文)试题湖南省衡阳市八中2018-2019学年下期高二期期末考试文科数学试题安徽省铜陵市第一中学2019-2020学年高二上学期12月月考数学(文)试题山西省洪洞县新英学校2020-2021学年高二上学期期中数学(理)试题重庆市暨华中学2020-2021学年高二上学期第二次月考数学试题四川省遂宁中学校2020-2021学年高二上学期第二次月考数学(文)试题
4 . 如图,菱形
所在平面与
所在平面垂直,且
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/eb560bfc-270e-4988-83c3-b6943182c5e0.png?resizew=185)
(1)求证:
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3814287dbb60d478bffc5366f9928b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/130e684c831039a1e49c7f7f554959bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9e8e717cd627ae77de4f589c163f2bf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/eb560bfc-270e-4988-83c3-b6943182c5e0.png?resizew=185)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b4424cb0af429b92e1fc168c4c70de4.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
您最近一年使用:0次
2019-11-21更新
|
420次组卷
|
2卷引用:2020届江西省名校学术联盟高三教学质量检测数学(文)试题
5 . 如图,四面体
中,
是边长为1的正三角形,
是直角三角形,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/6af63c35-6ce4-4496-a163-0a90be8b6b13.png?resizew=184)
(1)证明:平面
平面
;
(2)若点
为
的中点,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f8f01137e92c0f2e63467036ae9cce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ecb138a844ef11bb3214cff0a475c9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5fc4ad65b723b6a8da4c8dac154e6e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/6af63c35-6ce4-4496-a163-0a90be8b6b13.png?resizew=184)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17580410bf63dba4fe164265afaac4cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
您最近一年使用:0次
2019-10-03更新
|
637次组卷
|
5卷引用:江西省抚州市临川一中2019-2020届高三上学期第一次联合考试 数学(文科)试题
江西省抚州市临川一中2019-2020届高三上学期第一次联合考试 数学(文科)试题2019年10月江西省临川第一中学高三上学期第一次联考数学(文)试题(已下线)专题8.5 直线、平面垂直的判定及其性质(讲)-浙江版《2020年高考一轮复习讲练测》福建省莆田第一中学2019-2020学年高三上学期期中考试数学(文)试题(已下线)专题8.5 直线、平面垂直的判定及性质(讲)-2021年新高考数学一轮复习讲练测
名校
6 . 如图
,在梯形
中,
,
,
为
的中点,
是
与
的交点,将
沿
翻折到图
中
的位置,得到四棱锥
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/1479b53f-bec0-4f63-b572-9e04d3b5b352.png?resizew=420)
(1)求证:
;
(2)当
,
时,求
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4299cca48ff6abfb252ef73b5e62317d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3814287dbb60d478bffc5366f9928b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b04e2f190be01e1ae0a21eb44e4dce83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db2b1c641b93caae9b7a82441e4ba70.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/1479b53f-bec0-4f63-b572-9e04d3b5b352.png?resizew=420)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed2a23c5569ecf4ab6ccf927a4ab46f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783a833992e0862211a15fec2d3e3dda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7470868b0a5dc869acc97e586cb06477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eddaf3f33bd9a99162c061c9dd99aee.png)
您最近一年使用:0次
2019-09-19更新
|
1020次组卷
|
4卷引用:江西省临川第一中学2019-2020学年高三上学期10月月考数学(文)试题
江西省临川第一中学2019-2020学年高三上学期10月月考数学(文)试题广东省广雅中学、执信、六中、深外四校2020届高三8月开学联考数学文试题(已下线)专题8.8 第八章 空间向量与立体几何(单元测试)(测)-浙江版《2020年高考一轮复习讲练测》广东省执信中学2019-2020学年高二上学期9月月考数学试题
7 . 如图,已知矩形ABCD中,AB=2,AD=1.将矩形沿对角线BD折起,使A移到点P,P在平面BCD上的投影O恰好落在CD边上.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/7d46b12c-8cd1-4f56-b9b2-ab7fe5c1693a.png?resizew=210)
(1)证明:DP⊥平面BCP;
(2)求点O到平面PBD的距离.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/7d46b12c-8cd1-4f56-b9b2-ab7fe5c1693a.png?resizew=210)
(1)证明:DP⊥平面BCP;
(2)求点O到平面PBD的距离.
您最近一年使用:0次
名校
解题方法
8 . 如图所示,在梯形
中,
∥
,
⊥
,
,
⊥平面
,
⊥
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/c32e0b67-73e3-402a-83ba-a0731218d8c0.png?resizew=163)
(1)证明:
⊥平面
;
(2)若
,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829018a6ca0aff95d89e3f7cd943274e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/c32e0b67-73e3-402a-83ba-a0731218d8c0.png?resizew=163)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f6967901d6c855864df01e7bf7a15c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次
2019-07-11更新
|
3909次组卷
|
5卷引用:甘肃省天水市一中2020届高三一轮复习第一次模拟考试文科数学试题
9 . 已知空间几何体
中,
与
均为边长为
的等边三角形,
为腰长为
的等腰三角形,平面
平面
,平面
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/31aaaf97-dd97-4f29-9688-76c2f6be6b0b.png?resizew=170)
(1)试在平面
内作一条直线,使直线上任意一点
与
的连线
均与平面
平行,并给出详细证明
(2)求点
到平面
的距离
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df6d51738ac1bc8b9530ea4a55745c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc4b17ce6e90cd3810a3696262e94c1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50690dab38f4512eb72e18b7f86cf6f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79c1acdd27cebb11e0266464b03b3afb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/31aaaf97-dd97-4f29-9688-76c2f6be6b0b.png?resizew=170)
(1)试在平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
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2019-06-05更新
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461次组卷
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5卷引用:【校级联考】江西省名校(临川一中、南昌二中)2019届高三5月联合考数学(文)试题
【校级联考】江西省名校(临川一中、南昌二中)2019届高三5月联合考数学(文)试题(已下线)专题8.4 直线、平面平行的判定及其性质(讲)-浙江版《2020年高考一轮复习讲练测》(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(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)(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)
10 . 如图1,已知正方体
的棱长为
,
为棱
的中点,
分别是线段
上的点,若三棱锥
的俯视图如图2,则点
到平面
距离的最大值为
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/be4325de-5b79-439b-b7d9-9cac5a511b71.png?resizew=274)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a5f302c1c2f7e1b46cad05594ed672e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d40f4ffa98583e2bc759e634c3f998.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de938433cfaf25cb38dd5c9d915bb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358cdecf669033e648c21dcf675df9b5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/be4325de-5b79-439b-b7d9-9cac5a511b71.png?resizew=274)
A.![]() | B.![]() | C.![]() | D.![]() |
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