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2025南京一中“凤凰杯九年级数学素养能力竞赛”

  • 2026-04-06 10:59:12
2025南京一中“凤凰杯九年级数学素养能力竞赛”

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2025年江苏省南京一中“凤凰杯九年级数学素养能力竞赛”

缺少深刻几何背景，压轴题将黯淡无光！                     ——揭示深圳中考压轴题纯几何背景

一道高考题的妙解及拓广

从平凡到神奇——沈几何原创最值

随笔一挥即为千古名证！——共线与等腰

一道经典奥林匹克题的探索

沈几何新春第一创——开启中考压轴命题新视界

名校拔尖人才模拟测试题

分享一道代数原创题

铁粉之问

人间美题！
一道矩形中考原创题

巧构对偶式——妙求数列和

几何不等式原创题

像！形神兼备——从沈几何原创到中考压轴的华丽蜕变！

发现与证明——挑战圆锥曲线中的至高境界！

发布一道中考折叠原创题

独家首发！2026年宿迁中学第三届清北班选拔考试数学试题

三角形中的一个面积关系—沈毅·成都

解答学生问的一个难题

致敬经典！一篇很有影响力的作品

一道经典几何难题的美妙证明/沈毅

史上最妙！2025全国高中数学联赛加试几何题的沈几何证明～沈毅几何研修室

一道沈几何原创题诞生-旋转的精彩！

一道IMO预选题的探索

同工与异曲！谈一道名校期中考试题

一个初三学生的疑问

发布一道中考原创题

答竞赛学生的一个提问

发布一个近期在知名期刊上发表的原创问题

巧证直角三角形

发表一个最新研究成果，欢迎品鉴

开启一种全新的中考命题方式-沈毅

高新之问

高平分角平分线

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  140. /yingpanguazai/ssd/ssd1/www/b.460.net.cn/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000366s ] mysql:host=127.0.0.1;port=3306;dbname=b460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000695s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000250s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000251s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000457s ]
  6. SELECT * FROM `set` [ RunTime:0.000191s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000488s ]
  8. SELECT * FROM `article` WHERE `id` = 503013 LIMIT 1 [ RunTime:0.000446s ]
  9. UPDATE `article` SET `lasttime` = 1775657998 WHERE `id` = 503013 [ RunTime:0.011696s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000296s ]
  11. SELECT * FROM `article` WHERE `id` < 503013 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000464s ]
  12. SELECT * FROM `article` WHERE `id` > 503013 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.002862s ]
  13. SELECT * FROM `article` WHERE `id` < 503013 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001819s ]
  14. SELECT * FROM `article` WHERE `id` < 503013 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000644s ]
  15. SELECT * FROM `article` WHERE `id` < 503013 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.008350s ]
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