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2026年八年级数学寒假精品讲义-北师大版【第7讲 解题技巧专题:三角形中的倒角模型之双角平分线和高线模型】

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2026年八年级数学寒假精品讲义-北师大版【第7讲 解题技巧专题:三角形中的倒角模型之双角平分线和高线模型】

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2026年八年级数学寒假精品讲义-北师大版【第6讲 解题技巧专题:三角形中的倒角模型之A字、8字、燕尾模型】

2026年八年级数学寒假精品讲义-北师大版【第9讲 解题技巧专题:等腰(直角)三角形中的分类讨论思想】

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  1. CONNECT:[ UseTime:0.000696s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001102s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000659s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.003167s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000994s ]
  6. SELECT * FROM `set` [ RunTime:0.000459s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001146s ]
  8. SELECT * FROM `article` WHERE `id` = 463447 LIMIT 1 [ RunTime:0.000681s ]
  9. UPDATE `article` SET `lasttime` = 1776113206 WHERE `id` = 463447 [ RunTime:0.015613s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.004852s ]
  11. SELECT * FROM `article` WHERE `id` < 463447 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001182s ]
  12. SELECT * FROM `article` WHERE `id` > 463447 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001247s ]
  13. SELECT * FROM `article` WHERE `id` < 463447 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.006677s ]
  14. SELECT * FROM `article` WHERE `id` < 463447 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001387s ]
  15. SELECT * FROM `article` WHERE `id` < 463447 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.004855s ]
0.181774s