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【教案梳理】冀教版初中数学九年级下册

  • 2026-04-07 05:43:50
【教案梳理】冀教版初中数学九年级下册
教案梳理

 29.1点与圆的位置关系 29.2直线与圆的位置关系 29.3切线的性质和判定 29.4切线长定理 29.5正多边形与圆 30.1二次函数 30.2二次函数的图像和性质 30.3由不共线三点的坐标确定二次函数 30.4二次函数的应用 30.5二次函数与一元二次方程的关系 31.1确定事件和随机事件 31.3用频率估计概率 31.2随机事件的概率 31.4用列举法求简单事件的概率 32.1投影 32.2视图 32.3直棱柱和圆锥的侧面展开图

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  1. CONNECT:[ UseTime:0.000575s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000941s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000370s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000259s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000571s ]
  6. SELECT * FROM `set` [ RunTime:0.000231s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000567s ]
  8. SELECT * FROM `article` WHERE `id` = 465031 LIMIT 1 [ RunTime:0.000426s ]
  9. UPDATE `article` SET `lasttime` = 1775854600 WHERE `id` = 465031 [ RunTime:0.011889s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.002006s ]
  11. SELECT * FROM `article` WHERE `id` < 465031 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000445s ]
  12. SELECT * FROM `article` WHERE `id` > 465031 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000434s ]
  13. SELECT * FROM `article` WHERE `id` < 465031 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000739s ]
  14. SELECT * FROM `article` WHERE `id` < 465031 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000574s ]
  15. SELECT * FROM `article` WHERE `id` < 465031 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001697s ]
0.109397s