当前位置：首页>课件>【第41期】【教学课件】北师大版九年级下册《二次项系数不为1的一元二次方程解法》

【第41期】【教学课件】北师大版九年级下册《二次项系数不为1的一元二次方程解法》

  • 2026-05-12 11:05:56
【第41期】【教学课件】北师大版九年级下册《二次项系数不为1的一元二次方程解法》

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  1. CONNECT:[ UseTime:0.000562s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000740s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000377s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000257s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000478s ]
  6. SELECT * FROM `set` [ RunTime:0.000194s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000506s ]
  8. SELECT * FROM `article` WHERE `id` = 498954 LIMIT 1 [ RunTime:0.000754s ]
  9. UPDATE `article` SET `lasttime` = 1778633131 WHERE `id` = 498954 [ RunTime:0.010691s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000248s ]
  11. SELECT * FROM `article` WHERE `id` < 498954 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000426s ]
  12. SELECT * FROM `article` WHERE `id` > 498954 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000904s ]
  13. SELECT * FROM `article` WHERE `id` < 498954 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000632s ]
  14. SELECT * FROM `article` WHERE `id` < 498954 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.005062s ]
  15. SELECT * FROM `article` WHERE `id` < 498954 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.009812s ]
0.099719s