当前位置：首页>郑州>郑州高中数学——导数的概念及其意义 (题型四:导数的几何意义之求切线斜率、题型五:导数的几何意义之切线存在性判断)

郑州高中数学——导数的概念及其意义 (题型四:导数的几何意义之求切线斜率、题型五:导数的几何意义之切线存在性判断)

  • 2026-03-31 06:33:04
郑州高中数学——导数的概念及其意义 (题型四:导数的几何意义之求切线斜率、题型五:导数的几何意义之切线存在性判断)
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  1. CONNECT:[ UseTime:0.000812s ] mysql:host=127.0.0.1;port=3306;dbname=i460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001247s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.003723s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.015726s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001489s ]
  6. SELECT * FROM `set` [ RunTime:0.000530s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001467s ]
  8. SELECT * FROM `article` WHERE `id` = 501701 LIMIT 1 [ RunTime:0.000889s ]
  9. UPDATE `article` SET `lasttime` = 1775111329 WHERE `id` = 501701 [ RunTime:0.028314s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000322s ]
  11. SELECT * FROM `article` WHERE `id` < 501701 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000520s ]
  12. SELECT * FROM `article` WHERE `id` > 501701 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000377s ]
  13. SELECT * FROM `article` WHERE `id` < 501701 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000683s ]
  14. SELECT * FROM `article` WHERE `id` < 501701 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001248s ]
  15. SELECT * FROM `article` WHERE `id` < 501701 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.011147s ]
0.219680s