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【初中化学】新人教版电子课本与答案

  • 2026-08-29 17:54:44
【初中化学】新人教版电子课本与答案
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教材类丨【鲁教版,2024】初中地理

2026年秋教材|初中九年级上册化学电子课本(仅供暑假预习备课用)

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  1. CONNECT:[ UseTime:0.035220s ] mysql:host=43.226.63.196;port=3307;dbname=c_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.026141s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.023115s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.023205s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.023698s ]
  6. SELECT * FROM `set` [ RunTime:0.023286s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.023847s ]
  8. SELECT * FROM `article` WHERE `id` = 470331 LIMIT 1 [ RunTime:0.023274s ]
  9. UPDATE `article` SET `lasttime` = 1788192851 WHERE `id` = 470331 [ RunTime:0.024061s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.023364s ]
  11. SELECT * FROM `article` WHERE `id` < 470331 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.023301s ]
  12. SELECT * FROM `article` WHERE `id` > 470331 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.023374s ]
  13. SELECT * FROM `article` WHERE `id` < 470331 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.057355s ]
  14. SELECT * FROM `article` WHERE `id` < 470331 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.024145s ]
  15. SELECT * FROM `article` WHERE `id` < 470331 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.037225s ]
0.444462s