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【课件欣赏】从“无”到“有”——无明显现象化学反应的实验探究

  • 2026-04-16 09:41:08
【课件欣赏】从“无”到“有”——无明显现象化学反应的实验探究

无明显现象化学反应的实验探究

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  1. CONNECT:[ UseTime:0.000832s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000839s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000423s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000308s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000655s ]
  6. SELECT * FROM `set` [ RunTime:0.000233s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000729s ]
  8. SELECT * FROM `article` WHERE `id` = 481618 LIMIT 1 [ RunTime:0.000902s ]
  9. UPDATE `article` SET `lasttime` = 1777303682 WHERE `id` = 481618 [ RunTime:0.002094s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000348s ]
  11. SELECT * FROM `article` WHERE `id` < 481618 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000511s ]
  12. SELECT * FROM `article` WHERE `id` > 481618 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001047s ]
  13. SELECT * FROM `article` WHERE `id` < 481618 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001571s ]
  14. SELECT * FROM `article` WHERE `id` < 481618 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001287s ]
  15. SELECT * FROM `article` WHERE `id` < 481618 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003856s ]
0.107233s