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【PPT课件】高中生物学必修2:§3.2 DNA的结构 | 匹配教师教学用书上的教学案例

  • 2026-04-03 21:28:22
【PPT课件】高中生物学必修2:§3.2 DNA的结构 | 匹配教师教学用书上的教学案例

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教学案例 | 高中生物学《必修2》：§3.2 DNA的结构

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3.2 DNA的结构
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  1. CONNECT:[ UseTime:0.001101s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001619s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000696s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000684s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001385s ]
  6. SELECT * FROM `set` [ RunTime:0.000622s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001457s ]
  8. SELECT * FROM `article` WHERE `id` = 479703 LIMIT 1 [ RunTime:0.000999s ]
  9. UPDATE `article` SET `lasttime` = 1775527999 WHERE `id` = 479703 [ RunTime:0.007848s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000667s ]
  11. SELECT * FROM `article` WHERE `id` < 479703 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001181s ]
  12. SELECT * FROM `article` WHERE `id` > 479703 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001151s ]
  13. SELECT * FROM `article` WHERE `id` < 479703 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.005045s ]
  14. SELECT * FROM `article` WHERE `id` < 479703 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.003195s ]
  15. SELECT * FROM `article` WHERE `id` < 479703 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.008991s ]
0.194060s