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课件|九下历史第3课 美国内战

  • 2026-11-05 20:56:18
课件|九下历史第3课 美国内战
昨天晚上，又完成了第3课的修改。每次改完，总觉得还是存在一点小问题，反复进行细节的打磨，在各个设备中不断上传下载备份。
我这个课件主要风格就是简洁，版面统一协调，不搞花里胡哨，满屏杂乱的东西。当然，教学思路上也是中规中矩，没有什么创新亮点，这一点希望各位老师，能提出一下中肯的建议。🙏🙏🙏
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  1. CONNECT:[ UseTime:0.000597s ] mysql:host=172.18.0.4;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000885s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000434s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000348s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000497s ]
  6. SELECT * FROM `set` [ RunTime:0.000266s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000727s ]
  8. SELECT * FROM `article` WHERE `id` = 541310 LIMIT 1 [ RunTime:0.000368s ]
  9. UPDATE `article` SET `lasttime` = 1793995183 WHERE `id` = 541310 [ RunTime:0.001463s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000331s ]
  11. SELECT * FROM `article` WHERE `id` < 541310 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000477s ]
  12. SELECT * FROM `article` WHERE `id` > 541310 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000376s ]
  13. SELECT * FROM `article` WHERE `id` < 541310 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000642s ]
  14. SELECT * FROM `article` WHERE `id` < 541310 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000756s ]
  15. SELECT * FROM `article` WHERE `id` < 541310 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000682s ]
0.087902s