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以前手画的透明胶片,现在的PPT比得了吗?

  • 2026-11-05 08:01:04
以前手画的透明胶片,现在的PPT比得了吗?

以前手画的透明胶片，现在的PPT比得了吗？

半透明的塑料胶片，边缘用胶布粘着，上面写着蓝色的钢笔字或者画着简易的图。上课时，老师把它架在老式幻灯机上，一拉灯绳，投影在幕布上。那时候全班看得聚精会神，生怕漏掉一个字。现在教室全换成了智能大屏，PPT做得酷炫立体，甚至还有动画演示，可台下的学生却经常昏昏欲睡。是当年的手写胶片太稀罕，还是现在的信息爆炸让孩子彻底麻木了？#老式幻灯机#老古董#7080后回忆#上学往事#教育内卷#老照片

作者提示: 个人观点，仅供参考
贵州,4分钟前,2026年10月30日
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  2. 运行时间 : 0.078630s [ 吞吐率：12.72req/s ] 内存消耗：4,308.45kb 文件加载：140
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=5151aa31b97a60082095894b4cdca59d
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  1. CONNECT:[ UseTime:0.000661s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000767s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000430s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000340s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000554s ]
  6. SELECT * FROM `set` [ RunTime:0.000268s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000587s ]
  8. SELECT * FROM `article` WHERE `id` = 569704 LIMIT 1 [ RunTime:0.000335s ]
  9. UPDATE `article` SET `lasttime` = 1794139115 WHERE `id` = 569704 [ RunTime:0.001092s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000336s ]
  11. SELECT * FROM `article` WHERE `id` < 569704 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000413s ]
  12. SELECT * FROM `article` WHERE `id` > 569704 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000417s ]
  13. SELECT * FROM `article` WHERE `id` < 569704 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000470s ]
  14. SELECT * FROM `article` WHERE `id` < 569704 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000570s ]
  15. SELECT * FROM `article` WHERE `id` < 569704 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000624s ]
0.090514s