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30年后才看懂,小学数学课本封面的秘密!

  • 2026-09-17 03:41:50
30年后才看懂,小学数学课本封面的秘密!

30年后才看懂，小学数学课本封面的秘密！

看到第六章:长方形和正方形的面积，才恍然大悟，封面的这只熊猫为什么在拼方格。有点像有的时候读不懂的书，经历了些事，过了些年岁才明白一样。#成长后的领悟 #长方形正方形面积公式 #小学数学课本封面秘密 #熊猫拼方格的启示

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安徽,38分钟前,
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26年春人教版小学一年级语文下册新教材电子课本无水印(完整版PDF,可打印)

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  1. CONNECT:[ UseTime:0.000572s ] mysql:host=172.18.0.4;port=3306;dbname=c_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000686s ]
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  6. SELECT * FROM `set` [ RunTime:0.000320s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000641s ]
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  9. UPDATE `article` SET `lasttime` = 1789801986 WHERE `id` = 464380 [ RunTime:0.001417s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000352s ]
  11. SELECT * FROM `article` WHERE `id` < 464380 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000489s ]
  12. SELECT * FROM `article` WHERE `id` > 464380 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000431s ]
  13. SELECT * FROM `article` WHERE `id` < 464380 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000677s ]
  14. SELECT * FROM `article` WHERE `id` < 464380 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000655s ]
  15. SELECT * FROM `article` WHERE `id` < 464380 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000709s ]
0.084373s