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好文共欣赏|初中数学新教材“正负数及有理数概念”的比较研究——以北师大版、人教版与湘教版为例

  • 2026-05-09 00:40:28
好文共欣赏|初中数学新教材“正负数及有理数概念”的比较研究——以北师大版、人教版与湘教版为例

      本文是锁建军,刘成龙发表在《中学数学研究》2025年第12期上的文章.

       参考文献格式：       

锁建军,刘成龙. 初中数学新教材“正负数及有理数概念”的比较研究——以北师大版、人教版与湘教版为例 [J]. 中学数学研究, 2025, (12): 1-4.

        来源 | 《中国知网》

       声明： 以上内容仅作分享，版权属原作者及原出处所有。如涉及版权等问题，请联系我们处理。

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  1. CONNECT:[ UseTime:0.000529s ] mysql:host=127.0.0.1;port=3306;dbname=c_sjds;charset=utf8mb4
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  11. SELECT * FROM `article` WHERE `id` < 467884 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000576s ]
  12. SELECT * FROM `article` WHERE `id` > 467884 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000435s ]
  13. SELECT * FROM `article` WHERE `id` < 467884 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.006519s ]
  14. SELECT * FROM `article` WHERE `id` < 467884 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.007275s ]
  15. SELECT * FROM `article` WHERE `id` < 467884 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.004733s ]
0.124890s