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孵化小鸡课件|科学三年级全套

  • 2026-11-03 23:35:49
孵化小鸡课件|科学三年级全套

孵化小鸡课件｜科学三年级全套

今天分享三年级科学第三单元《孵化小鸡》课件。

配套齐全：25页带动画PPT（可编辑）＋教案＋逐字稿＋一课一练（含答案）＋必背问答＋单课知识点。

这课讲透了小鸡是怎样出生的：
① 小鸡由种鸡蛋经过大约21天孵化而来；
② 孵化要控制好温度、湿度、通风，还要定时翻蛋、耐心照蛋观察；
③ 像鸡这样先产卵再孵化的繁殖方式叫卵生，靠卵生繁殖的动物叫卵生动物。

想省备课时间的科学老师，这套可以直接上手。

#小学科学 #三年级科学 #孵化小鸡 #卵生动物 #动物的分类 #科学课件 #小鸡孵化过程 #照蛋 #种鸡蛋 #科学教案

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七上历史第13课东汉的兴衰课件逐字稿

基本 文件 流程 错误 SQL 调试
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  1. CONNECT:[ UseTime:0.000464s ] mysql:host=172.18.0.4;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000776s ]
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  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000400s ]
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  6. SELECT * FROM `set` [ RunTime:0.000345s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000772s ]
  8. SELECT * FROM `article` WHERE `id` = 542045 LIMIT 1 [ RunTime:0.000402s ]
  9. UPDATE `article` SET `lasttime` = 1793979642 WHERE `id` = 542045 [ RunTime:0.001606s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000361s ]
  11. SELECT * FROM `article` WHERE `id` < 542045 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000517s ]
  12. SELECT * FROM `article` WHERE `id` > 542045 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000920s ]
  13. SELECT * FROM `article` WHERE `id` < 542045 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001222s ]
  14. SELECT * FROM `article` WHERE `id` < 542045 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000659s ]
  15. SELECT * FROM `article` WHERE `id` < 542045 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000881s ]
0.089074s