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湘科版小学科学六年级
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湘科版小学科学六年级. 物竞天择. 执教：湖南省株洲市天元区白鹤小学 卢淼鸿. 探索 ∙ 发现. 环境. 关注：是什么原因导致恐龙灭绝的？. 《 探索 ∙ 发现 》. 物竞天择. 游 戏 找 虫 子. 哪种虫子更适应环境呢？. 物竞天择 , 适者生存. 严 复. 毛色 体型 裸露器官. 北极熊. 棕熊. 黑熊. 物竞天择，适者生存. 竹节虫. 枯叶蝶. 马的进化历程. 野鸭. 狼. 家鸭. 狗. 鲫鱼. 金鱼. 稗子. 杂交水稻. 水稻. 无籽西瓜. 野生西瓜. 物竞天择，适者生存. 人类的起源 ……. 谢谢
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湘科版小学科学六年级
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