<![CDATA[yangyanjun的blog]]> http://blog.sysuschool.com/u/yangyanjun/index.html <![CDATA[人类对细菌和真菌的利用]]> http://blog.sysuschool.com/u/yangyanjun/archives/2023/50067.html 件2022－2023学年人教版生物八年级上册(1).pptx
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]]> yangyanjun 2023/1/9 17:53:00 <![CDATA[保护生物的多样性]]> http://blog.sysuschool.com/u/yangyanjun/archives/2023/50063.html 6.3保护生物的多样性2022h.pptx
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]]> yangyanjun 2023/1/9 17:38:00 <![CDATA[DNA的复制（第2课时）]]> http://blog.sysuschool.com/u/yangyanjun/archives/2022/49299.html 2学年高一生物同步优质课件（人教版2019必修2）.pptx
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