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Watch Later 5:04

化學教室-第7章-7-離子化合物的名稱

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化學教室-第7章-6-離子化合物的化學式

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化學教室-第7章-5-離子鍵

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化學教室-第7章-4-離子的化學式

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化學教室-第7章-3-離子的分類

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化學教室-第7章-2-離子的形式

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化學教室-第7章-1-貴氣體的電子排佈

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Biological concepts Ch.2(19) - Summary of Nucleic acid

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Biological concepts Ch.2(18) - Essay of proteins

YU CHUN KEUNG MEMORIAL COLLEGE