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《硫的轉化》物質的性質與轉化PPT(第二課時硫酸酸雨及其防治) Free Resources Download
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《硫的轉化》物質的性質與轉化PPT(第二課時硫酸酸雨及其防治)
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"Transformation of Sulfur" Nature and Transformation of Substances PPT (Second Lesson: Sulfuric Acid Rain and Its Prevention and Control)
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"Chemical Properties of Acids and Bases" Acids and Bases PPT Courseware 3
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"Sulfur and Its Compounds" Important non-metallic elements in chemical production PPT (Lesson 3: Transformation of sulfur-containing substances in different valence states)
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"Transformation of Matter" PPT (Second Lesson)
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