Category: 本科生

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190621-质量守恒定律说课-22160838

Added by 7 年 ago

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190621-质量守恒定律说课-92181603

Added by 7 年 ago

168 Views0 Comments

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190621-身边的空气-22160813

Added by 7 年 ago

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190621-醇的结构和性质-22160733

Added by 7 年 ago

235 Views0 Comments

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190621-金属镁的性质说课-22160830

Added by 7 年 ago

149 Views0 Comments

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190621-铝的氧化物和氢氧化物-22160801

Added by 7 年 ago

243 Views0 Comments

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190621—二氧化硫的性质和作用—22160840

Added by 7 年 ago

187 Views0 Comments

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190622-氢氧化铝性质和制备说课-22160826

Added by 7 年 ago

154 Views0 Comments

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190622-氯-22160835

Added by 7 年 ago

223 Views1 Comments

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190623-合成氨说课+授课-22160806

Added by 7 年 ago

189 Views0 Comments

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