Category: 19级

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220414-元素周期律复习课-08190212

Added by 4 年 ago

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220609-元素化合物说课-08190234

Added by 4 年 ago

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20220516-地球自转的地理意义-10190204

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220505-习题课-08190339

Added by 4 年 ago

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211217-离子反应-08190349

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2022-3-17 钠及其化合物 08190424

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220428 氯及其化合物复习课-26190429

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220519-氧化还原反应说课-08190339

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220519-概念课说课-08190125

Added by 4 年 ago

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