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170421—等差数列的求和—06140101

Added by 8 年 ago

255 Views8 Comments

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180504-牛顿第二定律-22150704

Added by 7 年 ago

255 Views0 Comments

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170511-22140814-燃烧的条件说课

Added by 8 年 ago

255 Views6 Comments

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180528-表格数据的图形化-22151902

Added by 7 年 ago

255 Views8 Comments

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150505-讲解技能-1415013

Added by 9 年 ago

255 Views0 Comments

170427-金属钠的性质-10140209

Added by 8 年 ago

255 Views5 Comments

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170504-氧化还原反应说课-22140806

Added by 8 年 ago

255 Views6 Comments

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170604-解二元一次方程组说课-08130239

Added by 8 年 ago

255 Views10 Comments

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180403-日新月异的信息技术-22151905

Added by 7 年 ago

255 Views8 Comments

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180608-地球运动的意义-22151005

Added by 7 年 ago

255 Views9 Comments

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