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4-Stroke Engine 的副本
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万物皆数
GeoGebra
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百分數及其應用
圓的基本性質
撒针估算面积实验
三角函数 的副本
第八周作业3
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凹面鏡成像
Is this a prism 5
平移
高中数学-复数-自测、自练实验
圆柱展开成平行四边形2
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Planes
Circle
Inequalities
Division
Equations