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Author:
孙豫
GeoGebra
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三位數除以一位數(二)
畫出對稱圖形
画直线等分三角形的面积
柱體建築師
【案例】2018年全国1卷理科12题
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挑战中考压轴题
球體的特性 (old)
Prism and Cylinder 3
三角函數with sine, cosine圖形
电场线模拟
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Cosine
Similarity Transformation or Similarity
Coordinates
Percentages
Quadrilaterals