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正20面體展開
Author:
GEOGEBRA啟
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B0727121geogebra
Geogebra 入门
正方体展开图
直线簇
高考数学全国2卷全解
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伸展收縮變換
S3 Probability
二年級_柱體的觀察
三角層疊
試算表的應用
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Geometric Transformations
Rectangle
Centroid or Barycenter
Exponential Functions
Area
