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反射定律 Law of Reflection
Author:
W.L. Wong, Albert
GeoGebra
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兩組對邊相等和有直角的四邊形
異分母分數減法
GeoGebra笔记功能体验课件
球體建築師
算柱 (兩位數)
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AREA
光源距離 Light Source Distance
線性規劃xgeogebra
圖解畢氏定理
可轉波單車
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Complex Numbers
Hyperbola
Variance
Rhombus
Polygons