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gyzel 橢圓的反射
Author:
均一
GeoGebra
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算柱 (兩位數)
三位數除以一位數（一）
錐體建築師
兩組對邊相等和有直角的四邊形
四邊形的特性
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hihi
Geogebra學習檔案
Plane
glt-c02-09 五角柱旋轉
小六容量和體積_裝箱問題
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Linear Equations
Polygons
Logic
Sine
Constructions