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test geogebra 5.0
Author:
Ho-Kai Chen
only testing...
GeoGebra
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小数 的副本
柱體建築師
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
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Concept of Similarity 相似的概念
平行四邊形變奏II
三角函數with sine, cosine圖形
橢圓
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Random Experiments
Sphere
Rational Numbers
Continuity
Functions