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圖騰 DEMO
Author:
陳科旭
GeoGebra
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兩組對邊相等和有直角的四邊形
拼砌四邊形
第八周作业
畫出對稱圖形
四邉形 (四年級) 教師版
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賴桑_等差數列與級數_兩數列之比例
內切圓滾動更新
旋轉方塊
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金惠吉：光的反射与折射
Discover Topics
Polygons
Polynomial Functions
Terms
Tangent Function
Parametric Curves