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優良作品3(祥恩)
Author:
Ching-Hui Chou
GeoGebra
New Resources
找出對稱軸
畫出對稱圖形
sanjiaohanshu
長方體平面投影 (Codex版)
美國國旗 (Codex 版)
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小二、小三_時間（教師版）
國旗
第14題
放射狀圖形(1)
小六 圓周
Discover Topics
Arithmetic Mean
Histogram
Median Line
Root
Similar Triangles