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根據百分率找數量（一）: 例3的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
畫出對稱圖形
Earth with coastline
長方體平面投影 (Codex版)
找出對稱軸
近似值：有效數字
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三视图试卷讲评
Copy of 茵01
題四
凸型表面積計算（平移部分面、角度轉換法）
母子性質-1（動畫）
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Mode
Exponential Functions
Line Segment
Sphere
Square