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積分求面積
Author:
dunst kang
GeoGebra
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找出對稱軸
GeoGebra笔记功能体验课件
【案例】2013年安徽高考15题
柱體建築師
四邉形 (四年級) 教師版
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mario
Comparing fractions using number lines and rectangles
Combined Quiz on Bearings 方位：合併測驗
固定三角形的條件−題1
对称拼图游戏
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Circle
Straight Lines
Equilateral Triangles
Statistical Characteristics
Trapezoid