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Author:
龚洪萍
GeoGebra
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拼砌四邊形
三位數除以一位數（一）
判斷球體
【案例】圆柱体内放置一个大球六个小球
【案例】2018年全国1卷理科12题
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優良作品4
TRIANGLE
對稱圖形
數學電腦繪圖與解題
圆锥曲线
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Rectangle
Curve Sketching
Function Graph
Scalene Triangles
Pythagoras or Pythagorean Theorem