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Author:
Lin Ching Chieh
GeoGebra
New Resources
第八周作业
異分母分數減法
拼砌四邊形
兩位數除以一位數（二）
球體建築師
Discover Resources
正立方體展開動畫
Torus
線段比較大小-01
正三角形
貝氏曲線 (Bezier Surface)
Discover Topics
Histogram
Statistical Characteristics
Interest Calculation
Rectangle
Trapezoid