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Author:
蔡承原
GeoGebra
New Resources
三位數除以一位數（一）
球体的体积推导（优化版）
圓周公式的應用
【案例】2018年全国1卷理科12题
漂亮的摇摆曲线
Discover Resources
多邊形的切割與拼砌
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Dynamic HSV Color Platte
點的堆墮
圆与直线的位置关系
Discover Topics
Fractions
Dilation
Statistical Characteristics
Orthocenter
Combinatorics