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優良作品1
Author:
Ching-Hui Chou
GeoGebra
New Resources
【案例】2013年安徽高考15题
三位數除以一位數（一）
判斷球體
找出對稱軸
第八周作业
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阿波羅尼斯問題：與三圓相切的圓
梯形有甚麼特性？
摸似利萨如图形
test
数学涂鸦
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Trapezoid
Addition
Cosine
Tree Diagrams
Polygons