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2019.杭州
Author:
g 王
GeoGebra
New Resources
斐波那契螺旋弧线(表格法-可动态调节)
椭圆内切圆链
龙形曲线-分形龙2
中华人民共和国国旗
折扣
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Key stage 1
選修數學
【折纸】A4纸折四面体
两角差的正弦公式证明2
三角形内角和的折叠法演示
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Translation
Functions
Equilateral Triangles
Congruence
Orthocenter