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圓錐
Author:
Chan Pui Chuen
GeoGebra
New Resources
三角函数 的副本
异形操场
科赫雪花
比較五件物件的重量
活动三：应用性质
Discover Resources
GGBex2
公倍數與最小公倍數（L.C.M.）
內擺線觀察
對稱01
φ的影响
Discover Topics
Integral Calculus
Functions
Cone
Geometric Transformations
Surface