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2019.10.10
Author:
johnmayhk
GeoGebra
New Resources
四邊形的特性
判斷球體
兩組對邊相等的四邊形
Earth with coastline
Nested spiral octagon
Discover Resources
量度身高
(004)80201辛宇婕
再作万年历单晨
「相似三角形」任务3的副本
割圆术估计圆周率（刘徽）
Discover Topics
Dilation
Integral Calculus
Calculus
Complex Numbers
Diagrams