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Author:
军云
GeoGebra
New Resources
椭圆内切圆链
盈利與虧蝕
GeoGebra数学资源(4-8年级)
百分數及其應用
镂空正方体案例对比
Discover Resources
T4 Geobra
My GGB BOOK
F1Ch8 Translation basic
拋物線2-焦點法
圓-符號核能
Discover Topics
Parabola
Limits
Curve Sketching
LCM and GCD
Pyramid