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符成岗
Author:
符成岗
GeoGebra
New Resources
異分母分數減法
【案例】圆柱体内放置一个大球六个小球
柱體建築師
錐體建築師
兩組對邊相等和有直角的四邊形
Discover Resources
動畫
三次函數圖形變化
包絡線
餘弦函數圖形
擲兩個硬幣的機率分布
Discover Topics
Perimeter
Combinatorics
Congruence
Rectangle
Mathematics