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隔板法解组合问题
Author:
赵林
GeoGebra
New Resources
找出對稱軸
三位數除以一位數（一）
異分母分數減法
兩位數加法
【案例】圆柱体内放置一个大球六个小球
Discover Resources
waaachen
hiughgggfgfhfhdiegfgbagdefhjkghdf
圓錐截痕
圖形的繪製(8)---圖形的搬移(畢氏定理)
多邊形的面積
Discover Topics
Natural Numbers
Expected Value
Set Theory
Volume
Mathematics