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隔板法解组合问题
Author:
赵林
GeoGebra
New Resources
判斷球體
兩位數除以一位數（二）
【案例】圆柱体内放置一个大球六个小球
第八周作业
兩位數除以一位數（一）
Discover Resources
認識正方形
對數的遞增或遞減(底數小於1)
Quiz on Special Lines in Triangles 三角形內的特殊線：測驗
平面幾何新路
a Geogebra file created by the first pre-service teacher
Discover Topics
Vectors 2D (Two-Dimensional)
Rotation
Real Numbers
Trapezoid
Angles