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優良作品4
Author:
Ching-Hui Chou
GeoGebra
New Resources
球體建築師
兩位數除以一位數（一）
拼砌四邊形
【案例】2018年全国1卷理科12题
兩位數加法
Discover Resources
費氏螺旋線
directed number_the age of father and son
数学几何
平移中心
直线与圆的位置关系
Discover Topics
Pyramid
Stochastic Process or Random Process
Indefinite Integral
Volume
Variance