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ptccs2new
Author:
Cheung Wing Chuen
GeoGebra
New Resources
【案例】2013年安徽高考15题
判斷球體
拼砌四邊形
兩組對邊相等的四邊形
三位數除以一位數（二）
Discover Resources
Trapezium fixed height
排列組合
扇形面積公式3
二次函數
Similar Figures (QMSS)
一次函数
Discover Topics
Combinatorics
Vectors 3D (Three-Dimensional)
Probability
Cone
Conditional Probability