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ptccs2new
Author:
Cheung Wing Chuen
GeoGebra
New Resources
拼砌四邊形
兩組對邊相等的四邊形
【案例】2018年全国1卷理科12题
兩位數加法
三位數除以一位數（二）
Discover Resources
Net of a cylinder
正六面體
柯西不等式 (2)
滑桿動畫
展開圓面積 (講義版)的副本
Discover Topics
Congruence
Linear Regression
Binomial Distribution
Probability
Combinatorics