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把心獻給妳
Author:
Wu Xiao-Ren
GeoGebra
New Resources
柱體建築師
三位數除以一位數（一）
畫出對稱圖形
【案例】2018年全国1卷理科12题
兩組對邊相等的四邊形
Discover Resources
Perigal's Dissection
斯坦納-雷米歐司(Steiner-Lehmus)定理證明一
circle
梯形堆垛
宇宙模型
Discover Topics
Functions
Arithmetic Mean
Differential Calculus
Angles
Geometric Transformations