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Author:
谢黎
GeoGebra
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圓的切線方程
垂直線的斜率
圓周公式的應用
祖冲之的期望：内棋与外棋
【案例】2013年安徽高考15题
Discover Resources
正方體的反射對稱1
GGB5_3D物件
優良作品5(盈彤)
異分母的分數加減
斯坦納-雷米歐司(Steiner-Lehmus)定理推廣
密鋪4
Discover Topics
Indefinite Integral
Natural Numbers
Orthocenter
Function Graph
Median Line