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奠基
Author:
tan90
奠基
GeoGebra
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異分母分數減法
兩位數加法
【案例】2013年安徽高考15题
兩組對邊相等和有直角的四邊形
球体的体积推导(优化版)
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解方程式
labyrinth
同側AP-BP最大值
四邊形ADFE的面積是多少?
河內塔 3D (Tower of Hanoi 3D)
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Equations
Calculus
Isosceles Triangles
Arithmetic
Conic Sections