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一个桶八个球
Author:
孟宝兴
GeoGebra
New Resources
兩組對邊相等的四邊形
兩位數除以一位數（一）
【案例】2013年安徽高考15题
找出對稱軸
球體建築師
Discover Resources
題3
路徑二動畫
周界和面積
Progressive Formula
Multiplication of Polynomials(多項式的乘法)
Discover Topics
Optimization Problems
Ratios
Rational Numbers
Arithmetic Mean
Root