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串珠(大小不同)
Author:
施奕瑄
GeoGebra
New Resources
直角坐標平面上的旋轉變換
兩位數加法
拼砌四邊形
【案例】2013年安徽高考15题
兩位數除以一位數（一）
Discover Resources
畢氏定理(五移動)
中學(高中)
Number of solutions of two straight lines
指数函数定积分的动态演示.许兴华数学
动圆与两圆外切与内切(1)
Discover Topics
Linear Programming or Linear Optimization
Confidence Interval
Sequences and Series
Arithmetic Operations
Variance