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指數1209
Author:
陳柄何
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
【案例】圆柱体内放置一个大球六个小球
Discover Resources
三角形的重心軌跡
My First GGBBook
尺规作图_课本内容
圓面積示範
Quiz on Addition and Subtraction of Directed Numbers (1)
Discover Topics
Standard Deviation
Logarithm
Parabola
Statistical Characteristics
Natural Numbers