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1987全国理10
Author:
常振虎
GeoGebra
New Resources
判斷球體
異分母分數減法
兩位數加法
錐體建築師
兩位數除以一位數（二）
Discover Resources
選擇合適的「中間人」
Copy of 劉徽的「割圓術」
正三角形繞正方形旋轉
巧算周界
橢圓1--四圓心近似法
Discover Topics
Power Functions
Median Line
Means
Linear Regression
Prism