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選擇合適的「中間人」
Author:
phcheng
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
圓的切線方程
三位數除以一位數（二）
空间中两直线的位置关系
垂直線的斜率
讀磅
Discover Resources
七彩之珠
圓&五邊形
正弦與餘弦值的大小關係
旋轉指令
畢氏定理
Discover Topics
Conditional Probability
LCM and GCD
Special Points
Equations
Fractions