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二次函数
Author:
jinwen
GeoGebra
New Resources
平行線的判定
双心四边形
第三周作业效果演示
常见四边形是否是双心四边形
撒针估算面积实验
Discover Resources
滾出直線之2
Sequence指令練習(二維2)
函數愛心
三角形的簡介
向量與坐標
Discover Topics
Probability
Angles
Arithmetic Operations
Coordinates
Translation