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帕斯卡定理
Author:
Sol Liu
GeoGebra
New Resources
撒针估算面积实验
盈利與虧蝕
圓的基本性質
活动三：应用性质
龙形曲线-分形龙
Discover Resources
二次函數圖形(1)
P53_3c
勝者即正義
襯墊
因數（1至48）
Discover Topics
Statistical Characteristics
Circle
Arithmetic
Subtraction
Straight Lines