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S7G1 模拟光的折射
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学用数学
GeoGebra
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漂亮的摇摆曲线
祖冲之的期望：内棋与外棋
多邊形的面積
圓周公式的應用
圓的切線方程
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test
中垂線
sweet sugar
滑桿動畫示範-3(畢氏定理)
碎形六邊形的副本
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Histogram
Hypothesis Testing
Unit Circle
Trigonometry
Diagrams