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林辰洋 凹面鏡反射
Author:
s10455051
GeoGebra
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斜率的值
漂亮的摇摆曲线
讀磅
祖冲之的期望：内棋与外棋
圓的基本性質
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簡易文氏圖
數字鐘
旋轉長方形
微信公众号“sx880A8”第253期印度尼西亚国旗（Indonesia flag）
最新的解一元二次方程式方法
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Linear Programming or Linear Optimization
General Quadrilateral
Intersection
Orthocenter
Frequency Distribution