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test03繪本用
Author:
趙偉晉
GeoGebra
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拼砌四邊形
兩組對邊相等的四邊形
三位數除以一位數（二）
四邊形的特性
兩組對邊相等和有直角的四邊形
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資料點 x1, x2, ..., xn
PMC 2016-17
封閉區域填色
star1
我不知道我在幹嘛
Discover Topics
Sphere
Calculus
Root
Circle
Optimization Problems