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0627跑馬燈
Author:
Lin ying-hung
GeoGebra
New Resources
球體建築師
兩組對邊相等和有直角的四邊形
異分母分數減法
拼砌四邊形
兩位數除以一位數（一）
Discover Resources
複雜的解法
最小周長
學習活動七頂點法
用平面截圆锥
活工(二)Q3
Discover Topics
Cylinder
Trigonometric Functions
Translation
Root
Rectangle