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盾牌(小動畫)
Author:
Lin Lu-Yang
GeoGebra
New Resources
四邉形 (四年級) 教師版
判斷球體
找出對稱軸
三位數除以一位數（一）
兩組對邊相等的四邊形
Discover Resources
內次擺線
P2 Animated Clock
正五角椎
(003)80102史巧薇
相似形的應用
Discover Topics
Exponential Functions
Surface
Triangles
Trapezoid
Perimeter