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凸透镜成像
Author:
软 微
GeoGebra
New Resources
找出對稱軸
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
三位數除以一位數（一）
GeoGebra笔记功能体验课件
Discover Resources
繪製一次函數圖形(隨機出題)
vector addition and subtraction
活動工作紙LEVEL02
對稱01
走进图形世界
Discover Topics
Exponent
Differential Calculus
Bar Chart or Bar Graph
Inequalities
Triangles