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長方形
Author:
Yip Chi Wai
GeoGebra
New Resources
兩位數加法
兩位數除以一位數（二）
判斷球體
找出對稱軸
三位數除以一位數（二）
Discover Resources
Vector in R2
拿破侖定理(內拿破侖)證明三
題三
心臟線
分物活動 1
Discover Topics
Continuity
Algebra
Vectors 2D (Two-Dimensional)
Distributions
Frequency Distribution