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高美濕地風車2
Author:
李春培
高美濕地風車2
GeoGebra
New Resources
兩位數加法
柱體建築師
找出對稱軸
異分母分數減法
判斷球體
Discover Resources
图形
過圓內c點的弦中點軌跡
平移法（二）
線的面化
拼砌四邊形
Discover Topics
Addition
Matrices
Symmetry
Means
Trigonometric Functions