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ptccs2new4
Author:
Cheung Wing Chuen
GeoGebra
New Resources
兩位數除以一位數（一）
三位數除以一位數（二）
柱體建築師
四邊形的特性
GeoGebra笔记功能体验课件
Discover Resources
Contour Lines 等高線
任何三角形內角和180度(五上數翰４－２)
切割正八面體
x^3+y^3-3xy
切線性質A
Discover Topics
Centroid or Barycenter
Differential Calculus
Normal Distribution
Correlation
Mathematics