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BkD_act15_03c
Author:
Luk Sir
GeoGebra
New Resources
兩位數加法
算柱 (兩位數)
兩組對邊相等的四邊形
球體建築師
三位數除以一位數（一）
Discover Resources
圓周公式應用題1
MFS: Rebound 1
區塊斜線教學
雜思
橢圓代數性質,光學性質,生活應用
Discover Topics
Conic Sections
Natural Numbers
Plane Figures or Shapes
Piecewise Functions
Centroid or Barycenter