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相同圖形的拼砌（有兩組平行線的四邊形）
Author:
ho ting chit
GeoGebra
New Resources
算柱 (兩位數)
找出對稱軸
兩位數除以一位數（一）
錐體建築師
四邉形 (四年級) 教師版
Discover Resources
偏心的農夫?
Copy of 分數比較
练习
比一比看谁小
CBTL_science_rcpet
Discover Topics
Square
Prism
Angles
Frequency Distribution
Ratios