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折線1
Author:
chen mingchuan
GeoGebra
New Resources
球體建築師
柱體建築師
兩位數除以一位數（一）
四邉形 (四年級) 教師版
算柱 (兩位數)
Discover Resources
整數或分數÷分數_ 工作紙（一）_題2a
題 1
雙橢
外接圓的心
探索“三等分点连线围成的小三角形”的特点
Discover Topics
Congruence
Curve Sketching
Geometric Distribution
Geometric Mean
Area