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HKCEE 2009 Q17
Author:
tkyggb
GeoGebra
New Resources
算柱 (兩位數)
長方體平面投影 (Codex版)
小数 的副本
近似值：有效數字
Earth with coastline
Discover Resources
兩圓動點中點軌跡
畢式定理 (12)的副本
Copy of 分數比較
绕圆旋转004
点、线、角