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BkD_act15_05c
Author:
Luk Sir
GeoGebra
New Resources
找出對稱軸
三位數除以一位數（一）
畫出對稱圖形
算柱 (兩位數)
第八周作业
Discover Resources
香港貨幣
Orthocentre
一元二次方程式-應用問題(兩圓相切-2)
Physics
桃子Peach
Discover Topics
Secant Line or Secant
Sine
Standard Deviation
Integers
Geometric Transformations