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梯形有甚麼特性?
Author:
Anthony OR 柯志明
English version:
http://ggbtu.be/m79855
GeoGebra
New Resources
第八周作业3
第八周作业2
比較五件物件的重量
折扣
活动三:应用性质
Discover Resources
平行四邊形變奏II
task 4
過圓內C點的弦中點軌跡
角平分线的性质
九點圓
Discover Topics
Power Functions
Addition
Upper and Lower Sum or Riemann Sum
Mode
Kite