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軸對稱
Author:
spkwan
Topic:
Symmetry
GeoGebra
New Resources
第三周作业效果演示
第八周作业1
活动三:应用性质
撒针估算面积实验
龙形曲线-分形龙2
Discover Resources
七巧板奔人
test
畢氏定理證明
平面向量
谢尔宾斯基三角形
Discover Topics
Vectors
Rectangle
Straight Lines
Pythagoras or Pythagorean Theorem
Addition