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2018全国1卷理18
Author:
jjx01
Topic:
Solids or 3D Shapes
GeoGebra
New Resources
平行線的判定
撒针估算面积实验
斐波那契螺旋弧线（表格法）
第八周作业
第八周作业3
Discover Resources
拋物線的光學性質
斜射光三角量測
勾股定理（几何原本）的副本
我的第一个GGB绘本
马鞍面旋转
Discover Topics
Polygons
Ellipse
Arithmetic
Planes
Sequences and Series