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20170421_001
Author:
sinmei5
GeoGebra
New Resources
第八周作业2
第八周作业
第八周作业1
平行線的判定
双心四边形
Discover Resources
Dividing a Trapezium
trigo ratios np2c
Locus (Segment)
congruent (ASA)
正方体展开图的副本
Discover Topics
Circle
Constructions
Ellipse
Polygons
Sphere