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钟表制作成功啦
Author:
辛贺华
GeoGebra
New Resources
直角坐標平面上的旋轉變換
錐體建築師
第八周作业
算柱 (兩位數)
兩位數加法
Discover Resources
正方体展开图的副本
广义三角函数的化简(诱导公式)的副本
S3 Inequality
Transformation Golf 1-18 (Working)
GeoGebra数学资源（4-8年级）
Discover Topics
Line Segment
Tree Diagrams
Variance
Multiplication
Symmetry