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反射圆,反射线
Author:
getfile
GeoGebra
New Resources
平行線的判定
正方形雪花图案
盈利與虧蝕
折扣
第八周作业2
Discover Resources
緯度、日照、影子長。
翰林B4課p227_9
翰林B4習p81_9
面積的認識4
國旗上傳測試
Discover Topics
Fractions
Vectors 2D (Two-Dimensional)
Complex Numbers
Sine
Isosceles Triangles