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一次函数k
Author:
张老师
GeoGebra
New Resources
正方形雪花图案
盈利與虧蝕
中华人民共和国国旗
活动三：应用性质
平行線的判定
Discover Resources
基本三角函數
根號n的做圖法之二
線段與圓弧所構成的封閉區域之填色問題
科學記號
[S2] a revised version of Jane’s GeoGebra file (modified by the author)
Discover Topics
Line Segment
Curve Sketching
Arithmetic
Constructions
Trapezoid