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正方變十字
Author:
李春培
正方變十字
GeoGebra
New Resources
双心四边形
直線的斜率：水平變化 & 鉛垂變化
折扣
异形操场
活动三：应用性质
Discover Resources
交流电的模拟
Q3-11
密鋪7
運用量度器比較角的大小
拋物線2--焦點法
Discover Topics
Histogram
Logarithmic Functions
Congruence
Functions
Geometric Distribution