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圆内割线变切线1
Author:
zhaos2018
GeoGebra
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球体的截面
科赫雪花
直線的斜率:水平變化 & 鉛垂變化
盈利與虧蝕
龙形曲线-分形龙2
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林書豪加油
擴分和約分
[工具箱] 標示長度
圓繞圓內外
黄冈中考16题(扇形滚动)
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Definite Integral
Orthocenter
Symmetry
Quadratic Functions
Linear Equations