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Author:
chen mingchuan
GeoGebra
New Resources
百分數及其應用
科赫雪花
中华人民共和国国旗
第八周作业2
异形操场
Discover Resources
拋物線
GeoGebra使用指南
三角函數-sin
外心(劉虹圻 高二三26)
認識梯形的特徵
Discover Topics
Cube
Differential Equation
Statistics
Sine
Hypothesis Testing