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2 years ago · 3bd3fbe93a
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--- a/TangDou/Geogebra/听课笔记.md
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 #### 1.1 用工具和属性绘制简单图形
 ![](https://dsideal.obs.cn-north-1.myhuaweicloud.com/HuangHai/BlogImages/202401311531627.png)
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+**[$GeoGebra$如何擦除踪迹——移动视图、放大、设置活动视图](https://zhuanlan.zhihu.com/p/298051355)**
 $CTRL+F$可以擦除轨迹