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高中数学老师。吴永江<br>[手写解题](<a href="https://www.jianshu.com/nb/29306740" rel="nofollow" target="_blank">https://www.jianshu.com/nb/29306740</a>)<br>[geogebra](<a href="https://www.jianshu.com/nb/35180997" rel="nofollow" target="_blank">https://www.jianshu.com/nb/35180997</a>)
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