Chrome，
QQ浏览器
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![[中考数学]直击切线的本质：判定＆性质](//imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F2d4d1f1cbebb63c2e73263de3851ba5a0147f80b.jpg%40672w_378h_1c_%21web-search-common-cover)
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![中考必备，圆的切线[初三数学11]](//imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F30869de351bbfedf44b9e9829cf5a6cc4f4032e1.jpg%40672w_378h_1c_%21web-search-common-cover)
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播放：10 时间：2024-06-21简介： -
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![【获奖】冀教版初中数学九下《29.4切线长定理》[张老师]【市一等奖】优质课公开课教学视频](//imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2F44f517e18570ecf2527e6c3bda798cecd4715184.jpg%40672w_378h_1c_%21web-search-common-cover)
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![[中考数学]直击切线的本质：判定＆性质](http://imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F2d4d1f1cbebb63c2e73263de3851ba5a0147f80b.jpg%40672w_378h_1c_%21web-search-common-cover)
![中考必备，圆的切线[初三数学11]](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F30869de351bbfedf44b9e9829cf5a6cc4f4032e1.jpg%40672w_378h_1c_%21web-search-common-cover)
![【获奖】冀教版初中数学九下《29.4切线长定理》[张老师]【市一等奖】优质课公开课教学视频](http://imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2F44f517e18570ecf2527e6c3bda798cecd4715184.jpg%40672w_378h_1c_%21web-search-common-cover)
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