Chrome，
QQ浏览器
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播放：6 时间：2025-05-10简介： -
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播放：6 时间：2025-09-02简介： -
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![【获奖】苏教版初中九年级数学上册2.1 圆-郑老师]【市一等奖】优质课优质课公开课教学视频](//imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2Fa64fff9b190e6605804a6a328309b917dfed6f0c.jpg%40672w_378h_1c_%21web-search-common-cover)
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![【获奖】苏教版初中九年级数学上册2.1 圆-郑老师]【市一等奖】优质课优质课公开课教学视频](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2Fa64fff9b190e6605804a6a328309b917dfed6f0c.jpg%40672w_378h_1c_%21web-search-common-cover)
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