Chrome，
QQ浏览器
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![苏教版八年级数学上册6.5 一次函数图二元一次方程组[张老师]【市一等奖】_优质课公开课教学视频](//imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F72d76f9bec40592dac63edef2a1e772f12940dd0.jpg%40672w_378h_1c_%21web-search-common-cover)
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播放：0 时间：2025-09-15简介： -
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![北师大数学八上《4.2 一次函数与正比例函数》[唐老师]【市一等奖】优质课](//imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2F8b0ea7c9f72e51175fcaaca0c3edfaa12852d188.jpg%40672w_378h_1c_%21web-search-common-cover)
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![苏教版八年级数学上册6.5 一次函数图二元一次方程组[张老师]【市一等奖】_优质课公开课教学视频](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F72d76f9bec40592dac63edef2a1e772f12940dd0.jpg%40672w_378h_1c_%21web-search-common-cover)
![北师大数学八上《4.2 一次函数与正比例函数》[唐老师]【市一等奖】优质课](http://imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2F8b0ea7c9f72e51175fcaaca0c3edfaa12852d188.jpg%40672w_378h_1c_%21web-search-common-cover)
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