Chrome，
QQ浏览器
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![『获奖』青岛版小学数学六年级上册《4.1（比的认识）》[陈老师]【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%2F6022a7e36eb4f7fb27b9c98c41b3d1ae70898f6d.jpg%40672w_378h_1c_%21web-search-common-cover)
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![[415集]小学1-6年级上下学期数学同步动画高清完整无水印版[人教版,北师版，冀教版，苏教版，青岛版]](//imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F2b6232730aeb010b86f2a25ace4299c0eecc959c.png%40672w_378h_1c_%21web-search-common-cover)
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播放：17 时间：2024-06-20简介： -
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![『获奖』青岛版小学数学六年级上册《4.1（比的认识）》[陈老师]【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%2F6022a7e36eb4f7fb27b9c98c41b3d1ae70898f6d.jpg%40672w_378h_1c_%21web-search-common-cover)
![[415集]小学1-6年级上下学期数学同步动画高清完整无水印版[人教版,北师版，冀教版，苏教版，青岛版]](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F2b6232730aeb010b86f2a25ace4299c0eecc959c.png%40672w_378h_1c_%21web-search-common-cover)
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