北六数上《百分数的应用》微课精讲

视频精讲https://v.qq.com/txp/iframe/player.html?vid=g0350ylkkqp&width=500&height=375&auto=0

https://v.qq.com/txp/iframe/player.html?vid=l0170lhjbam&width=500&height=375&auto=0https://v.qq.com/txp/iframe/player.html?vid=i0171xuvylc&width=500&height=375&auto=0

复制网址 http://t.cn/RC712m0 打开下载配套的课件教案

点击左下阅读原文看全部视频