北三数上《里程表(二)》微课精讲

https://v.qq.com/txp/iframe/player.html?vid=i0336rzjjhs&width=500&height=375&auto=0

https://v.qq.com/txp/iframe/player.html?vid=s039278qp0b&width=500&height=375&auto=0

我想把这个视频转到课堂给学生看https://v.qq.com/txp/iframe/player.html?vid=c0392bieoxf&width=500&height=375&auto=0

复制网址 www.1ydt.com 打开下载配套的课件教案

点击左下阅读原文看全部视频