https://shiting.mc323.com/changge/%E5%9C%A8%E4%BA%BA%E9%97%B4%E7%9A%84%E5%B0%BD%E5%A4%B4%E8%BF%9C%E8%B5%B0%E9%AB%98%E9%A3%9E%E5%92%9A%E9%BC%93%E4%B8%B2%E7%83%A7%E6%88%91%E4%BB%AC%E4%B8%8D%E4%B8%80%E6%A0%B7%E7%9A%84%E7%88%B1%E6%B2%B3.mp3

一点都不卡啊

迅雷下载 2400K/秒

30K 吧 北方电信

延迟有点高，
网速我教育网100~300kb/s，华南阿里云下载能到4mb/s