我的镜像源是cn99的,sources.list如下:
deb http://debian.cn99.com/debian stable main contrib non-free
deb http://debian.cn99.com/debian-non-US stable/non-US main contrib non-free
deb http://debian.cn99.com/debian-security stable/updates main contrib non-free
deb-src http://debian.cn99.com/debian stable main contrib non-free
deb-src http://debian.cn99.com/debian-non-US stable/non-US main contrib non-free