按右键,按菜单栏都会这样。粘贴的这个。。。
deb mirrors.tuna.tsinghua.edu.cn/debian/ jessie main contrib non-free
deb-src mirrors.tuna.tsinghua.edu.cn/debian/ jessie main contrib non-free
deb mirrors.tuna.tsinghua.edu.cn/debian-security jessie/updates main contrib non-free
deb-src mirrors.tuna.tsinghua.edu.cn/debian-security jessie/updates main contrib non-free
deb mirrors.tuna.tsinghua.edu.cn/debian/ jessie-updates main contrib non-free
deb-src mirrors.tuna.tsinghua.edu.cn/debian/ jessie-updates main contrib non-free