temp storage:
deb http://mirrors.ustc.edu.cn/raspbian/raspbian/ wheezy main contrib non-free
deb http://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ wheezy main contrib non-free
deb http://mirrors.neusoft.edu.cn/raspbian/raspbian wheezy main contrib non-free
deb http://raspbian.cnssuestc.org/raspbian/ wheezy main contrib non-free
#deb http://mirror.sysu.edu.cn/raspbian/ wheezy main contrib non-free
deb http://mirrors.zju.edu.cn/raspbian/raspbian/ wheezy main contrib non-free
deb http://mirrors.opencas.cn/raspbian/raspbian/ wheezy main contrib mom-free
#deb http://mirrors.cqu.edu.cn/raspbian/raspbian/ wheezy main contrib non-free
deb http://archive.mene.za.net/raspbian wheezy contrib unstable
#deb-src http://mirrors.ustc.edu.cn/raspbian/ wheezy main contrib non-free
