以下是我的 /etc/apt/sources.list ，综合了Ubuntu和LD的源，用起来一点问题没有，韦诺也能安装：

deb http://mirrors.ustc.edu.cn/ubuntu/ precise main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/ubuntu precise-security main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/ubuntu precise-updates main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/ubuntu precise-proposed main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/deepin precise main non-free
deb http://mirrors.ustc.edu.cn/deepin precise-updates main non-free
deb http://archive.canonical.com/ precise partner
deb http://extras.ubuntu.com/ubuntu precise main