debian 7源配置

## china    
deb http://ftp.cn.debian.org/debian/ wheezy main contrib non-free    
deb-src http://ftp.cn.debian.org/debian/ wheezy main contrib non-free    

deb http://ftp.cn.debian.org/debian/ wheezy-proposed-updates main contrib non-free    
deb-src http://ftp.cn.debian.org/debian/ wheezy-proposed-updates main contrib non-free    

deb http://ftp.cn.debian.org/debian/ wheezy-backports main contrib non-free    
deb-src http://ftp.cn.debian.org/debian/ wheezy-backports main contrib non-free    

# debian security updates    
deb http://security.debian.org/ wheezy/updates main contrib non-free    
deb-src http://security.debian.org/ wheezy/updates main contrib non-free    

# multimedia    
deb http://deb-multimedia.org wheezy main non-free