deb http://ubuntu.cn99.com/ubuntu/ dapper main restricted universe multiverse deb http://ubuntu.cn99.com/ubuntu/ dapper-updates main restricted universe multiverse deb http://ubuntu.cn99.com/ubuntu/ dapper-backports main restricted universe multiverse deb http://ubuntu.cn99.com/ubuntu/ dapper-security main restricted universe multiverse deb http://ubuntu.cn99.com/ubuntu-cn/ dapper main restricted universe multiverse
