New horizon

Net traffic could jam Web by 2011

作者：21ST

A RECENT report by Cisco Systems, the big network hardware producer, found that digital traffic on the global network is growing dramatically. The increase stems mainly from video clips and online...

点击阅读全文

对本期电子报订户、有效期内的VIP教师会员和本学期二十一世纪英文报尊享卡用户，我们开放所有内容：
如果您拥有以上权限，请点这里登录；
订阅电子报，请点这里；
激活VIP教师卡，请点这里；
激活21英语尊享卡，请点这里。