Supplement

Robots deployed in search missions

作者：AGENCIES

NEW YORK - More than a dozen experimental robots have been deployed in search and rescue missions in the rubble of the World Trade Center (WTC), a report by high tech news site Wired.com said las...

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。