新浪科技讯 北京时间7月29日晚间消息，美国皮尤研究中心(Pew Research Center)日前发布报告称，当前美国15%的成年人尚未使用互联网，约为4700万人。 皮尤研究中心2000年开始研究互联网对社会的影响。当时，48%的美国成年人尚未使用互联网。 2013年，皮尤...
sina science and technology news Beijing time on July 29 evening news, the Pew Research Center (Pew Research Center recently released a report said the current 15 percent of American adults has not yet been used the Internet, about 47 million people. Pugh research center in 2000 began to study the impact of the Internet on the community. At that time, 48% of American adults have not yet used the internet. 2013, Pugh...
