【简答题】A private group of scientists has announced plans to make an exact copy of a human being. An American member of the team says he and the others will soon begin a serious effort to clone humans. Panos...
【简答题】仔细的再读文章,回答最下面的问题,注意昨天的错误不要再犯!可回头再看昨天题目错在哪了! A Web of Lies The rapid growth of the Internet over recent years has caused problems for parents and teachers. Parents worry about which sites their childre...