2013托福考试备考:托福阅读必备背景资料(十三)
Controversial researcher Peter Duesberg has been cleared of wrongdoing following formal complaints made after he and others published a paper arguing that there is "as yet no proof that HIV causes AIDS." Duesberg, who is well known for denying the link between HIV and AIDS, escaped censure from the University of California, Berkeley, after an investigation upheld his academic freedom and found no clear evidence that he broke faculty rules in publishing the paper. A letter dated May 28 from Sheldon Zedeck, vice-provost for academic affai... [ 查看全文 ]2013托福考试备考:托福阅读必备背景资料(十三)的相关文章