Lesson 68 Persistent 纠缠不休 First listen and then answer the question. 听录音,然后回答以下问题。 Why did Elizabeth tell Nigel that she was going to the dentist? I crossed the stree

发表于:2018-11-28 / 阅读(282) / 评论(0) 分类 新概念英语第二册

SCIENCE IN THE NEWS - Killer Virus Brought Back From the Past, With the Hope to Avoid a New One By Cynthia Kirk and Caty Weaver Broadcast: Tuesday, October 18, 2005 (MUSIC) VOICE ONE: This is SCIENCE

发表于:2019-01-02 / 阅读(59) / 评论(0) 分类 科技之光

by Jill Moss Broadcast: July 23, 2003 This is Bill White with the VOA Special English Health Report. A medical company in Australia, PanBio, has developed a new test for West Nile 1)virus. The test ex

发表于:2019-01-09 / 阅读(73) / 评论(0) 分类 VOA2003(下)-环境与健康

CANBERRA, Sept. 6 (Xinhua) -- A rare virus that can be contracted by humans has killed a large number of Victorian pigeons after being detected in the Australian state for the first time, Agriculture Department confirmed on Tuesday. According to the

发表于:2019-01-09 / 阅读(68) / 评论(0) 分类 英语新闻

Scientists Seek HIV Vaccine Using Monkey Model Traditional vaccine methods have been unsuccessful in preventing infection by HIV, the virus that causes AIDS. New techniques are being studied to boost antibodies or other parts of the immune system. Bu

发表于:2019-01-13 / 阅读(35) / 评论(0) 分类 VOA标准英语2012年(九月)

HOUSTON, Dec. 18 (Xinhua) -- The U.S. Coast Guard said on Tuesday that underwater inspections at the site of BP's 2010 rig explosion have failed to identify the sources of a persistent sheen on the surface of the Gulf of Mexico. Meanwhile, it said th

发表于:2019-02-18 / 阅读(38) / 评论(0) 分类 英语新闻