Scientists Create Method to Test Food and Drugs for Purity Millions of people in developing countries have to be on guard against contaminated food and medicine. Some products could be harmful -- even deadly. In Nigeria, brake fluid was found in a pr

发表于:2018-12-07 / 阅读(41) / 评论(0) 分类 2017年VOA慢速英语(三)月

By David McAlary Washington 11 May 2006 Scientists have developed a cheap, rapid test to determine who has trachoma, the leading infectious cause of blindness in poor countries. The researchers say th

发表于:2019-01-04 / 阅读(107) / 评论(0) 分类 2006年VOA标准英语(五月)

英语作文的六大结尾方式和例句

发表于:2019-01-17 / 阅读(39) / 评论(0) 分类 英语作文

HEALTH REPORT - New Method to Find Alzheimer's Disease By Jerilyn Watson Broadcast: Wednesday, February 04, 2004 This is the VOA Special English Health Report. A computer picture of a brain affected b

发表于:2019-01-30 / 阅读(64) / 评论(0) 分类 健康与经济

By Jessica Berman Washington 12 October 2006 Researchers have developed a new tuberculosis test that makes a diagnosis possible in a fraction of the time it can take using other methods. Experts say the test would be especially useful in the develop

发表于:2019-01-31 / 阅读(99) / 评论(0) 分类 2006年VOA标准英语(十月)

An independent panel of U.S. health experts is recommending that all Americans between the ages of 15 and 65 be routinely screened for HIV, the virus that causes AIDS. The HIV test would not be mandatory. But experts hope more widespread testing migh

发表于:2019-02-18 / 阅读(48) / 评论(0) 分类 英语新闻