This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? A new development in malaria: Plasmodium vivax, the worlds most common malaria parasite, now infects people previously considered to be resistant. Peter Zimmerman from Cas

发表于:2018-12-24 / 阅读(36) / 评论(0) 分类 Scientific American(二)月

Xerox Corporation is the worlds leading document management company. The company website says Xerox offers true end-to-end solutions, from back-office support to the printed page. It was founded in 1906 as the Haloid Photographic Company, which manuf

发表于:2019-01-01 / 阅读(33) / 评论(0) 分类 各大品牌英文介绍

College Makes Human Rights a Major Issue For years, Southern Methodist University Professor Rick Halperin pushed for a human rights degree program. The former chairman of Amnesty International USA taught his first human rights on campus 21 years ago,

发表于:2019-01-13 / 阅读(44) / 评论(0) 分类 VOA标准英语2012年(一月)

Getting malaria stinks. Literally. According to a new study, malaria victims give off odors that attracts mosquitoes. And the insects that feed on the infected sufferer are then more likely to spread the disease. The work appears in the Proceedings o

发表于:2019-01-20 / 阅读(37) / 评论(0) 分类 2014年Scientific American(七)月

EDUCATION REPORT - Learning Disabilities, Part 4: Dyspraxia By Nancy Steinbach Broadcast: Thursday, February 26, 2004 This is Steve Ember with the VOA Special English Education Report. People who have

发表于:2019-01-30 / 阅读(90) / 评论(0) 分类 教育与新闻

New Malaria Strain Difficult to Treat Declining malaria deaths in Africa and progress toward an effective malaria vaccine are raising hopes the disease will soon be eradicated worldwide. But researchers at the annual meeting of the American Society o

发表于:2019-02-12 / 阅读(43) / 评论(0) 分类 VOA标准英语2011年(十二月)