This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Understanding all the genes and molecules involved in human disease is quite a challenge. Thats why scientists study model organisms, like flies and worm

发表于:2018-12-24 / 阅读(55) / 评论(0) 分类 Scientific American(三)月

ECONOMICS REPORT - Protecting an Investment With Stock OptionsBy Mario Ritter Broadcast: Friday, April 28, 2006 I'm Steve Ember with the VOA Special English Economics Report. Stock options are a way t

发表于:2019-01-02 / 阅读(23) / 评论(0) 分类 2006年慢速英语(四)月

By Mario Ritter Broadcast: November 7, 2003 This is Bob Doughty with the VOA Special English Economics Report. The largest 1)stock market in the world is the New York Stock Exchange. It is also the ol

发表于:2019-01-02 / 阅读(68) / 评论(0) 分类 VOA2003(下)-农业与经济

1. Toyota has announced it will recall more than 400,000 Prius and other hybrid vehicles around the globe to fix brake problems. This recall is the latest in a string of embarrassing safety problems at the world's largest automaker. This recall invol

发表于:2019-01-11 / 阅读(111) / 评论(0) 分类 美联社新闻一分钟2010(二月)

TOKYO, Jan. 12 (Xinhua) -- The overall level of bank lending(银行贷款) in Japan fell 2.1 percent from a year earlier in December, marking the 13th straight month of decline, the Bank of Japan (BOJ) said Wednesday. According to the central bank, t

发表于:2019-02-18 / 阅读(109) / 评论(0) 分类 英语新闻

Wall Street analysts searching for reasons for the U.S. stock market's sharp swings in early August point to high unemployment, the European debt crisis and other basic economic problems. But some also suspect what is known as high-frequency trading,

发表于:2019-02-25 / 阅读(118) / 评论(0) 分类 英语新闻