This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. As long as there have been mice, people have sought a better mousetrap. And since we figured out that bacteria can make us sick, weve searched for better

发表于:2018-12-24 / 阅读(57) / 评论(0) 分类 Scientific American(十)月

1. Stocks fell sharply Friday. Analysts blamed a series of depressing economic and earnings reports and high oil prices. The major stock indexes fell more than 2%. The Dow closed down nearly 316 points. 2. Las Vegas police say a man is in critical c

发表于:2019-01-11 / 阅读(106) / 评论(0) 分类 美联社新闻一分钟2008年(三)月

1. Outraging Gaza over the Israeli bombing of the United Nation's school. 10 people were killed when a bomb hit the structure that were sheltering 3,000 displacing Palestinians, the U.S state department calling the attack disgraceful, saying the scho

发表于:2019-01-11 / 阅读(85) / 评论(0) 分类 美联社新闻一分钟2014(八)月

Gorbachev's Foreign Policy Changed Map of Europe This month marks the 20th anniversary of the collapse of the Soviet Union. It was the foreign policy of Mikhail Gorbachev, the last Soviet leader, that contributed to the demise of the Soviet Union. Mi

发表于:2019-01-13 / 阅读(68) / 评论(0) 分类 VOA标准英语2011年(十二月)

1.An army scientist committed suicide before federal prosecutors could charge him with mailing anthrax-laced letters after the 9/11 attacks. Authorities say that the letters may have been part of a warped plan by Bruce Ivins to test a vaccine for th

发表于:2019-02-11 / 阅读(112) / 评论(0) 分类 美联社新闻一分钟2008年(八)月

1.Victory appears near for the new president of Russia Dmitry Medvedev, hand-picked by Vladimir Putin. The vote comes after a tightly controlled campaign and months of political maneuvering. 2.The FBI searches a house in Utah linked to the discovery

发表于:2019-02-11 / 阅读(90) / 评论(0) 分类 美联社新闻一分钟2008年(三)月