单词：trigonal trisotetrahedron
单词：trigonal trisotetrahedron 相关文章
This is Scientific Americans 60-Second Science. Im Karen Hopkin, this will just take a minute. Anyone whos ever cut up an onion knows that some smells can actually be painful. Now, researchers from Baltimore and Denver are closer to understanding why
Scientific American(三)月
BBC Learning English Weekender Carbon Neutral Al Gore Callum:Hello, I'm Callum Robertson and this is Weekender. Al Gore was the vice president of the United States under Bill Clinton from 1993 to 2001. He very nearly became the President in a contro
Weekender
By June Soh Washington, DC 18 April 2006 watch DC Divas report DC Divas women football team in action American football has long been a man's sport. But there are women football players who want to sh
2006年VOA标准英语（四月）
Failure of Syria Talks Signal Conflict May Be Long Struggle As senior U.S. and Russian negotiators - along with the United Nations peace envoy - again failed to find a breakthrough in Syria talks on Friday, analysts say a solution could be a long tim
VOA标准英语2013年(一月)
Iraq Struggles To Create Jobs and Wealth Iraq has some of the largest oil reserves in the world, but its economy suffers from high unemployment, war damage and the lingering effects of past international sanctions. Crumbling infrastructure and politi
VOA标准英语2011年(十二月)
Indonesian Aviation officials say the Trigana Air flight lost contact with ground control at 2:55 PM local time on Sunday as it flew from the regional capital Jayapura to the town of Oksibil in Papua, in the easterm part of Indonesia. Director Genera
2015CRI中国国际广播电台