单词：oligomitic sediment
单词：oligomitic sediment 相关文章
Roughly 1,000 years ago, Europe enjoyed several centuries of balmier average temperatures. Dubbed the Medieval Warm Period, it was the last time before the present that agriculture could flourish in Greenland. This era also provided fodder for countl
Scientific American(十一)月
Obama's Pledge of Aid Welcomed in Mideast, Politics Less So Reaction to President Barack Obama's speech on the Middle East has prompted some initial mixed reactions in Egypt. While plans for economic and development aid are being welcomed, hopes for
VOA标准英语2011年(五月)
Lake Sediment Could Better Date Ancient Finds Radiocarbon dating is the best-known and most widely used method to determine the age of organic material, such as bone or wood or plant matter. All such material contains radioactive carbon atoms, known
VOA标准英语2012年(十月)
Politicians provoke poet's ire 政治家引起诗人不满 The new poet laureate, Carol Ann Duffy, has chosen to attack politicians in her first composition in the post. Her poem, Politics, published in the Guardian, is a cutting attack on the political worl
英语新闻
By Jim Malone Washington 08 September 2006 Five years later, the 2001 terrorist attacks on the United States continue to have a far-reaching impact on national politics. Hours after the attacks on September 11, 2001, members of Congress gathered on
2006年VOA标准英语（九月）
Tea Party Shakes, Shapes US Politics Protests against Wall Street and economic inequality have grown in New York, Washington and other U.S. cities, as citizens speak out against corporate interests. These protests in some ways mirror the rise of the
VOA标准英语2011年(十月)