单词:sediment production rate
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Theres a Native American site in Ohio that appeared to be a fort. But recent discoveries by archaeologists at the University of Cincinnati show thats n
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
Section B Trends for the 21st Century What problems will our world encounter in the next 1,000 years? Social scientists and economists, farming experts and environmentalists pose this question and exa
(MA) Look at our topographical map and you'll see that the middle third of the North American continent --- from the Rocky Mountains almost to the Mississippi River --- is pretty flat. This is the Great Plains. This kind of area is sometimes called
About 110 million years ago, a large plant-eating dinosaur covered with sharp points walked the land. Called a nodosaur, it is now the best example of its kind ever found. This new species of dinosaur is being called a one-in-a-billion discovery. Rec
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. As scientists delve deeper beneath the oceans surface, they find bizarre creatures that have adapted to harsh and extreme environments. Now comes a new o
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
What then of manned space exploration? 那载人的空间探索呢? The government recently announced plans to return to the moon by 2024. 美国政府最近宣布了2024重返月球的计划。 The successful conclusion of that mission will result
The 9/11 terrorist attack in New York not only killed people. It also killed local businesses, too, as many residents and companies moved out of the devastated area. 10 years on things are finally recovering. One Chinese restaurant has been part of t
Advanced - Just In Time Strategy (E0047) A: I called this meeting today in order to discuss our manufacturing plan. As Im sure youre all aware,with the credit crunch, and the global financial crisis,were obligated to look for more cost efficient ways
The geology of the planet 地球的地质情况 Welcome to the Anthropocene 欢迎来到人类纪 Humans have changed the way the world works. Now they have to change the way they think about it, too 人类改变了世界运行方式,现在,人类不
By Sabina Castelfranco Rome 22 April 2008 OPEC Secretary General Abdalla Salem el-Badri says the cartel plans to boost its oil production targets by five million barrels a day by 2012. He was speaking on the final day of the International Energy Foru
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TIANJIN, May 27 (Xinhua) -- China's first state-level animation production base opened Friday in northern Tianjin Municipality, with a total investment of 4.5 billion yuan (690 million U.S. dollars). More than 180 firms have signed up for animation p
CANBERRA, Oct. 14 (Xinhua) -- Australian scientists have made the alarming discovery that sea levels have risen more in the past century than at any other comparable period in the past 6,000 years. Researchers from the Australian National University
BEIJING, Feb. 27 (Xinhua) -- Senior Chinese legislators on Monday started their second deliberation on a draft amendment to the country's Law on the Promotion of Clean Production. At the three-day bimonthly session of the Standing Committee of the Na
Saudi Arabia is signaling that it is going to boost its supply of oil on its own after failing to convince other oil producers to jointly agree to more production. Several news agencies reported Saturday that the Saudis could increase their oil produ
primary capital 基本资金;基础资本 primary input 初期投入的资源 primary lien 第一留置权 primary listing 第一上市 primary market 初级市场;基本市场;第一市场 prim
世界本没有长难句,修饰成分多了,便有了长难句。 阅读速度大部分来于短时间内理解长难句的能力。 大家在看长难句的时候,多思考,一个句子为什么这么长,常见的修饰成分到底有哪些?