单词：growth and molting
单词：growth and molting 相关文章
With the late winter storm bearing down on Massachusetts, one group of plucky individuals in Milton, Massachusetts, got together to help out their neighbors across the road. From PBS station WGBH, Cristina Quinn has the story. What happens when the c
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This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. If you were a bird, how big could you be? Well, an ostrich can weigh 400 poundsbut it cant get off the ground. So what if you want to fly? University of
Scientific American(六)月
Molting Molds Flying Bird Size Limit A study in the journal Public Library of Science Biology finds that it's the rate at which flying birds can replace their flight feathers that determines how big they can grow and still get off the ground. Karen
60秒科学
BEIJING, Mar. 18 (Xinhuanet) -- Urbanization will be a major feature of China's economic growth and continue to gain momentum, Liu He, Party chief of the Development Research Center of the State Council, said on Saturday. At the China Development For
英语新闻
BEIJING, Jan. 18 (Xinhua) -- China's economic expansion slowed to 7.8 percent year on year in 2012 amid external jitters and domestic woes, data from the National Bureau of Statistics showed Friday. The growth rate, the weakest expansion in a decade,
英语新闻
Even as countries around the world are posting better economic growth rates two years after a global recession, officials from the International Monetary Fund say that is not enough to improve the livelihood of most people. Global finance chiefs at t
英语新闻