单词:commutativities
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By John Shields Washington 10 February 2006 watch Africa Bird Flu report Chickens for sale in a Lagos market The World Health Organization says this week's outbreak of the deadly H5N1 avian flu virus
The U.S. and Russia presidents are scheduled to meet for the first time Wednesday on the sidelines of the G20 summit in London. The new Kremlin leader comes to the meeting with a record of policy initiatives that have swung between belligerent threa
Radio Essays Explore Technological Creativity There are mechanisms in nature as well as in human endeavors like engineering and art. Since 1988, the creative manipulation of these mechanisms has been explored in short radio essays about the history o
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Leaders of China and the European Union exchanged congratulatory messages Wednesday to mark the 40th anniversary of the establishment of bilateral diplomatic ties. Chinese President Xi Jinping and Premier Li Keqiang mentioned the global challenges ov