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Improve Your Writing by Using Concept Maps English learners face a common problem: their writing often lacks clarity and cohesion. That is according to Babi Kruchin and Alan Kennedy who teach at the American Language Program at Columbia University. T
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WASHINGTON, July 26 (Xinhua) -- White House Spokesman Robert Gibbs on Monday said the United States is investigating the leak of over 90,000 classified reports about Afghanistan war. Gibbs said there is an ongoing（不间断的） investigation that
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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. If you have a dog, you know you gotta walk it. But do you know how it walks? Well, if you have no idea which foot Fido puts forward when, youre in good c
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When I was growing up, I had an old neighbor named Dr. Gibbs. He didnt look like any doctor Id ever known. He never yelled at us for playing in his yard. I remember him as someone who was a lot nicer than 1)circumstances warranted. When Dr. Gibbs was
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