单词：bohrnstedt
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TEXT Many people in the United States spend most of their free time watching television. Certainly, there are many worthwhile programs on television, including news, educational programs for children, programs on current social problems, plays, movie
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Who could have known when I opened my eyes I would see The dark angel of my destiny This must be some kind of dream, not it's a nightmare Filled with guilt and shame All those years a waste of time Never caring Who you left behind I broke your faith
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GWEN IFILL: The climate talks over the next two weeks are expected to become a turning point in the global debate over addressing the causes of a rapidly warming planet. The lofty speeches have already begun, but what do leaders gathering in Paris th
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It was while puzzling over this problem that Bohr was struck by a solution and dashed off his famous paper. Called On the Constitutions of Atoms and Molecules, the paper explained how electrons could keep from falling into the nucleus by suggesting t
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