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This is the VOA Special English Health Report. Scientists have discovered that stored blood loses a life-saving gas. This discovery may explain why a great number of people get sick after receiving stored blood. In recent years, experts have wondere
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小美女Tiffany Alvord原创新单The Breakdown官方MV首播 小美女Tiffany Alvord原创单曲The Breakdown官方mv首播！这首歌被小美女唱出了一些摇滚的感觉，看着她画的精致妆容和mv中拍摄的情节，感受到改变了
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Researchers from Xian Jiaotong University in Northwest Chinas Shaanxi Province have developed a way to eliminate air pollutants during the coal-burning process, which they hope would significantly address the countrys smog problems. 来自中国西北的
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电脑英语--常见硬件篇CPU：Central Processing Unit，中央处理单元，又叫中央处理器或微处理器，被喻为电脑的心脏。 RAM：Random Access Memory，随机存储器，即人们常说的内存。 ROM：Read－Only Memory，只
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The World Health Organization, upgrading a previous warning, said June 12 that diesel exhaust causes cancer and called for tighter emissions standards, comparing the risk of exhaust to second-hand cigarette smoke. Tuesdays announcement comes after in
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18 The Bounding Main 第十八章 浩瀚的海洋 Imagine trying to live in a world dominated by dihydrogen oxide, 请你想像一下，你能不能生活在一个由一氧化二氢主宰的世界里。 a compound that has no taste or smell and is so
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