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757 、 玻璃纤维席 glassfibremats 758 、 界面；分界面；接口 interface 759 、 相差 phasedifference 760 、 相对密度 relativedensity 761 、 砂布 emerycloth 762 、 砂磨 sandin
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It is the eye-popping brand that boasts the worlds most glamorous bras, but Parma resident Roberta Ritter says her Victoria's Secret, Angel Secret Embrace and Very Sexy Extreme Push-Up bras, made her feel anything but glamorous. She says shortly afte
万花筒2008年
The Mysterious Liquid In Yogurt酸奶中的神秘液体（双语） When you open a container of yogurt, youll often see liquid collected on top. Some people mix it back into the yogurt, and others drain it off. What is it, and where does it come fro
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The Mysterious Liquid In Yogurt When you open a container of yogurt, youll often see liquid collected on top. Some people mix it back into the yogurt, and others drain it off. What is it, and where does it come from? To solve the mystery of the liqui
英语听力文摘 English Digest
By Jerilyn Watson Broadcast: October 30, 2003 This is Steve Ember with the VOA Special English Education Report. Many people remember the day in school when they had to 1)cut up a dead frog. Students
VOA2003（下）-教育与新闻
1. The AP has obtained this video showing yesterday's underground steam pipe explosion as it happened. The blast in midtown Manhattan killed one person and sent debris and dust flying. 2. A federal judge is dismissing Valerie Plame's lawsuit against
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AILSA CHANG, HOST: We're going to take you back now to the late 1800s, when eating food in the U.S. meant taking a calculated risk. The country was growing. People were moving into cities. And industrialization gave food producers new, sometimes dang
2018年NPR美国国家公共电台10月
Science and Technology Plastics There and back again 科技 塑料 旧法新用 An old idea may help solve the problem of plastic waste 一个老方法也许可以帮助解决塑料垃圾的问题 PLASTICS were once regarded as wonder-materials. They
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