单词：Nernst-Lindemann calorimeter
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Nevada Families Struggle with Poverty in Shadow of Casinos In the shadow of the glittering casinos and resorts of Las Vegas, Nevada, many poor families are struggling to get by. Several recent studies have found that one in five American children liv
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Leonard Bernstein: Composer, Conductor, Pianist and Teacher Written by Jerilyn Watson (MUSIC) ANNCR: Welcome to People in America in VOA Special English. Today, Rich Kleinfeldt and Sarah Long tell about the life and work of one of the most influentia
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The Gender Wage Gap In The Arts STEVE INSKEEP, HOST: We heard a lot during the presidential campaign about the wage gap, the fact that women often earn less than men for the same kinds of work. Hillary Clinton pushed that issue, and she lost. But it
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Trump Promises Crackdown On Immigrants At Iowa 'Roast And Ride' Event play pause stop mute unmute max volume 00:0002:51repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your
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Science and technology 科学技术 Alternative medicine 替代医疗 Think yourself better 往好处想 Alternative medical treatments rarely work. But the placebo effect they induce sometimes does 替代疗法的治疗效果见效甚微，但是所产
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After 25 years of watered-down policies, proposed law would hold states accountable for polluting the Bay Rosanne Skirble | Annapolis, Washington 30 November 2009 Watch: Skirble report Windows Media EPA collected 19,000 postcards petitioning the gove
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Ever wonder how they determine how many calories are in food? Yael and Don explain it in this Moment of Science. Y: All right, Don. What are you doing? D: I'm using a bomb calorimeter to figure out how many calories are in my lunch. See, I put my san
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