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But experts say that even when combined , alternative energy sources will likely meet only about 30% of the world's energy needs by 2050.
出自-2011年12月阅读原文
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All of which, combined with California's reputation as the home of technological innovation, makes the place ideal for developing and testing systems designed to monitor pollution in detail.
2018年6月四级真题（第二套）阅读 Section A
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In the back room of the little bakery, his interest in design and his baking talent combined to work wonders—he shaped delicious masterpieces out of flour, butter and sugar.
2018年12月四级真题（第二套）阅读 Section B
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like her mother, Irene combined family with career.
2017年12月四级真题（第一套）听力 Section C
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The combined effects of those trends and the political tensions they generate point to the breakdown of governments and societies.
2016年6月四级真题（第一套）阅读 Section B
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The extensive data sources, combined with computer simulations, created a timeline of ocean temperature changes, including cooling from volcanic outbreaks and warming from fossil fuel emissions.
2016年12月四级真题（第二套）阅读 Section A
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They found that the majority of both kids and adults opted for a half-sized portion when combined with a prize.
2016年12月四级真题（第三套）阅读 Section C
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Rising population combined with improved nutrition standards and shifting dietary preferences will exert pressure for increases in global food supply.
出自-2013年12月阅读原文
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This means, of course, that almost all of the books published in the 20th century are still under copyright – and the last century saw more books published than in all previous centuries combined.
出自-2011年12月阅读原文
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On Jan 9, 2007, Steve Jobs formally announced Apple's "revolutionary mobile phone"—a device that combined the functionality of an iPod, phone and Internet communication into a single unit, navigated by touch.
2018年12月六级真题（第一套）阅读 Section C
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Only three states, with a combined population not much larger than that of Brooklyn,have unemployment rates below 5%.
2016年6月六级真题（第三套）阅读 Section C
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There are more clinically trained social workers than clinically trained psychiatrists, psychologists and psychiatric nurses combined.
2016年12月六级真题（第一套）听力 Section C
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This is troubling as climbing Arctic temperatures combined with rapid sea ice loss are creating a new type of climate feedback loop, which could accelerate Arctic warming.
2018年12月六级真题（第二套）听力 Section B
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Transforming downtown areas so that they incorporate modem housing and improved walkability to local restaurants, retail, and entertainment—especially when combined with improved infrastructure for cyclists and public transit—makes them appeal to a more a
2017年12月六级真题（第一套）阅读 Section C