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According to the passage, the age of silicate mine......
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In medieval Europe, watermills were more (i)_____ ......
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There are great _____ in countries’ greenhouse g......
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Many popular musicians have (i)____ new digital te......
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Twenty years ago, when the book was first publishe......
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In the discussions on international patent law, ma......
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Not only is the field of behavioral genetics strew......
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The Golden Gates Bridge has been quite (i)_____ by......
