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Scientists have devised a way to determine roughly where a person has lived using a strand of hair, a technique that could help track the movements of criminal suspects or unidentified murdervictims.
出自-2015年12月听力原文
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He had his hair cut yesterday
出自-2014年6月听力原文
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"You're what you eat and drink, and that's recorded in your hair,"said Thure Cerling, a geologist at the University of Utah.
2015年12月六级真题（第二套）听力 Section C
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Basically we turned our skin darker to serve as a natural sun protector in the place of the hair we lost.
2019年6月六级真题（第一套）听力 Section C
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It helps build nails, hair, bones and muscles.
2019年12月六级真题（第二套）阅读 Section B
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Last year, MATTEL, the company that makes Barbie dolls, added some Barbies to its line that have different skin tones and hair textures.
2017年12月六级真题（第一套）听力 Section B
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The method relies on measuring how chemical variations in drinking water show up in people's hair.
2015年12月六级真题（第二套）听力 Section C
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There are now Barbies of one of 7 skin tones, 22 eye colors and 24 hair styles to choose from.
2017年12月六级真题（第一套）听力 Section B
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They checked the accuracy of the map by testing 200 hair samples collected from 65 barber shops.
2015年12月六级真题（第二套）听力 Section C
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They found that the average person's mind wandered most frequently about 65% of the time during personal activities, such as brushing their teeth and combing their hair.
2019年12月六级真题（第一套）听力 Section B
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They were able to accurately place the hair samples in broad regions roughly corresponding to the movement of rain systems.
2015年12月六级真题（第二套）听力 Section C
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Today we have a few patches of hair remaining on various parts of our bodies.
2019年6月六级真题（第一套）听力 Section C
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We think we lost this hair because of the need to keep ourselves cool when we were moving around vigorously in a hot environment.
2019年6月六级真题（第一套）听力 Section C
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When Park heard about the research, he gave the hair samples to the researchers.
2015年12月六级真题（第二套）听力 Section C