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段落排序 #21Innovative Textile Development

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1Fibers suitable for clothing have been made for the first time from the wheat protein gluten.
2The fibers are as strong and soft as wool and silk.
3But they are up to 30 times cheaper.
4Narenda Reddy and Yiqi Yang, who produced the fibers at the University of Nebraska in Lincoln, say that because they are biodegradable they might be used in biomedical applications such as surgical sutures.
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题号#21