until very recently it was possible to use only natural materials of various kinds for the making of clothing. both plants and animals supply these natural materials.
from plants we get cotton and linen. from animals we get such materials as wool, silk, leather, and furs. modern man now has cloth which is made synthetically. in 1884 the first artificial fiber was made, called artificial silk, rayon, nylon and dacron are best-known products developed later.
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2016届高考英语二轮专题复习突破完形填空6
2015届高三英语(人教版必修5)一轮复习单元测试:Unit 4 Making the news Word版含答案
2016届高考英语二轮专题复习突破完形填空36
2016届高考英语二轮专题复习突破完形填空7
2015届高三英语(人教版必修4)一轮复习单元测试:Unit 3 A taste of English humour Word版含答案
2015届高三英语(人教版必修1)一轮复习单元测试:Unit 1 Friendship Word版含答案
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2015届高三英语(人教版必修4)一轮复习单元测试:Unit 1 Women of achievement Word版含答案
2016届高考英语二轮专题复习突破完形填空31
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2015届高三英语(人教版必修3)一轮复习单元测试:Unit 1 Festivals around the world Word版含答案
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2015届高三英语(人教版必修5)一轮复习单元测试:Unit 3 Life in the future Word版含答案
2015届高三英语(人教版必修1)一轮复习单元测试:Unit 4 Earthquakes Word版含答案
2015届高三英语(人教版必修1)一轮复习单元测试:Unit 5 Nelson Mandela—a modern hero Word版含答案
2016届高考英语二轮专题复习突破完形填空38
2015届高三英语(人教版必修3)一轮复习单元测试:Unit 5 Canada—“The True North” Word版含答案
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2015届高三英语(人教版必修3)一轮复习单元测试:Unit 2 Healthy eating Word版含答案
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2016届高考英语二轮专题复习突破完形填空41
2015届高三英语(人教版必修5)一轮复习单元测试:Unit 1 Great Scientists Word版含答案
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2015届高三英语(人教版必修4)一轮复习单元测试:Unit 5 Theme parks Word版含答案
2015届高三英语(人教版必修5)一轮复习单元测试:Unit 5 First aid Word版含答案
2015届高三英语(人教版必修3)一轮复习单元测试:Unit 4 Astronomy the science of the stars Word版含答案
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