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[新东方优美短文背诵] 新东方优美背诵短文50篇 Unit36:Plate Tectonics and Sea-f
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[新东方优美短文背诵] 新东方优美背诵短文50篇 Unit35:Oil Refining
新东方优美背诵短文50篇 Unit35:Oil Refining35.Oil RefiningAn important new industry, oil refining, grew after the Civil war. Crude oil, or petroleum – a dark, thick ooze from the earth – had been kn2007-07-18 编辑:admin
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[新东方优美短文背诵] 新东方优美背诵短文50篇 Unit34:Raising Oysters
新东方优美背诵短文50篇 Unit34:Raising Oysters34 Raising OystersIn the oysters were raised in much the same way as dirt farmers raised tomatoes- by transplanting them. First, farmers selected the oyst2007-07-18 编辑:admin
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[新东方优美短文背诵] 新东方优美背诵短文50篇 Unit33:Plankton浮游生物
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[新东方优美短文背诵] 新东方优美背诵短文50篇 Unit32:Botany
新东方优美背诵短文50篇 Unit32:Botany32 Botany Botany, the study of plants, occupies a peculiar position in the history of human knowledge. For many thousands of years it was the one field of awarenes2007-07-18 编辑:admin
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[新东方优美短文背诵] 新东方优美背诵短文50篇 Unit29:Telecommuting
新东方优美背诵短文50篇 Unit29:Telecommuting29 TelecommutingTelecommuting-- substituting the computer for the trip to the job ----has been hailed as a solution to all kinds of problems related to offi2007-07-18 编辑:admin
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[新东方优美短文背诵] 新东方优美背诵短文50篇 Unit30:The origin 
新东方优美背诵短文50篇 Unit30:The origin of Refrigerators30 The origin of RefrigeratorsBy the mid-nineteenth century, the term “icebox” had entered the American language, but ice was still only beg2007-07-18 编辑:admin
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[新东方优美短文背诵] 新东方优美背诵短文50篇 Unit31:British Columbi
新东方优美背诵短文50篇 Unit31:British Columbia31 British ColumbiaBritish Columbia is the third largest Canadian provinces, both in area and population. It is nearly 1.5 times as large as Texas, and e2007-07-18 编辑:admin
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[新东方优美短文背诵] 新东方优美背诵短文50篇 Unit27:Scientific Theo
新东方优美背诵短文50篇 Unit27:Scientific Theories27. Scientific TheoriesIn science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary mode2007-07-18 编辑:admin
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[新东方优美短文背诵] 新东方优美背诵短文50篇 Unit28:Changing Roles of Public
28.Changing Roles of Public EducationOne of the most important social developments that helped to make possible a shift in thinking about the role of public education was the effect of the baby boom2007-07-18 编辑:admin