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[新東方優(yōu)美短文背誦] 新東方優(yōu)美背誦短文50篇 Unit46:Vision
新東方優(yōu)美背誦短文50篇 Unit46:Vision46.Vision Human vision like that of other primates has evolved in an arboreal environment. In the dense complex world of a tropical forest, it is more important to2007-07-20 編輯：admin
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[新東方優(yōu)美短文背誦] 新東方優(yōu)美背誦短文50篇 Unit45:The Source
新東方優(yōu)美背誦短文50篇 Unit45:The Source of Energe45.The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun’s ve2007-07-20 編輯：admin
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[新東方優(yōu)美短文背誦] 新東方優(yōu)美背誦短文50篇 Unit44:Obtaining Fresh
新東方優(yōu)美背誦短文50篇 Unit44:Obtaining Fresh water from icebergs44.Obtaining Fresh water from icebergs The concept of obtaining fresh water from icebergs that are towed to populated areas and arid r2007-07-20 編輯：admin
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[新東方優(yōu)美短文背誦] 新東方優(yōu)美背誦短文50篇 Unit43:Statistics
新東方優(yōu)美背誦短文50篇 Unit43:Statistics 43.Statistics There were two widely divergent influences on the early development of statistical methods. Statistics had a mother who was dedicated to keeping2007-07-20 編輯：admin
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[新東方優(yōu)美短文背誦] 新東方優(yōu)美背誦短文50篇 Unit41:American Black&
新東方優(yōu)美背誦短文50篇 Unit41:American Black Bears41.American black bears American black bears appear in a variety of colors despite their name. In the eastern part of their range, most of these brow2007-07-20 編輯：admin
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[新東方優(yōu)美短文背誦] 新東方優(yōu)美背誦短文50篇 Unit42:Coal-fired powe
新東方優(yōu)美背誦短文50篇 Unit42:Coal-fired power plants42.Coal-fired power plants The invention of the incandescent light bulb by Thomas A. Edison in 1879 created a demand for a cheap, readily availabl2007-07-20 編輯：admin
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[新東方優(yōu)美短文背誦] 新東方優(yōu)美背誦短文50篇 Unit37:Icebergs
新東方優(yōu)美背誦短文50篇 Unit37:Icebergs37 IcebergsIcebergs are among nature’s most spectacular creations, and yet most people have never seen one. A vague air of mystery envelops them. They come into2007-07-19 編輯：admin
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[新東方優(yōu)美短文背誦] 新東方優(yōu)美背誦短文50篇 Unit38:Topaz
新東方優(yōu)美背誦短文50篇 Unit38:Topaz38 TopazTopaz is a hard, transparent mineral. It is a compound of aluminum, silica, and fluorine. Gem topaz is valuable. Jewelers call this variety of the stone “p2007-07-19 編輯：admin
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[新東方優(yōu)美短文背誦] 新東方優(yōu)美背誦短文50篇 Unit39:The Salinity of Ocean Wat
新東方優(yōu)美背誦短文50篇 Unit39:The Salinity of Ocean Waters39 The Salinity of Ocean WatersIf the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Neverthele2007-07-19 編輯：admin
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[新東方優(yōu)美短文背誦] 新東方優(yōu)美背誦短文50篇 Unit40:Cohesion-tension&nbs
新東方優(yōu)美背誦短文50篇 Unit40:Cohesion-tension Theory40 Cohesion-tension TheoryAtmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequ2007-07-19 編輯：admin
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