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OG18-文本逻辑 OG19-文本逻辑 OG20-文本逻辑
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Literacy opened up entire realms of verifiable knowledge to ordinary men and women having been previously considered incapable of discerning truth for themselves.
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OG18-文本逻辑 OG19-文本逻辑 OG20-文本逻辑
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In early Mesopotamian civilization, castor oil served not only as a laxative, but also a skin-softening lotion and it was a construction lubricant for sliding giant stone blocks over wooden rollers.
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OG18-文本逻辑 OG19-文本逻辑 OG20-文本逻辑
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An analysis of tree bark all over the globe shows that chemical insecticides have often spread thousands of miles from where they were originally used.
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OG18-语文分册 OG19-语文分册 OG20-语文分册
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According to the Economic Development Corporation of Los Angeles County, if one were to count the Los Angeles metropolitan area as a separate nation, it would have the world`s eleventh largest gross national product, that is bigger than that of Australia, Mexico, or the Netherlands.
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PREP07 Test 1 OG18-文本逻辑 OG19-文本逻辑
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According to some economists,the July decrease in unemployment so that it was the lowest in two years suggests that the gradual improvement in the job market is continuing.
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PREP07 Test 1 OG18-文本逻辑 OG19-文本逻辑 OG20-文本逻辑
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Developed by Pennsylvania's Palatine Germans about 1750, they made Conestoga wagons with high wheels capable of crossing rutted roads, muddy flats, and the nonroads of the prairie and they had a floor curved upward on either end so as to prevent cargo from shifting on steep grades.
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OG19-文本逻辑 OG20-文本逻辑
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The reason many people consider the Mediterranean island to be ungovernable is because that the inhabitants long ago learned to distrust and neutralize all written laws.
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OG18-文本逻辑 OG19-文本逻辑 OG20-文本逻辑
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Because the collagen fibers in skin line up in the direction of tension, surgical cuts made along these so-called Langer`s lines sever fewer fibers and is less likely to leave an unsightly scar.
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OG19-文本逻辑 OG20-文本逻辑
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The completion in 1925 of the Holland Tunnel, linking Manhattan with New Jersey's highways, which permitted 2,000 cars to pass through each tube every hour and was hailed as the decade's $48 million engineering masterpiece.
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OG18-文本逻辑 OG19-文本逻辑
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In A.D. 391,resulting from the destruction of the largest library of the ancient world at Alexandria,later generations lost all but the Iliad and Odyssey among Greek epics,most of the poetry of Pindar and Sappho, and dozens of plays by Aeschylus and Euripides.
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OG18-文本逻辑 OG19-文本逻辑
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The nephew of Pliny the Elder wrote the only eyewitness account of the great eruption of Vesuvius in two letters to the historian Tacitus.
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OG18-文本逻辑 OG19-文本逻辑
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Nearly two tons of nuclear-reactor fuel have already been put into orbit around the Earth, and the chances of a collision involving such material increase greatly as the amount of both space debris and satellites continue to rise.
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OG19-文本逻辑 OG20-文本逻辑
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The World Wildlife Fund has declared that global warming, a phenomenon that most scientists agree is caused by human beings' burning of fossil fuels, will create havoc among migratory birds by harming their habitats as a result of altering the environment.
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OG19-文本逻辑 OG20-文本逻辑
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Tropical bats play an important role in the rain forest ecosystem, aiding in the dispersal of cashew, date, and fig seeds; pollinating banana, breadfruit, and mango trees; and indirectly help the producing of tequila by pollinating agave plants.
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OG18-文本逻辑 OG19-文本逻辑 OG20-文本逻辑
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A recent court decision has qualified a 1998 ruling that workers cannot be laid off if they have been given reason to believe that their jobs will be safe, provided that their performance remains satisfactory.
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PREP07 Test 1 OG18-文本逻辑 OG19-文本逻辑
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Thomas Eakins' powerful style and his choices of subject-the advances in modern surgery, the discipline of sport,the strains of individuals in tension with society or even with themselves-was as disturbing to his own time as it is compelling for ours.
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PREP07 Test 2 OG18-文本逻辑 OG19-文本逻辑
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As well as heat and light, the Sun is the source of a continuous stream of atomic particles known as the solar wind.
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OG18-文本逻辑 OG19-文本逻辑 OG20-文本逻辑
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Of all the record companies involved in early jazz, the three most prominent were Columbia, Victor, and OKeh.
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OG18-文本逻辑 OG19-文本逻辑
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Analysts blamed May's sluggish retail sales on unexciting merchandise as well as the weather, colder and wetter than was usual in some regions, which slowed sales of barbecue grills and lawn furniture
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GWD OG18-文本逻辑 OG19-文本逻辑
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Twenty-two feet long and 10 feet in diameter, the AM-1 is one of the many new satellites that is a part of 15 years effort of subjecting the interactions of Earth's atmosphere, oceans, and land surfaces to detailed scrutiny from space.
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