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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-文本逻辑
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Consumers may not think of household cleaning products to be hazardous substances, but many of them can be harmful to health, especially if they are used improperly.
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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
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Initiated five centuries after Europeans arrived in the New World on Columbus Day 1992, project SETI pledged a $100 million investment in the search for extraterrestrial intelligence.
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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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OG18-文本逻辑
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The Baldrick Manufacturing Company has for several years followed a policy aimed at decreasing operating costs and improving the efficiency of its distribution system.
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OG18-文本逻辑
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Some buildings that were destroyed and heavily damaged in the earthquake last year were constructed in violation of the city's building code.
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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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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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OG18-文本逻辑
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Though being tiny, blind, and translucent, a recently discovered species of catfish lessens their vulnerability with thickened bones and armor plates on their sides.
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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
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The psychologist William James believed that facial expressions not only provide a visible sign of an emotion, actually contributing to the feeling itself.
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OG18-文本逻辑
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Inspired by the Helsinki Accords and outraged by the harsh sentences meted out to a group of Czech rock musicians called the Plastic People of the Universe, Charter 77 was established by dissident writers, philosophers, and other professionals to be a human rights group.
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