题目内容
Matching the influx of foreign immigrants into the larger cities of the United States during the late nineteenth century was a domestic migration, from town and farm to city, within the United States. The proportion of urban population began to grow remarkably after 1840, increasing from 11 percent that year to 28 percent by 1880 and to 46 percent by 1900. A country with only 6 cities boasting a population of more than 8,000 in 1800 had become one with 545 such cities in 1900. Much of the migration producing an urban society came from smaller towns within the United States, but the combination of new immigrants and old American "settlers" on America’’s "urban frontier" in the late nineteenth century proved extraordinary. The growth of cities and the process of industrialization fed on each other. The agricultural revolution stimulated many people in the countryside to seek a new life in the city and made it possible for fewer farmers to feed the large concentrations of people needed to provide a workforce for growing numbers of factories. Cities also provided ready and convenient markets for the products of industry, and huge contracts in transportation and construction—as well as the expanded market in consumer goods—allowed continued growth of the urban sector of the overall economy of the United States. Technological developments further stimulated the process of urbanization. One example is the Bessemer converter(an industrial process of manufacturing steel), which provided steel girders for the construction of skyscrapers. The refining of crude oil into kerosene, and later the development of electric lighting as well as of the telephone, brought additional comforts to urban areas that well unavailable to rural Americans and helped attract many of them from the farms into the cities. In every era the lure of the city included a major psychological element for country people; the bustle and social interaction of urban life seemed particularly intriguing to those raised in rural isolation. When did the nonuser of urban population begin to grow noticeably
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简述最惠国待遇适用的例外情形。
The girls in this sixth grade class in East Palo Alto, California, all have the same access to computers as boys. But researchers say, by the time they get to high school, they are victims of what the researchers call a major new gender (性别) gap in technology. Janice Weinman of the American Association of University Women says, "Girls tend to be less comfortable than boys with the computer. They use it more for word processing rather than for problem solving, rather than to discover new ways in which to understand information." After re-examining a thousand studies, the American Association of University Women researchers found that girls make up only a small percentage of students in computer science classes. Girls consistently rate themselves significantly lower than boys in their ability and confidence in using computers. And they use computers less often than boys outside the classroom. An instructor of a computer lab says he’’s already noticed some differences. Charles Cheadle of Cesar Chavez School says, "Boys are not so afraid they might do something that will harm the computer, whereas girls are afraid they might break it somehow." Six years ago, the software company Purple Moon noticed that girls’’ computer usage was falling behind boys. Karen Gould says, "The number one reason girls told us they don’’t like computer games is not that they’’re too violent, or too competitive. Girls just said they’’re incredibly boring." Purple Monn says it found what girls want, characters they can relate to and story lines relative to what’’s going on in their own lives. Karen Gould of Purple Moon Software says, "What we definitely found from girls is that there is no intrinsic (固有的) reason why they wouldn’’t want to play on a computer; it was just a content thing." The sponsor of the study says it all boils down to this: the technology gender gap that separates the girls from the boys must be closed if women are to compete effectively with men in the 21st century. The software company seems to think______.
阅读下面一段现代文，然后回答问题。 人在感情激动时，会流泪乃至放声，皆______动于心而______表于哭。但世事复杂，同是“挥泪”，其“情”却往往差之千里。 “失街亭”是人们熟知的故事，而比诸葛亮“挥泪斩将”更早，还有一个秦穆公“挥泪自责”的故事。《左传·骰之战》中，秦穆公不听蹇叔的正确意见，战略上决策失误，被晋军以少胜多，遭到大败。侥幸脱身的败军之将百里孟明等人逃回秦国。秦穆公赦免了他们的杀头之罪，挥泪自责：“孤之过也!”但此后便没有了下文。 诸葛亮明法纪，诫后世，挥泪斩了马谡。然后又追究问题发生的根源，自贬三级，并把自己的过失公之于众，号召部下对他的缺失错误提出批评，使他不再犯大错误。这才是真正记取教训。 “挥泪斩将”和“挥泪自责”的情况，在我们的现实生活中都有。只是有些当代的“马谡们”玩忽职守，违法乱纪，酿成“街亭失守”之类大祸后，尽管也被挥泪“斩”了，但“斩”了之后，便万事大吉。至于马谡们是怎样当上统兵之将，担负扼守要津之任的，却不再追查。这个责任不弄清，不定什么时候，还会有牛谡、半谡在这里或那里重演“失街亭”的悲剧的。更有一些“挥泪自责”的领导，其单位发生重大事故后，往往听到他们说：“我们是负有责任的。”这话乍听起来姿态挺高的，细想一想，到底有多大责任怎么个负法具体责任人应当如何处理他却含糊其辞。负责任就得根据实际责任的大小，该检查的检查，该处分的处分，该判刑的判刑。不然，泪挥得再多，既不想分清责任，也不准备承担责任，又怎能真正找出症结，严明法度，教育他人，避免重犯类似的大错误呢 诸葛亮的“挥泪斩将”能久传不绝，秦穆公的“挥泪自责”却鲜为人知，其道理大概就在这里。 第二段末的“但此后便没有了下文”，联系全文看，这句话要说明的意思是：
根据下列的路由表，对应目的网络50.0.0.0的下一跳步IP地址是 要到达网络 下一路由器 20.0.0.0 直接投递 30.0.0.0 直接投递 10.0.0.0 20.0.0.5 40.0.0.0 30.0.0.7 默认路由 60.0.0.2
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