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随着家庭收入的增加，用于购买食品的支出占家庭收入的比重会上升。( )
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1．施工网络图中的关键线路有几条？2．就各事件分别说明上述索赔要求是否正确？3．该工程实际工期为多少？
1．施工单位未经监理单位许可即进行混凝土浇筑，该做法是否正确如果不正确，施工单位应如何做？2．为了保证该综合实验楼的工程质量达到设计和规范要求，施工单位对进场材料应如何进行质量控制？3．如果该工程施工过程中实施了工程监理，监理单位对该起质量事故是否应承担责任，为什么？4．施工单位现场质量检查的内容有哪些？
Cyberspace, data superhighway, multi-media--for those who have seen the future, the linking of computers television and telephones will change our lives for ever. Yet for all the talk of a forthcoming technological utopia little attention has been given to the implications of these developments for the poor. As with all new high technology, while the West concerns itself with the "how", the question of "for whom" is put aside once again.Economists are only now realizing the full extent to which the communications revolution has affected the world economy. Information technology allows the extension of trade across geographical and industrial boundaries, and transnational corporations take full advantage of it. Terms of trade, exchange and interest rates and money movements are more important than the production of goods. The electronic economy made possible by information technology allows the haves to increase their control on global markets--with destructive impact on the have-nots.For them the result is instability. Developing countries which rely on the production of a small range of goods for export are made to feel like small parts in the international economic machine. As "futures" are traded on computer screens, developing countries simply have less and less control of their destinies.So what are the options for regaining control One alternative is for developing countries to buy in the latest computers and telecommunications themselves--so-called "development communications" modernization. Yet this leads to long-term dependency and perhaps permanent constraints on developing countries’ economies.Communications technology is generally exported from the U. S., Europe or Japan; the patents, skills and ability to manufacture remain in the hands of a few industrialized countries. It is also expensive, and imported products and services must therefore be bought on credit--credit usually provided by the very countries whose companies stand to gain.Furthermore, when new technology is introduced there is often too low a level of expertise to exploit it for native development. This means that while local elites, foreign communities and subsidiaries of transnational corporations may benefit, those whose lives depend on access to the information are denied it. It can be inferred from the passage that().
Real policemen hardly recognize any resemblance between their lives and what they see on TV.The first difference is that a policeman’s real life revolves round criminal law. He has to know exactly what actions are crimes and what evidence can be used to prove them in court. He has to know nearly as much law as a professional lawyer, and what is more, he has to apply it on his feet, in the dark and rain, running down a street after someone he wants to talk to.Little of his time is spent in chatting, he will spend most of his working life typing millions of words on thousands of forms about hundreds of sad, unimportant people who are guilty of stupid, petty crimes.Most television crime drama is about finding the criminal: as soon as he’s arrested, the story is over. In real life, finding criminals is seldom much of a problem. Except in very serious cases like murders and terrorist attacks little effort is spent on searching.Having made an arrest, a detective really starts to work. He has to prove his case in court and to do that he often has to gather a lot of different evidence.A third big difference between the drama detective and the real one is the unpleasant pressures: firstly, as members of a police force they always have to behave absolutely in accordance with the law; secondly, as expensive public servants they have to get results. They can hardly ever do both. Most of the time some of them have to break the rules in small ways.If the detective has to deceive the world, the world often deceives him. Hardly anyone he meets tells him the truth. And this separation the detective feels between himself and the rest of the world is deepened by the simple-mindedness--as he sees it--of citizens, social workers, doctors, law-makers, and judges, who, instead of eliminating crime punish the criminals less severely in the hope that this will make them reform. The result, detectives feel, is that nine-tenths of their work is recatching people who should have stayed behind bars. This makes them rather cynical. What is the most suitable word that describes the work of a policeman according to the passage().
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