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Passage 2A major new development in systems of work in Britain is taking place. Flexible working hours, or “Flextime”, are catching on fast, and this trend is continuing. In 1973, over 500 organizations adopted the idea, and by 1974, this number had risen to over 200, 000. Flexible working hours were invented in Germany in the late 1960’s, but reached Britain only in 1972. The system allows workers to start and finish work whenever they want, with only two requirements. These are, firstly, that all workers must be present for certain “key” times in day, and secondly, that all workers must work an agreed total number of hours per week. The system has proved an almost total success wherever it has been tried. A survey of 700 workers on flexible hours showed three main advantages: a better balance between working and private life, avoidance of the need to travel during rush hours and the ability to be able to finish a certain task before leaving. From the employer’s point of view, the system tends to increase productivity, reduce labor turnover and give the workers a greater sense of duty. One of the main advantages of “Flextime” for workers is that they ______.
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某50kg病人拟行面部手术，用1%利多卡因35ml（含1：40万肾上腺素）局部浸润麻醉后，病人烦躁、多语、寒战、面部肌肉抽搐。 该病人出现这些反应最可能的原因是
Passage 1The advantages and disadvantages of a large population have long been a subject of discussion among economists. It has been argued that the supply of good land is limited. To feed a large population, inferior land must be cultivated and the good land worked intensively. Thus, each person produces less and this means a lower average income than could be obtained with a smaller population. Other economists have argued that a large population gives more scope for specialization and justifies the development of facilities such as ports, roads and railways, which are not likely to be built unless there is a big demand. One of the difficulties in carrying out a worldwide birth control program lies in the fact that official attitudes to population growth vary from country to country depending on the level of industrial development and the availability of food raw materials. In the developing country where a vastly expanded population is pressing hard upon the limits of food, space and natural resources, it will be the first concern of government to place a limit on the birthrate, whatever the consequences may be. In a highly industrialized society, the problem may be more complex. A decreasing birthrate may lead to unemployment because it results in a declining market for manufactured goods. When the pressure of population on housing declines, prices also decline and the building industry is weakened. Faced with considerations such as these, the government of a developed country may well prefer to see a slowly increasing population, rather than one which is stable or in decline. In a developed country, people will perhaps go out of work if ______.
阅读以下说明，回答问题1至问题4，将解答填入对应栏内。【说明】某大型网上商城销售各类百货商品，为保证顾客能够安全方便地在网上商城购物，网站提供了基于SET协议机制保证安全交易的在线支付功能。小明在该网上商城购买了一部数码相机，请根据描述回答问题。 【问题2】1．小明选择该网上商城提供的在线支付功能完成了货款支付，以下说法正确的是 (4) 。A．小明在网上商城浏览商品时，SET开始介入 B．小明选择商品放入购物车时，SET开始介入C．小明填写订单时，SET开始介入 D．小明选择付款方式时，SET开始介入2．网站通过SET协议机制中采用的双重数字签名技术，能够保证 (5) 。A．商家能看到小明的购物信息和小明的账户信息B．商家不能看到小明的购物信息和小明的账户信息C．商家能看到小明的购物信息，但不能看到小明的账户信息D．商家不能看到小明的购物信息，但能看到小明的账户信息
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