By late middle ages many workers are looking 41 to retirement, and millions of those 42 have retired are only too glad to exchange the routines of work 43 the satisfaction that a more leisured life may 44. Many other workers are reluctant to give up their 45. The desire to continue working often stems from harsh economic reality, for 46 usually brings a sharp drop in income. 47 workers fear the loss of social identity that can result from 48 a job. They may be left with “nothing to do”, and may find that they are 49 a life with significant meaning and fulfillment. Those old people who 50 like to continue working are often victims of 51 is perhaps the most striking example of age discrimination (歧视): the practice of mandatory (强制的) retirement, under which people are forced to give up their jobs immediately when they 52 a certain age. Until recently the precise age for mandatory retirement 53 from job to job. The usual mandatory retirement age in the U.S.A., however, was sixtyfive. The objection to mandatory retirement is that there is no 54 to suggest that most people over the age of sixtyfive or seventy are incapable of working; at the turn of the century, in fact, 70 percent of men over sixtyfive were still 55 in the labor force.
A. that
B. who
C. which
D. whom
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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1】 1.SET协议主要是解决 (1) 的安全网络支付问题。A.现金 B.支票 C.银行卡 D.汇票2.SET支付系统的参与对象中, (2) 是银行内部网与互联网的接口,负责将网上商城的付款信息转送到银行内部网络进行处理。A.持卡客户 B.网上商家 C.认证机构 D.支付网关3.SET协议的定义内容不包括 (3) 。A.参与者之间的消息协议B.加密算法的应用C.购买消息和对象格式D.单证消息和对象格式
Research on animal intelligence always makes us wonder just how smart humans are. (1) the fruit-fly experiments described by Carl Zimmer in the Science Times. Fruit flies who were taught to be smarter than the average fruit fly (2) to live shorter lives. This suggests that (3) bulbs burn longer, that there is a(n) (4) in not being too bright. Intelligence, it (5) , is a high-priced option. It takes more upkeep, burns more fuel and is slow (6) the starting line because it depends on learning — a(n) (7) process — instead of instinct. Plenty of other species are able to learn, and one of the things they’ve apparently learned is when to (8) . Is there an adaptive value to (9) intelligence That’s the question behind this new research. Instead of casting a wistful glance (10) at all the species we’ve left in the dust I.Q.-wise, it implicitly asks what the real (11) of our own intelligence might be. This is (12) the mind of every animal we’ve ever met. Research on animal intelligence also makes us wonder what experiments animals would (13) on humans if they had the chance. Every cat with an owner, (14) , is running a small-scale study in operant conditioning. We believe that (15) animals ran the labs, they would test us to (16) the limits of our patience, our faithfulness, our memory for locations. They would try to decide what intelligence in humans is really (17) , not merely how much of it there is. (18) , they would hope to study a(n) (19) question: Are humans actually aware of the world they live in (20) the results are inconclusive.
A. at
B. for
C. after
D. with
Research on animal intelligence always makes us wonder just how smart humans are. (1) the fruit-fly experiments described by Carl Zimmer in the Science Times. Fruit flies who were taught to be smarter than the average fruit fly (2) to live shorter lives. This suggests that (3) bulbs burn longer, that there is a(n) (4) in not being too bright. Intelligence, it (5) , is a high-priced option. It takes more upkeep, burns more fuel and is slow (6) the starting line because it depends on learning — a(n) (7) process — instead of instinct. Plenty of other species are able to learn, and one of the things they’ve apparently learned is when to (8) . Is there an adaptive value to (9) intelligence That’s the question behind this new research. Instead of casting a wistful glance (10) at all the species we’ve left in the dust I.Q.-wise, it implicitly asks what the real (11) of our own intelligence might be. This is (12) the mind of every animal we’ve ever met. Research on animal intelligence also makes us wonder what experiments animals would (13) on humans if they had the chance. Every cat with an owner, (14) , is running a small-scale study in operant conditioning. We believe that (15) animals ran the labs, they would test us to (16) the limits of our patience, our faithfulness, our memory for locations. They would try to decide what intelligence in humans is really (17) , not merely how much of it there is. (18) , they would hope to study a(n) (19) question: Are humans actually aware of the world they live in (20) the results are inconclusive.
A. thinner
B. stabler
C. lighter
D. dimmer
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. Flexible working hours were firstly invented by the ______.
A. British
B. Americans
C. Germans
D. Japanese