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Fears of "mad cow" disease spread (1) the globe last week (2) South Africa, New Zealand and Singapore joining most of Britain’ s European Union partners in (3) imports of British beef. In London, steak restaurants were empty follwing the March 20 announcement by scientists that they had found a (4) link between mad cow disease from British beef and its human (5) , Creutzfeldt-Jakob disease(CJD) . Efforts to reassure consumers and governments proved (6) . France, Germany, Italy, Finland and Greece were among countries which announced bans (7) British beef shipments. A committee of EU veterinary experts, meeting in Brussels, (8) new protective measures but said transmission of the disease from cattle to humans was unproven and did not (9) a general ban on British beef exports. Britain’s own main consumer group advised people to (10) beef if they wanted to be absolutely sure of not (11) CJD which destroys the brain and is always (12) . "Could it be worse than AIDS" The stark headline in Friday’s Daily mail newspaper encapsulated the fear and uncertainty (13) Britain. CJD (14) humans in the same way that BSE makes cows mad—by eating away nerve cells in the brain (15) it looks like a spongy Swiss cheese. The disease is incurable. Victims show (16) of dementia and memory loss and usually die (17) six months. Little is known (18) sure about the group of diseases known collectively as spongiform encephalopathies, which explains (19) some eminent scientists are not prepared to (20) a human epidemic of AIDS-like proportions.
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某固定资产项目投产，投资500万元，建设期一年，建设资金于建设起点投入300万元，建设期末投入200万元，运营期为10年，终结点回收固定资产残值50万元。该项目投产后，每年可获利80万元，假定行业基准折现率为10%。 要求：计算该项目的投资净现值，净现值率和获利指数。 [(P/A，10%，10)=6.1446，(P/F，10%， 11)=0.3505，(P/A，10%，1)=0.9091]
Text 2 The producers of instant coffee found their product strongly resisted in the market places despite their product’s manifest advantages. Furthermore, the advertising expenditure for instant coffee was far greater than that for regular coffee. Efforts were made to find the cause of the consumers’ seemingly unreasonable resistance to the product. The reason given by most people was dislike for the taste. The producers suspected that there might be deeper reasons, however. This was confirmed by one of motivation research’s classic studies, one often cited in the trade. Mason Haire, of the university of California, constructed two shopping lists that were identical except for one item. There were six items common to both lists: hamburger, carrots, bread, baking powder, canned peaches, and potatoes, with the brands or amounts specified. The seventh item, in fifth place on both lists, read "1 lb. Maxwell House Coffee" on one list and "Nestle Instant Coffee" on the other. One list was given to each one in a group of fifty women, and the other list to those in another group of the same size. The women were asked to study their lists and then to describe, as far as they could, the kind of women ("personality and character") who would draw up that shopping list. Nearly half of those who had received the list including instant coffee described a housewife who was lazy and a poor planner. On the other hand, only one woman in the other group described the housewife, who had included regular coffee on her list, as lazy; only six of that group suggested that she was a poor planner. Eight women felt that the instant-coffee user was probably not a good wife! No one in the other group drew such a conclusion about the housewife who intended to buy regular coffee. Which of the following was confirmed by the motivation studies
“海关放行”是指海关在接受各类进出口货物的申报，经过审核报关单证、查验货物、依法征收税费，作出结束海关监管，允许货物自由处置(或自由流通)的决定的行为。( )
41)__________. The mystery involves a change in the atmoshpere—a hole, or thinning, of the ozone in the atmosphere over Antarctica. Scientists were not sure what was causing it. 42) __________. It is found both in the air we breathe and in the upper atmosphere. Near the earth, ozone in the air is a danger to life. It is a pollutant. But ozone found 10 kilometers to 50 kilometers up in the atmosphere protects life on earth. Ozone forms in the atmosphere through the action of solar radiation. Once formed, the ozone blocks harmful radiation from reaching the earth. Scientists say a decrease in ozone and an increase in the harmful radiation will cause many more cases of skin cancer and will harm crops, animals and fish. 43) __________. Chlorine is released into the air from the chlorofluorocarbons—or CFCs—used in plastic, air conditioners and spray cans. The use of CFCs has greatly increased worldwide since 1960 and is continuing to increase. The destruction of the ozone in the atmosphere also has increased. An international effort is being made to halt the loss of atmospheric ozone. But many experts fear the effort will not produce results fast enough to prevent harm to life on earth. Thirty-one nations negotiated a treaty last year (1987) calling for a reduction in the worldwide production of chlorofluorocarbons. It was praised at the time as a major step in halting further destruction of the ozone. Cuts in the present production of CFCs will begin in the mid-1990s. 44) __________. Harmful chemicals take from 7 to 10 years to rise up into the atmosphere. Damage from the increase use of CFCs in this past decade still has not been felt. Government scientists say more than two times the mount of these gases will be in the atmosphere before the levels stop rising. 45) __________. Scientists point out a molecule of chlorine remains in the atmosphere for as long as 100 years. During that time, it destroys tens of thousands of ozone molecules. [A] Why has the ozone problem developed No one knows for sure. But scientists say the evidence is very strong that the chlorine in chlorofluorocarbons (含氯氟烃)is causing much of the problem. [B] Almost 30 years after scientists discovered that common industrial gases were destroying Earth’s protective ozone layer, satellite readings and ground observations show for the first time that the dangerous rate of ozone loss is finally slowing.[C] Ozone is a three-atom form of oxygen gas.[D] There have been some new developments in a continuing mystery we have reported about many times.[E] Scientists also say damage to ozone will continue because of the long life of the chemical gases released into the atmosphere.[F] The ozone problem caused by CFCs was first noticed as early as the 1960s.[G] However, most scientists now agree destruction of the ozone will continue for decades. They say this will happen even though industries and governments do their best to control the damage.
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