51题库考试学习网
最新考题
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问答题试述国际收支失衡的调整。
06-10
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名词解释题贷方与借方项目
06-10
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名词解释题边际进口倾向
06-10
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名词解释题技术性贸易壁垒
06-10
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问答题试分析一国最佳外汇储备规模指标。
06-10
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问答题试述国际经济学的产生、对象及方法。
06-10
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问答题简述列昂惕夫反论的主要内容。
06-10
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名词解释题提供曲线
06-10
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单选题Since there are so many cars on the road, ______ many hours to complete a short journey at peak times in some major cites.Apeople will makeBwe may costCdriving should spend Dit can take
06-10
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问答题试述汇兑心理说的主要内容并予以分析。
06-10
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问答题试推导贸易乘数公式。
06-10
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问答题试推导两缺口模型并分析它的理论与实践意义。
06-10
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名词解释题一价定律
06-10
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名词解释题流动借贷
06-10
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问答题试分析本币对外贬值对进出口的影响机制。
06-10
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问答题试述国际收支失衡的调整。
06-10
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名词解释题关税壁垒与非关税壁垒
06-10
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名词解释题幼稚产业
06-10
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名词解释题国际收支
06-10
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名词解释题提供曲线
06-10
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名词解释题开放经济
06-10
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问答题In a supermarket, the aisles are numbered one to six from the entrance. Washing powder is next to bottles and it is not the first item you see when entering the supermarket. You will see the meat aisle before the bread aisle. Tins are two aisles before bottles and meat is four aisles after fruit. What is in the last aisle (aisle six)?
06-10
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问答题试分析国际收支状况反映的经济含义。
06-10
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单选题While _______ an efficiency test on an engine, certain precautions should be observed.AmakingBto makeCbeing made Dmade
06-10
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问答题For Einstein to become a modern icon, especially in America, required a total revision of the definition of a hero. Anti-intellectualism has been as integral a part of American culture as the drive for universal education, and the fact that both have existed concurrently may account for the low status of teachers. In America it is not enough to be smart; one must compensate for one's intelligence by also showing the canniness and real-world power of the cowboy and the pioneer. Einstein did this. He was the first modern intellectual superstar, and he won his stardom in the only way that Americans could accept—by dint of intuitive, not scholarly, intelligence and by having his thought applied to practical things, such as rockets and atom bombs.
06-10
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名词解释题固定汇率与浮动汇率
06-10
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单选题Customer: I think I’ll have the tomato soup to start._____ Waiter: Right. And would you like croutons in your soup? Customer: No, thank you. Waiter: How would you like your steak? Rare, medium or well done?AAnd I’d like some teaBAnd I’d also like a steak.CAnd perhaps some orange juice. DAnd I’d like to order now.
06-10
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名词解释题贸易乘数
06-10
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问答题Fuel Cells: 21st Century Electricity The 21st century’s leading energy source may very well depend on the development of a technology that was first discovered in 1839. Indeed, many experts believe that the future of electricity generation will not come from further refinement of solar, wind, coal or nuclear energy, but from fuel cells. Among the various types of fuel cells, the ceramic or solid oxide fuel cell promises to achieve the greatest efficiency of conversion of fossil fuels such as gas and coal to electricity while producing only very low levels of pollutants. To this end, a consortium comprising five leading organizations has established Ceramic Fuels Ltd, initially to expand fuel cell research and development and secondly, to bring the technology to commercial application. Ceramic fuel cells are electrochemical devices that directly convert fuels such as gasified coal or natural gas into electricity without the limitation of the Carnot cycle (an ideal thermodynamic cycle in which heat is taken onto a working fluid at a constant upper temperature and rejected at a constant lower temperature). In many respects, fuel cells work like batteries. As long as they are constantly supplied with fuel and oxidant, fuel cells can continuously produce power, removing the need for recharging. Fuel cells offer several advantages over traditional thermal power plants. The major difference between these two power generators is that the chemical energy of the fuel cell is converted directly to electrical power without intermediate conversion first to heat. The efficiency of a coal-fired thermal plant is typically in the range of 30%-35%. In a combined cycle gas turbine system running on natural gas, the maximum efficiency is in the range 45%-50%. Many experts believe high temperature fuel cells could reach efficiencies of 80%-85%. Ceramic fuel cells thus offer a more efficient and less polluting alternative to current power generation technologies. By-products from fuel cells are high quality heat, carbon dioxide and steam. The temperature of the exhaust gases is well above 500℃, meaning that solid oxide fuel cells are very attractive for electricity and heat generation as, in addition to supplying electricity, the leftover amounts of heat created during the process could be used to produce heat for industries, provide hot water supplies or warm buildings. Fuel cell technology is not new. In fact, the principles of fuel cell operation were first reported by British scientist Sir William Grove in 1839. His prototype used dilute sulphuric acid and operated at room temperature. Ceramic fuel cells developed much later, with the first one operating at 1000°C in 1937. Ceramic fuel cells offer many advantages over other energy systems: ● they have the potential to produce electricity efficient from several fuel sources ● they can generate large amounts of electricity ● they are relatively quick to install Fuel cell research and development is extremely competitive worldwide, with the USA, Japan and some European countries leading the charge to commercialize this promising technology. For instance, a Dutch Belgian company has developed a fuel cell for a Volkswagen van and is also working on a larger unit to power a bus. Additionally, a German company is working on a fuel cell for the European space shuttle program and for submarines, while a Canadian company is evaluating a fuel cell to be used in small buses. Recent reports point to promising large international markets for ceramic fuel cells. Prospects for fuel cells in South East Asian markets appear good. Several countries, including Indonesia, Thailand and The Philippines are expected to demonstrate high rates of growth in demand for power an encouraging situation for those countries quick enough to develop and commercialize fuel cell technology. Energy is a vital component of a technology-based society and the growing need for electricity generation by the most efficient method will ensure a promising future for ceramic fuel cell technology. The Ceramic Fuel Cells Ltd initiative represents a major collaborative venture between public and private sectors. It is envisaged that this venture will go a long way towards achieving a greater efficiency of energy use worldwide. Do the following statements reflect the claims of the writer in the Reading Passage? YES if the statement reflects the claims of the writer NO if the statement contradicts the claims of the writer NOT GIVEN if it is impossible to say what the writer thinks about this Statements: 1.Sir William Grove was a physicist. 2.Future transport vehicles may be powered by fuel cells. 3.European companies were first in the race to develop fuel cell technology. 4.Some rapidly developing South East Asian countries will soon market fuel cells. 5.Cooperation between private companies and governments will encourage wider use of efficient energy sources.
06-10
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单选题A: Look, it’s going to storm. Take my umbrella. B: ______AHow will you go home if you give it to me?BI have a raincoat in my office. Thanks anyway.CI think you need to use it yourself.DIt doesn’t matter. I will go without having your umbrella.
06-10
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名词解释题国际分工
06-10
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名词解释题国际经济学
06-10
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单选题Therefore, whoever tells a lie, however well intentioned he might be, _______ the consequences, however unforeseeable they were, and pay the penalty for them even in a civil tribunal.Awill step intoBshall run intoChave to abide byDmust answer for
06-10
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单选题Which of these statements is TRUE? AFive hostages were killed.BTwenty-five hostages were released.CNone of the hostages were shot.
06-10
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名词解释题偿债率
06-10
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名词解释题关税壁垒与非关税壁垒
06-10
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名词解释题一价定律
06-10
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问答题试说明国际收支表中经常账户的基本内容。
06-10
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问答题试推导两缺口模型并分析它的理论与实践意义。
06-10
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问答题You have read the following advertisement in a magazine. Recommend a Friend Do you know someone who meets the following criteria? ※ Has a keen interest in other cultures ※ Is able to work as part of a team ※ Has a range of practical skills (indoors or outdoors) ※ Is willing to endure unfamiliar environmental conditions An aid team is looking for people to help out with voluntary work scheme in undeveloped rural areas in my country. If there is someone you would like to recommend for this, please submit a formal proposal to the magazine, clearly addressing the criteria above and outlining the contributions that you feel this person would be able to make to a project of this kind. You have a close friend who wishes to participate in this project and you feel he or she would be very suitable. Please write a recommendation to the magazine. You should write no fewer than 100 words on the answer sheet.
06-10