单选题 It is the staff of dreams and nightmares. Where Tony Blair's attempts to make Britain love the Euro have fallen on deaf ears, its incarnation as notes and coins will succeed. These will be used not just in the Euro area but in Britain. As the British become accustomed to the Euro as a cash currency, they will warm to it--paving the way for a yes note in a referendum. The idea of Euro creep appeals to both sides of the Euro argument. According to the pros, as Britons become familiar with the Euro, membership will start to look inevitable, so those in favor are bound to win. According to the antis, as Britons become familiar with the Euro, membership will start to look inevitable, so those opposed must mobilize for the fight. Dream or nightmare, Euro creep envisages the single currency worming its way first into the British economy and then into the affections of voters. British tourists will come back from their European holidays laden with Euros, which they will spend not just at airports but in high street shops. So, too, will foreign visitors. As the Earn becomes a parallel currency, those who make up the current two-o-one majority will change their minds. From there, it will be a short step to decide to dispense with the pound. Neil Kinnock, a European commissioner and former leader of the Labor Party, predicts that the Euro will soon become Britain's second currency. Hans Eichel, the German finance minister, also says that it will become a parallel currency in countries like Switzerland and Britain. Peter Hain, the European minister who is acting as a cheerleader for membership, says the Euro will become "a practical day-to-day reality and that will enable people to make a sensible decision about it". As many as a third of Britain's biggest retailers, such as Marks and Spencer, have said they will take Euros in some of their shops. BP has also announced that it will accept Euros at some of its garages. But there is less to this than meet the eye. British tourists can now withdraw money from cashpoint from European holiday destinations, so they are less likely than in the past to end up with excess foreign money. Even if they do, they generally get rid of it at the end of their holidays, says David Southwell, a spokesman for the British Retail Consortium (BRC).

单选题Which of the following happens if there is mild inflation?

单选题The chemist and Nobel Prize winner ______ seriously injured in a car accident.

单选题To say that his resignation was a shock would be an______-------it caused panie.

单选题Her dietician suggested that _____diet and moderate exercise would help her recover soon.

单选题Salt, and not oil, is______ in water.

单选题In fear for their lives and in______ of their freedom, thousands of enslaved women and children fled to the Northern States on the eve of the American Civil War.(2007年中国科学院考博试题)

单选题American people ignore cultural differences in other countries because ______.

单选题Scientists generally hold that language has been so long in use that the length of time writing is known to cover is ______in Comparison. A.overwhelming B.uninspiring C.astounding D.trifling

单选题 About twice every century, one of the massive stars in our galaxy blows itself apart in a supernova explosion that sends massive quantities of radiation and matter into space and generates shock waves that sweep through the arms (a narrow extension of a larger area, mass, or group) of the galaxy. The shock waves heat the interstellar gas, evaporate small clouds, and compress larger ones to the point at which they collapse under their own gravity to form new stars. The general picture that has been developed for the supernova explosion and its aftermath goes something like this. Throughout its evolution, a star is much like a leaky balloon. It keeps its equilibrium figure through a balance of internal pressure against the tendency to collapse under its own weight. The pressure is generated by nuclear reactions in the core of the star which must continually supply energy to balance the energy that leaks out in the form of radiation. Eventually the nuclear fuel is exhausted, and the pressure drops in the core. With nothing to hold it up, the matter in the center of the star collapses inward, creating higher and higher densities and temperatures, until the nuclei and electrons are fused into a super-dense lump of matter known as a neutron star. As the overlying layers rain down on the surface of the neutron star, the temperature rises, until with a blinding flash of radiation, the collapse is reversed. A thermonuclear shock wave runs through the now expanding stellar envelope, fusing lighter elements into heavier ones and producing a brilliant visual outburst that can be as intense as the light of 10 billion suns. The shell of matter thrown off by the explosion plows through the surrounding gas, producing an expanding bubble of hot gas, with gas temperatures in the millions of degrees. This gas will emit most of its energy at X-ray wavelengths, so it is not surprising that X-ray observatories have provided some of the most useful insights into the nature of the supernova phenomenon. More than twenty supernova remnants have now been detected in X-ray studies. Recent discoveries of meteorites with anomalous concentrations of certain isotopes indicate that a supernova might have precipitated the' birth of our solar system more than four and a half billion years ago, Although the cloud that collapsed to form the sun and the planets was composed primarily of hydrogen and helium, it also contained carbon, nitrogen, and oxygen, elements essential for life as we know it. Elements heavier than helium are manufactured deep in the interior of stars and would, for the most part, remain there if it were not for the cataclysmic supernova explosions that blow giant stars apart. Additionally, supernovas produce clouds of high- energy particles called cosmic rays. These high-energy particles continually bombard the earth and are responsible for many of the genetic mutations that are the driving force of the evolution of species.

单选题The letter said that there was an______, but I couldn' t find where it was.

单选题More and more people nowadays are exercising, {{U}}quitting{{/U}} tobacco, losing weight and becoming more health-conscious.

单选题Scarcely does anyone want to become janitors, but to be appointed as a {{U}}sanitary{{/U}} engineer is quite something else.

单选题"Smart Symptom Wizard" is capable of ______.

单选题As a professional doctor, I will prescribe ______ for the good of my patients according to my ability and my judgment and never do harm to anyone. A. regimen B. equity C. requisite D. regime

单选题"It was the beginning of a revolution in America and the world, a revolution that some have yet to acknowledge and many have yet to appreciate," says Harold Skramstad, president of the Henry Ford Museum in Dearborn, Michigan. 1776? No indeed: 1896, when Frank Duryea finally perfected the Duryea Motor, Wagon. At its first airing, the contraption rolled less than 100 metres before the transmission froze up. But by the end of 1896 Duryea had sold 13 of them, thus giving birth to the American motor industry. That industry (whose roots, outside America, are usually attributed to tinkerings by Messrs Daimler and Benz in Germany) is being celebrated hugely over the coming months, culminating with a Great American Crnise-in in Detroit in June. "Our goal is to attract the greatest collection of antique and classic cars this nation has ever seen in one place at one time," says Mr Skramstad modestly. Americans may indeed blame the car for almost everything that has happened to their country, and themselves, since 1896. The car has determined. The way they live. From cradle to grave, the car marks every rite of American passage. Home by car from the maternity ward; first driving licence (usually at the age of 16); first (backseat) sexual experience; first car of one's own (and the make of car is a prime determinant of social status, symbolic of everything a person is or does). In Las Vegas, and elsewhere, Americans can get married at drive-in chapels. They then buy, or lust after, a house with garages big enough for not one but two or three cars. This allocates more space to cars than to children. And when the time comes, they may lie in state at a drive-through funeral home, where you can pay your respects without pulling over. The way they shop. Main Street has been replaced by the strip mall and the shopping mall, concentrating consumer goods in an auto-friendly space. A large part of each shopping trip must now be spent, bags under chin, searching for the place where the car was left. (And another point: bags have annoyingly lost their carrying handles since shoppers ceased to be pedestrian) Since car-friendly living and shopping became the role, most built-up parts of America now look like every other part. There is simply no difference between a Burger Inn in California and one on the outskirts of Boston. The way they eat. A significant proportion of Americans' weekly meals are now consumed inside cars, sometimes while parked outside the (drive-by) eatery concerned, sometimes en route, which leads to painful spillages in laps, leading to overburdening of. The legal system. Dozens of laws have been written to deal with car cases, ranging from traffic disputes to product liability. Drive-by shootings require a car, as do most getaways. The car is a great crime accessory; and it also causes the deaths of nearly 40,000 Americans every year. Personal finances. Before the age of the car, few people went into debt; no need to borrow money to buy a horse. Now Americans tie themselves up with extended installment loans, and this in turn has spawned a whole financial industry. The wealth of the nation. By 1908, an estimated 485 different manufacturers were building cars in the United States. Employment grew nearly 100-fold in the industry during the first decade of the 20th century. When Henry Ford, in a stroke of genius, automated his production line he required a rush of new, unskilled labour, which he enticed by offering an unheard-of ＄5 a day in wages. Henceforth, workers could actually afford to buy what they built. And Americans never looked back. Today, the Big Three car manufacturers (Food, GM and Chrysler) generate more than ＄200 billion a year in business inside the United States. Directly and indirectly, the industry employs roughly one in seven workers. Every car job is reckoned to add ＄100,000 in goods and services to the economy, twice the national average. People occasionally suppose that the car is under attack as it enters its second century. Environmental regulators and transport planners (with their talk of car pools and subways) tend to give this impression. There are signs that personal computers may be replacing the sports car as the chief passion, and expense, of young men. But, in the end, nothing beats the idea of individual mobility. In a society that values freedom above all, the obvious way to celebrate a centenary is just to keep driving.

单选题According to the passage, the original proponents of the Fourteenth Amendment were primarily concerned with ______.