单选题Most of the flights have a baggage______of 44lbs per passenger.

单选题Their view that women are the natural ______ of morality is not my view.

单选题One can understand others much better by noting the immediate and fleeting reactions of their eyes and ______ to expressed thoughts.

单选题It was clear that the storm ______ his arrival by two hours. A. retarded B. retrieved C. refrained D. retreated

单选题 Computerized design, advancfed materials and new technologies are being used to produce machines of a type never seen before. It looks as if it came straight from the set of Star Wars. It has four-wheel drive and rises above rocky surfaces. It lowers and raises its nose when going up and down hills. And when it comes to a river, it turns amphibious: two hydrojets power it along by blasting water under its body. There is room for two passengers and a driver, who sit inside a glass bubble operating electronic, aircraft-type controls. A vehicle so daring on land and water needs windscreen wipers--but it doesn't have any. Water molecules are disintegrated on the screen's surface by ultrasonic sensors. This unusual vehicle is the Racoon. It is an invention not of Hollywood but of Renault, a rather conservative French state-owned carmaker, better known for its family hatchbacks. Renault built the Racoon to explore new freedoms for designers and engineers created by advances in materials and manufacturing processes. Renault is thinking about startlingly different cars; other producers have radical new ideas for trains, boats and aeroplanes. The first of the new freedoms is in design. Powerful computer-aided design (CAD) systems can replace with a click of a computer mouse hours of laborious work done on thousands of drawing boards. So new products, no matter how complicated, can be developed much faster. For the first time, Boeing will not have to build a giant replica of its new airliner, the 777, to make sure all the bits fit together. Its CAD sys- tem will take care of that. But Renault is taking CAD further. It claims the Racoon is the world's first vehicle to be designed within the digitized world of virtual reality. Complex programs were used to imitate the vehicle and the land that it was expected to cross. This allowed a team led by Patrick Le Qucment, Renault's industrial-design director, to "drive" it long before a prototype existed. Renault is not alone in thinking that virtual reality will transform automotive de- sign. In Detroit, Ford is also investigating its potential. Jack Telnac, the firm's bead of design, would like designers in different parts of the world to work more closely together, linked by computers. They would do more than style cares. Virtual reality will allow engineers to peer inside the working parts of a vehicle. Designers will watch bearings move, oil flow, gears mesh and hydraulics pump. As these techniques catch on, even stranger vehicles are likely to come along. Transforming these creations from virtual reality to actual reality will also become easier, especially with advances in materials. Firms that once bashed everything out of steel now find that new alloys of composite materials (which can be made from mixtures of plastic, resin, ceramics and metals, reinforced with fibers such as glass of carbon) are changing the rules of manufacturing. At the same time, old materials keep getting better, as their producers try to secure their place in the factory of the future. This competition is increasing the pace of development of all materials. With composites, it is possible to build many different parts into a single component. Fiat, Italy's biggest car maker has worked out that it could reduce the number of components needed in one of its car bodies from 150 to 16 by using a composite shell rather than one made of steel. Aircraft and cars may increasingly be assembled as if they were plastic kits.

单选题Having finished their morning work, the clerks stood up behind their desks, ______ themselves.

单选题The ocean bottom, a region nearly 2.5 times greater than the total land area of the Earth, is a vast frontier that even today is largely unexplored and uncharted. Until about a century ago, the deep-ocean floor was completely inaccessible, hidden beneath waters averaging over 3 600 meters deep. Totally without light and subjected to intense pressures hundreds of times greater than at the Earth's surface, the deep ocean bottom is a hostile environment to humans, in some ways as forbidding and remote as the void of outer space. Although researchers have taken samples of deep-ocean rocks and sediments for over a century, the first detailed global investigation of the ocean bottom did not actually start until 1968, with the beginning of the National Science Foundation's Deep Sea Drilling Project (DSDP). Using techniques first developed for the offshore oil and gas industry, the DSDP's drill ship, the Glomar Challenger, was able to maintain a steady position on the ocean's surface and drill in very deep waters, extracting samples of sediments and rocks from the ocean floor. The Glomar Challenger completed 96 voyages in a 15-year research program that ended in November 1983, During this time, the vessel logged 600 000 kilometers and took almost 20 000 core samples of seabed sediments and rocks at 624 drilling sites around the world. The Glomar Challenger's core samples have allowed geologists to reconstruct what the planet looked like hundreds of millions of years ago and to calculate what it will probably lo0k like millions of years in the future. Today, largely on the strength of evidence gathered during the Glomar Challenger's voyages, nearly all earth scientists agree on the theories of plate tectonics and continental drift that explain many of the geological processes that shape the Earth. The cores of sediment drilled by the Glomar Challenger have also yielded information critical to understanding the world's past climates. Deep-ocean sediments provide a climatic record stretching back hundreds of millions of years, because they are largely isolated from the mechanical erosion and the intense chemical and biological activity that rapidly destroy much land-based evidence of past climates. This record has already provided insights into the patterns and causes of past climatic change information that may be used to predict future climates.

单选题He was ______ to steal the money when he saw it lying on the table. A. dragged B. tempted C. elicited D. attracted

单选题Woodrow Wilson was referring to the liberal idea of the economic market when he said that the free enterprise system is the most efficient economic system. Maximum freedom means maximum productiveness; our "openness" is to be the measure of our stability. Fascination with this ideal has made Americans defy the "Old World" categories of settled possessiveness versus unsettling deprivation, the cupidity of retention versus the cupidity of seizure, a "status quo" defended or attacked. The United States, it was believed, had no status quo ante. Our only "station" was the turning of a stationary wheel, spinning faster and faster. We did not base our system on property but opportunity—which meant we based it not on stability but on mobility. The more things changed, that is, the more rapidly the wheel turned, the steadier we would be. The conventional picture of class polities is composed of the Haves, who want a stability to keep what they have, and the Have-nots, who want a touch of instability and change in which to scramble for the things they have not. But Americans imagined a condition in which speculators, self-makers, runners are always using the new opportunities given by our land. These economic leaders (front-runners) would thus be mainly agents of change. The nonstarters were considered the ones who wanted stability, a strong referee to give them some position in the race, a regulative hand to calm manic speculation; an authority that can call things to a halt, begin things again from compensatorily staggered "starting lines". "Reform" in America has been sterile because it can imagine no change except through the extension of this metaphor of a race, wider inclusion of competitors, "a piece of the action", as it were, for the disenfranchised. There is no attempt to call off the race. Since our only stability is change, America seems not to honor the quiet work that achieves social interdependence and stability. There is, in our legends, no heroism of the office clerk, no stable industrial work force of the people who actually make the system work. There is no pride in being an employee (Wilson asked for a return to the time when everyone was an employer). There has been no boasting about our social workers—they are merely signs of the system's failure, of opportunity denied or not taken, of things to be eliminated. We have no pride in our growing interdependence, in the fact that our system can serve others, that we are able to help those in need; empty boasts from the past make us ashamed of our present achievements, make us try to forget or deny them, move away from them. There is no honor but in the Wonderland race we must all run, all trying to win, none winning in the end (for there is no end).

单选题By such demarcation, strong, representative national societies can then be left to do what they do best--______young scientists' development at national meetings, and represent their disciplines at the national level. A. foster B. founder C. found D. foul

单选题The once separate issue of environment and development are now ______ linked. A. intangible B. indispensable C. inextricably D. incredibly

单选题{{B}}Directions:{{/B}} Choose the word that best completes the meaning. One of the basic characteristics of capitalism is the private ownership of the major means of production—capital. The ownership of large amounts of capital can bring{{U}} (41) {{/U}}profits, as well as economic and political power. Some recent theorists, {{U}}(42) {{/U}}have argued that our society has moved to a new stage of{{U}} (43) {{/U}}that they call "postindustrial" society. One important change in such society is that the ownership of{{U}} (44) {{/U}}amounts of capital is no longer the only or even the most important{{U}} (45) {{/U}}of profits and influence; knowledge as well as{{U}} (46) {{/U}}capital brings profits and influence. There are many{{U}} (47) {{/U}}with the thesis above, not the least of{{U}} (48) {{/U}}is that wealthy capitalists can buy the experts and knowledge they need to keep their profits and influence, but this does not{{U}} (49) {{/U}}the importance of knowledge in an advanced industrial society, as the{{U}} (50) {{/U}}of some new industries indicates. {{U}}(51) {{/U}}, genetic engineering and the new computer technology have{{U}} (52) {{/U}}many new firms and made some scientists quite rich. In{{U}} (53) {{/U}}with criticism of the postindustrial society thesis, however, it must also be{{U}} (54) {{/U}}that those already in control of huge amounts of capital (i. e., major corporations) soon{{U}} (55) {{/U}}to take most profits in these industries based on new knowledge. Moving down from the level of wealth and power, we still find knowledge increasingly{{U}} (56) {{/U}}. Many new high-tech jobs are being created at the upper-skill, low-paying service{{U}} (57) {{/U}}. Something like a caste line is emerging centered around knowledge. Individuals who fall too far behind in the{{U}} (58) {{/U}}of knowledge at a young age will find it almost impossible to catch up later, no matter how hard they try. Illiteracy in English language has been a severe{{U}} (59) {{/U}}for many years in the United States, but we are also moving to the point when computer illiteracy will hinder many more people and{{U}} (60) {{/U}}them to a life of low-skill and low-paid labor.

单选题You might as well give in, because your position is ______.

单选题The unfortunate death of the genius poet caused ______ loss to this country.

单选题In the______of the project not being a success, the investors stand to lose up to ﹩30 million. A. face B. time C. event D. course

单选题The United States is often considered a young nation, but in fact it is next to the oldest continuous government in the world, and the reason is that its people have always been willing to accommodate themselves to change. It should be realized, however, that sharing benefits of our achievements was the result of trial and error. Unprincipled businessmen had first to be restrained by government before they came to learn that they must serve the general good in pursuing their economic interests. Thus, although early statesmen strongly believed in private enterprise, they chose to make the post office a government monopoly and to give the schools to public ownership. Since then, government has broadened its activities in many ways including preventing monopolies from taking over the economy. Increased growth by acquisition by our largest corporations has resulted in a situation where virtually independent economic giants will dominate the American economy. Growth of these vast corporate structures, even though accompanied by an increase in the number of much smaller and less powerful companies that operate under their control, foretells the creation of monopoly—like structures throughout American business. In general, the major acquisitions by the sample companies were corporate organizations that were profitable and successful before acquisition. The main effect of the merger or acquisition was to transfer control and management of an already successful enterprise to a new group. Profitability ratios indicate that, in most instances, the acquired companies operated less efficiently after acquisition. Americans hold with Lincoln that "the legitimate object of government is to do for a community of people whatever they need to have done but cannot do at all, or cannot do so well for themselves, in their separate and individual capacities." Clearly merger restriction is one example of legitimate government intervention.