单选题The market for non-food GE products could exceed the market for GE food products by a wide______within the next few years.

单选题However, growth in the fabricated metals industry was able to ______ some of the decline in the iron and steel industry. A. overturn B. overtake C. offset D. oppress

单选题During the rainy season the Mississippi River may carry away hundreds of acres of valuable topsoil from one area and arbitrarily deposit it in another. A. subsequently B. lawfully C. mercilessly D. randomly

单选题If you want to go to the concert, you"ll have to make a ______ ,or there will be no tickets.

单选题The man was deported for his ______ acts.

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The full ______ of changes in computer technology will be felt within the next few years.(2002年春季上海交通大学考博试题)

单选题We are going to ______ our house by building another room on to it.

单选题Go and sec what your mother is______now.(2013年厦门大学考博试题)

单选题He would rather ______ part in such dishonest business deals.

单选题Until men invented ways of staying underwater for more than a few minutes, the wonders of the world below the surface of the sea were almost unknown. The main problem, of course, lies in air. How could air be supplied to swimmers below the surface of the sea? Pictures made about 2, 900 years ago in Asia show men swimming under the surface with air bags tied to their bodies. A pipe from the bag carried air into the swimmer's mourn. But little progress was achieved in the invention of diving devices until about 1490, when the famous Italian painter, Leonardo da Vinci, designed a complete diving suit. In 1680, an Italian professor invented a large air bag with a glass window to be worn over the diver's head. To "clean" the air a breathing pipe went from the air bag, through another bag to remove moisture, and then again to the large air bag. The plan did not work, but it gave later inventors the idea of moving air around in diving devices. In 1819, a German, Augustus Siebe, developed a way of forcing air into the head-covering by a machine operated above the water. Finally, in 1837, he invented the " hard-hat suit" was to be used for nearly a century. It had a metal covering for the head and an air pipe attached to a machine above the water. It also had small openings to remove unwanted air. But mere were two dangers to the diver inside the " hard-hat suit". One was the sudden rise to the surface, caused by a too great supply of air. The other was me crushing of the body, caused by a sudden diving into deep water. The sudden rise to the surface could kill me diver; a sudden dive could force his body up into the helmet, which could also result in death. Gradually the "hard-hat suit" was improved so mat the diver could be given a constant supply of air. The diver could men move around under me ocean without worrying about the air supply. During the 1940s diving underwater without a special suit became popular. Instead, divers used a breaming device and a small covering made of rubber and glass over parts of the face. To improve the swimmer's speed another new invention was used: a piece of rubber shaped like a giant foot, which was attached to each of me diver's own feet. The manufacture of rubber breathing pipes made it possible for divers to float on the surface of the water, observing the marine life underneam them. A special rubber suit enabled them to stay in cold water for long periods, collecting specimens of animal and vegetable life mat had never been obtained in the past. The most important advance, however, was the invention of a self-contained underwater breathing apparatus, which is called a " sucba". Invented by two Frenchmen, Jacques Cousteau and Emile Gagnan, the scuba consists of a mouthpiece joined to one or two tanks of compressed air which are attached to me diver's back. The scuba makes it possible for a diver-scientist to work 200 feet underwater or even deeper for several hours. As a result, scientists can now move around freely at great depths, learning about me wonders of the sea.

单选题The opinion polls (were showing) 76 percent of (the responders) more concerned about the shambles of (American education) than about any other problem (on) the political agend

单选题A great amount of work has gone into______the Cathedral to its previous splendor.

单选题It is hard to imagine that this apparently______ professor was a drugpusher.

单选题We are meant to live dangerously and should not be sheltered. Life is a perilous adventure; its richness is in its ______.

单选题There is some evidence that cells could be carefully ______ and then injected into the brain of Parkinson's patients to replace damaged brain cells. A. damaged B. decided C. adjusted D. disturbed

单选题So ______ was the mood of the meeting that an agreement was soon reached. (2003年复旦大学考博试题)

单选题He will______resign in view of the complete failure of the research project.

单选题______does business with that fellow is bound to lose money.