单选题An enlarged prostate may______ the bladder and pinch off the urethra, causing pain and difficulty with urination.(2003年西南财经大学考博试题)

单选题Wolves are said to howl at the moon when it is ______. A. round B. complete C. full D. whole

单选题The manager gave her his ______ that the complaint would be investigated.

单选题When they saw the pile of paper on the teacher's desk, the class made the______ that they would have written work.

单选题It is well-known that the retired workers in our country are ______ free medical care. [A] entitled to [B] involved in [C] associated with [D] assigned to

单选题While some bacteria are beneficial, others are ______in that they cause disease.

单选题Very soon, unimaginably powerful technologies will remake our lives. This could have dangerous consequences, especially because we may not even understand the basic science underlying them. There's a growing gap between our technological capability and our underlying scientific understanding. We can do very clever things with the technology of the future without necessarily understanding some of the science underneath, and that is very dangerous. The technologies that are particularly dangerous over the next hundred years are nanotechnology, artificial intelligence and biotechnology. The benefits they will bring are beyond doubt but they are potentially very dangerous. In the field of artificial intelligence there are prototype designs for something that might be 50,000 million times smarter than the human brain by the year 2010. The only thing not feasible in the film Terminator is that the people win. If you're fighting against technology that is that much smarter than you, you probably will not win. We've all heard of the grey goo problem that self-replicating nanotech devices might keep on replicating until the world has been reduced to sticky goo, and certainly in biotechnology, we've really got a big problem because it's converging with nanotechnology. Once you start mixing nanotech with organisms and you start feeding nanotech — enabled bacteria, we can go much further than the Borg in Star Trek, and those superhuman organisms might not like us very much. We are in a world now where science and commerce are increasingly bedfellows. The development of technology is happening in the context of global free trade regimes which see technological diffusion embedded with commerce as intrinsically a good. We should prepare for new and unfamiliar forms of argument around emerging technologies.

单选题During the nineteen years of his career, France Battiate has won the ______ of a wide audience outside Italy.

单选题It is often the children who truly lead the elders into America, the sons who take their fathers to their first baseball game or shepherd them to their first rock concert or give them a real sense that they______America's future.

单选题Providing first-class service is one of the tactics the airline adopts to attract passengers.

单选题Another popular misconception is the______that great talent is usually highly specific.(2003年南开大学考博试题)

单选题One of the prominent characteristics of a law is______ .

单选题When the colonel learned that headquarters had been unable to send him reinforcements, he ______ the order for the scheduled attack.

单选题The history of African Americans during the past 400 years is traditionally narrated (60) an ongoing struggle against (62) and indifference on the part of the American mainstream, and a struggle (63) as an upward movement is (64) toward ever more justice and opportunity. Technology in and of (65) is not at fault; it's much too simple to say that gunpowder or agricultural machinery or fiber optics (66) been the enemy of an (67) group of people. A certain machine is put (68) work in a certain wa—the purpose (69) which it was designed. The people who design the machines are not intent on unleashing chaos;they are usually trying to (70) a task more quickly, cleanly, or cheaply, (71) the imperative of innovation and efficiency that has ruled Western civilization (72) the Renaissance. Mastery of technology is second only (73) money as the true measure of accomplishment in this country, and it is very likely that by (74) this under-representation in the technological realm, and by not questioning and examining the folkways that have (75) it, blacks are allowing (76) to be kept out of the mainstream once again. This time,however, they will be (77) from the greatest cash engine of the twenty-first century. Inner-city blacks in particular are in danger, and the beautiful suburbs (78) ring the decay of Hartford, shed the past and learn to exist without contemplating or encountering the tragedy of the inner city. And blacks must change as well. The ways that (79) their ancestors through captivity and coming to freedom have begun to loose their utility. If blacks (80) to survive as full participants in this society, they have to understand what works now.

单选题A laser beam is used to ______even the hardest substance.

单选题The sizzling streams of sunlight were just beautifully glimmering down on the crisp green schoolyard. Such a wonderful day that was. Nothing could have ruined it. Little Jimmy, since it was such a wonderful day, decided to go to the corner store and buy himself a little treat. As Jimmy started walking over to the store, clouds flocked over the dazzling sun and the sudden pitch dark meant no trouble. On the other side of the road were three white boys from Jimmy's same school. Upon recognizing Jimmy, the boys ran over the street to where he was."Hey Negro, what's up?" one of the white boys said."Did your mamma pack you enough to eat today?" another hooted."Just leave me alone," little Jimmy said."Oh no, Jimmy's really getting pist off! ?" the first boy retaliated."Just shove off and let me be," Jimmy answered. It is like this everyday, everywhere, and every time, people suffer discrimination. All because they have differences amongst each other. Different beliefs, different cultures, different skin colors, all of these act like building blocks to help construct what we know as Racism. Racism has become one of the many burdens amongst multi-cultural worlds like Canada and the States. Racism is a part of each and every one of us. No doubt, we are all racist, but the term racism has been used too loosely. Racism has been mutated to such an extent that it could be a reason for war, a symbol of terrorism, and even an excuse for neglecting. Is that all there is to it? No, actually it is just the beginning. Racism is just like warfare in which there is no shelter and nobody is neutral. Nobody is exempt from this demon. He has haunted us with a bitter curse. On one occasion I remember, nobody would play with me at school. I would walk around by myself and ask people if we could play together. Everywhere that I went, like the process of induction, everyone would avoid me. Like two inducted poles with the same polarity, they would just shimmer off into the distance and continue to do whatever they're doing. Because of racial differences, they neglect me. People are afraid of the unknown, and it is this difference amongst people that spread rumors and distrust amongst people. Corrupting our thoughts and reasons, we get accustomed to thinking differences are omens. Amongst smaller kids, there is no difficulty in getting them to all play together. Their thoughts are not totally corrupted as others. Probably the demon has no time to bother with smaller children.

单选题As ordinary people, scientists are by no means more honest or ______ than other people, but as scientists, they attach special value to honesty while they are in their working sphere. A. ethical B. ethnic C. aesthetic D. esthetic

单选题The issue of the movie is displayed around ______.

单选题To save money for my education, mother often took on more work than______ for her.

单选题He (looked) (a little bit) nervous, (that) could be seen from his (facial expression).