单选题Some historians say that the most important contribution of Dwight Eisenhower's presidency (总统任期 ) in the 1950s was the U.S. interstate highway system. It was a (1) project, easily surpassing the scale of such previous human (2) as the Panama Canal. Eisenhower's interstate highways (3) the nation together in new ways and (4) major economic growth by making commerce less (5) . Today, an information superhighway has been built—an electronic network that (6) libraries, corporations, government agencies and (7) . This electronic superhighway is called the Internet, (8) it is the backbone (主干) of the World Wide Web. The Internet had its (9) in a 1969 U.S. Defense Department computer network called ARPAnet, which (10) Advanced Research Projects Agency Network. The Pentagon built the network for military contractors and universities doing military research to (11) information. In 1983 the National Science Foundation (NSF) , (12) mission is to promote science, took over. This new NSF network (13) more and more institutional users, many of (14) had their own internal networks. For example, most universities that (15) the NSF network had intra-campus computer networks. The NSF network (16) became a connector for thousands of other networks. (17) a backbone system that interconnects networks, Internet was a name that fit. So we can see that the Internet is the wired infrastructure (基础设施) on which web (18) move. It began as a military communication system, which expanded into a government-funded (19) 19 research network. Today, the Internet is a user-financed system tying institutions of many sorts together (20) an "information superhighway".

单选题The Olympic Games were watched by ______ billions of people around the world. A. virtually B. literally C deliberately D. appropriately

单选题"I missed the train home last night.""So ______"

单选题Between 1900 and 1912, the nations of Europe were at peace. But there were hostilities, rivalries, and conflicts brewing that would soon tear the whole continent apart. The great conflict was World War Ⅰ. (1) just prior to that war, there were two (2) conflicts in the Balkan Peninsula. These two short wars took place in 1912 and 1913. Their (3) result was to end the (4) of the Turkish Ottoman Empire in Europe. The more tragic (5) of the Balkan Wars was to heighten the already fierce international tensions that were (6) the nations of Europe toward World War Ⅰ.In 1912 the Balkan nations (7) of Bosnia, Herzegovina, Montenegro, Serbia, Romania, Bulgaria, and Greece. The Macedonian region in northern Greece was under the (8) of the Turks. The Balkan lands were also peopled by many intensely nationalistic ethnic groups. Among these were Serbs, Croats, Slovenes, Bulgars and Macedonians. These peoples had long been fierce rivals for territory and political (9) . Religious (10) between Roman Catholics and Eastern Orthodox Christians within these groups further added to their disputes. These rivalries still (11) . Serbia, Bulgaria, Greece, and Montenegro formed the Balkan League in 1912. In October 1912 the Balkan League (12) war (13) the Ottoman Turks. The Balkan (14) were quickly victorious. They won battles (15) Skopje, Monastir and other cities. The war ended in December. In May 1913 a treaty signed in London formally (16) the conflict. The Turks lost most of their European (17) . (18) , the peace did not last. In June 1913 Bulgaria attacked Serbia and Greece. This (19) conflict was ended by a (20) signed in Bucharest in August 1913.

单选题He said it would not be all that difficult to reach a peaceful conclusion to the ______.

单选题She was very happy. She ran ______ of all the runners. A. fastest B. the quickest C. slowest D. quickly

单选题If you want to change for a double room, youll have to pay ______ ＄15． A．another B．other C．more D．each

单选题"Is George really leaving the university?" "Yes. But would you mind ______ to anyone?" A. not mentioning it B. not to mention it C. not mention it D. not to mentioning it

单选题When he lost his jobs he tried to ______ his fortunes by robbing a bank. [A] revive [B] retrieve [C] rectify [D] recycle

单选题The two delegates had an in-depth exchange of views on how to enhance their______ cooperation.(2002年中国人民大学考博试题)

单选题As a teacher, Henry is ______ awakening his students to the joys of education.

单选题We all know that the normal human daily cycle of activity is of some 748 hours' sleep alternating with some 16,417 hours' wakefulness and that, broadly speaking, the sleep normally coincides with the hours of darkness. Our present concern is with how easily and to what extent this cycle can be modified. The question is no mere academic one. The ease, for example, with which people can change from working in the day to working at night is a question of growing importance in industry where automation calls for round the-clock working of machines. It normally takes from five days to one week for a person to adapt to a reversed routine of sleep and wakeful-ness, sleeping during the day and working at night. Unfortunately, it is often the case in industry that shifts are changed every week: a person may work from 12 midnight to 8 a. m. one week, 8 a. m. to 4 p. m. the next, and 4 p. m. to 12 midnight the third and so on. This means that no sooner has he got used to one routine than he has to change to an- other, so that much of his time is spent neither working nor sleeping very efficiently. The only real solution appears to be to hand over the night shift to a number of permanent night workers. An interesting study of the domestic life and health of night shift workers was carried out by Brown in 1957. She found a high incidence of disturbed sleep and other disorders among those on alternating day and night shifts, but no abnormal occurrence of these phenomena among those on permanent night work. This latter system then appears to be the best long-term policy, but meanwhile some- thing may be done to relieve the strains of alternate day and night work by selecting those people who can adapt most quickly to the changes of routine. One way of knowing when a person has adapted is by measuring his body temperature. People engaged in normal day- time work will have a high temperature during the hours of wakefulness and a low one at night; when they change to night work the pattern will only adjust gradually back to match the new routine and the speed with which it does so parallels, broadly speaking, the adaptation of the body as a whole, particularly in terms of performance. Therefore, by taking body temperature at intervals of two hours throughout the period of wakefulness it can be seen how quickly a person can adapt to a reversed routine, and this could be used as a basis for Selection. So far, however, such a form of selection does not seem to have been applied in practice.

单选题______ he is right or wrong does not concern us.

单选题______ today, he would get there by Friday. A. Would he leave B. If he leaves C. Was he leaving D. Were he to leave

单选题Pulling heavy suitcases all day in the summer is hard work, especially when you're a thin 14-year- old. That was me in 1940—the youngest and smallest baggage boy at New York City's Pennsylvania Railway Station. After just a few days on the job, I began noticing that the other fellows were overcharging passengers. I'd like to join them, thinking, "Everyone else is doing it." When I got home that night, I told my dad what I wanted to do. "You give an honest day's work," he said, looking at me straight in the eye. "They're paying you. If they want to do that, you let them do that." I followed my dad's advice for the rest of that summer and have lived by his words ever since. Of all the jobs I've had, it was my experience at Pennsylvania Railway Station that has stuck with me. Now I teach my players to have respect for other people and their possessions. Being a member of a team is a totally shared experience. If one person steals, it destroys trust and hurts everyone. I can put up with many things, but not with people who steal. If one of my players were caught stealing, he'd be gone. Whether you're on a sports team, in an office or a member of a family, if you can't trust one another, there's going to be trouble.