单选题It can be inferred from the passage that by the eleventh century the Byzantine militaryforces

单选题Thepassagemainlyfocuseson______.A.theimportanceofTVB.thefunctionofTVC.theproductionofTVD.theevolutionofTV

单选题The building crane represents ______.

单选题How many different kinds of emotions do you feel? You may be (21) to find that it is very hard to specify all of them. Not only (22) hard to describe in words, they are difficult to (23) . As a result, two people rarely (24) all of them. However, there are a number of (25) emotions that most people experience. When we receive something that we want, or something happens (26) we like, we usually feel joy or happiness. Joy is a positive and powerful emotion, (27) for which we all strive. It is natural to want to be happy, and all of us (28) happiness. As a general (29) , joy occurs when we reach a (30) goal or obtain a desired object. (31) people often desire different goals and objects, it is (32) that one person may find joy in repairing an automobile, (33) another may find joy in solving a math problem. Of course, we often share (34) goals or interests, and therefore we can experience joy together. This may be in sports, in the arts, in learning, in raising a family, or in (35) being together. When we have difficulty (36) desired objects or reaching desired goals we experience (37) emotions such as anger and grief. When little things get in our way, we experience (38) frustrations or tensions. For example, if you are dressing to go out (39) a date, you may feel frustration when a zipper breaks or a button fails off. If you really want something to happen, and you feel it (40) happen, but someone or something stops it, you may become quite angry.

单选题The qualities of the goods sold by auction are______.

单选题 The building crane, which has become the most striking feature of the urban landscape in Switzerland, is beginning to alter the mountain landscape as well. Districts of the Swiss Alps, which up to now have consisted of only a few disconnected small communities content with selling cheese and milk, perhaps a little lumber and seed potatoes, are today becoming parts of planned, developing regions. The new highway, the new skylift, the new multi-nationally-owned hotel will diversify the economy and raise the standard of living in the mountain areas, or so many Swiss regional planners and government officials hope. The mountainous area of Switzerland, which accounts for nearly two-thirds of the total area of the country and only 12% of the total population, has always been the problem area. According to the last census in 1970, 750,000 people lived in the Swiss mountains. Compared with the rest of the country, incomes are lower, services are fewer, employment opportunities are more limited and populations are decreasing. In fact, in only one respect do mountain districts come out ahead. They have more farmers, which many people do not consider to be an advantage. 17% of the Swiss mountain population works in primary occupations, in contrast to only 8% of the total population of the country. The mountain farmers are {{U}}a special breed of men{{/U}}. They work at least twelve hours a day in topographical and weather conditions which kill most crops and which only a few animals will tolerate. About half of them work at some other jobs as well, leaving 'their wives and children to do the bulk of the farm work. In the Rhone Valley in the canton of Valais in south-western Swizerland nearly four-fifths of the farmers commute daily from their mountain farms to the large factories in the valley. In other parts of Switzerland this pattern of life is not as common, but almost everywhere n. on-farm wintertime employment is the rule. With all the difficulties inherent in working in the Swiss mountains, why should anyone resist any extension of the mountain economy? The answer, as Andress Werthemann, editor of the Swiss mountain agriculture magazine Alpwirtschafiliche Monatsblatter states, is that "when tourism becomes too massive, farming disappears". And basically there are three reasons why Switzerland needs its mountain farmers: they contribute to the food supply, they preserve the landscape, and they represent the Switzerland of nostalgia and holiday dreams. But in the real world, and especially in highly industrialized Switzerland where mountain farmers are aware of the "benefits" of city living, is it possible to maintain mountain agriculture and still solve the problems of mountain communities? The Swiss government has come to the conclusion that other kinds of employment in addition to farming must be emphasized. Yet whether it is possible to create other jobs that will not completely destroy agriculture is unknown.

单选题What method does the author mainly use in this passage to achieve better effects?

单选题U.S. health officials are increasing surveillance measures at doctors" offices and international borders to guard against the spread of swine flu. Washington also has begun dispersing medicine from a federal stockpile. The Centers for Disease Control and Prevention says there have been only mild cases of swine flu in the United States, but experts remain on guard. Acting agency director, Richard Besser, says the epidemic in Mexico prompted U.S. doctors to begin monitoring actively for possible infections. "We are asking doctors when they see someone who has flu-like illness who has traveled to an affected region, to do a culture, take a swab in the nose and send it to the lab so we can see: is it influenza, is it this type?" he said. Speaking Sunday at the White House, Besser said the extra detection efforts have enabled officials to find more infections than under normal circumstances. He also says he expects the number of infections will rise and the illness will spread to other U.S. regions, as doctors continue to monitor the problem. The Centers for Disease Control and Prevention says it does not recommend people travel to Mexico, where the outbreak of swine flu is centered and more than 100 deaths have been reported. But officials have not ordered a travel ban to the country. Homeland Security Secretary Janet Napolitano says, instead, airlines have the option of screening passengers on flights from Mexico. "We are letting air carders and our employees at the gates on those flights make sure that they are asking people if they are sick; and if they are sick, that they should not board the plane," she said. Denise Korniewicz, an infectious disease expert at the University of Miami, says officials should take bolder steps to screen passengers at international borders, as Japan and other Asian nations are doing. "We have a very transient population here. And Japan has taken a lot of precautions. What Japan is doing is they are making everyone take a temperature when they get off the airplane," she said. "As far as I am concerned, I think that is a good idea." U.S. officials say they are holding off on more aggressive actions because the outbreak has been limited in the United States and they do not want to cause a health scare. Korniewicz says around the country health centers are putting in place emergency response measures aimed at limiting disease outbreaks.

单选题Although the fuel consumption is greater in the northern hemisphere, temperatures there seem to be falling. This is ______. A. exclusively due to the effect of the inertia of the earth's climate B. partly due to variations in the output of solar energy C. mainly because the levels of carbon dioxide are rising D. possibly because the ice caps in the poles are melting

单选题A new cinema ______here next year. [A] will be built [B] is built [C] build

单选题Questions 11--13 are based on the passage about malls in the US. You now have 15 seconds to read Questions 11--13.

单选题How many people in front of the vehicles are killed or seriously injured every year?

单选题Howlongdoesamaster'sdegreetakeinSwitzerland?A.Oneyear.B.Twoyears.C.Threeyears.D.Fouryears.

单选题We learn from Paragraph 5 that