单选题The first serious prospect of a cure for Aids_____ a treatment which delays its effects ha emerged

单选题It is estimated that, currently, about 50000 species become ______ every year.

单选题Nationally, an ageing population is a problem. But locally it can be a boon. The over-50s control 80% of Britain"s wealth, and like to spend it on houses and high-street shopping. The young "generation rent", by contrast, is poor, distractible and liable to shop online. People aged between 50 and 74 spend twice as much as the under-30s on cinema tickets. Between 2000 and 2010 restaurant spending by those aged 65-74 increased by 33%, while the under-30s spent 18% less. And while the young still struggle to find work, older people are retiring later. During the financial crisis full-time employment fell for every age group but the over-65s, and there has been a rash of older entrepreneurs. Pensioners also support the working population by volunteering: some 100 retirees in Christchurch help out as business mentors. Even if they wanted to, most small towns and cities could not capture the cool kids. Mobile young professionals cluster, and greatly prefer to cluster in London. Even supposed meccas like Manchester are ageing: clubs in that city are becoming members-only. Towns that aim too young, like Bracknell and Chippenham, can find their high streets full of closed La Senzas (a lingerie chain) and struggling tattoo parlours. Companies often lag behind local authorities in working this out. They are London-obsessed, and have been slow to appreciate the growing economic heft of the old—who are assumed, often wrongly, to stick with products they learned to love in their youth. But Caroyln Freeman of Revelation Marketing reckons Britain could be on the verge of a marketing surge directed at the grey pound, "similar to what we saw with the pink". The window will not remain open forever: soon the baby boomers will start to ail, and no one else alive today is likely to have such a rich retirement. Meanwhile, with the over-50s holding the purse strings, the towns that draw them are likely to grow more and more pleasant. Decent restaurants and nice shops spring up in the favoured haunts of the old, just as they do in the trendy, revamped boroughs of London. Latimer House, a Christchurch furniture store full of retro clothing and 1940s music, would not look out of place in Hackney. Improved high streets then entice customers of all ages. Indeed, gentrification and gerontification can look remarkably similar. Old folk and young hipsters are similarly fond of vinyl and typewriters, and wander about in outsized spectacles. Some people never lose their edge.

单选题The pianist played beautifully, showing a real _____ for the music

单选题A.18B.33C.36D.42E.45

单选题Intherectangularquadrantsystemshownabove,whichquadrant,ifany,containsnopoint(x,y)thatsatisfiestheequationx2-2y=3?A.noneB.ⅠC.ⅡD.ⅢE.Ⅳ

单选题If x is 20 percent greater than 88, then x= A. 68 B. 70.4 C. 86 D. 105.6 E. 108

单选题Art, like words, is a form of communication. Words, spoken and written, render accessible to humans of the latest generations all the knowledge discovered by the experience and reflection, both of preceding generations and of the best and foremost minds of their own times. Art renders accessible to people of the latest generations all the feelings experienced by their predecessors, and those already felt by their best and foremost contemporaries. Just as the evolution of knowledge proceeds by dislodging and replacing that which is mistaken, so to the evolution of feeling proceeds through art. Feelings less kind and less necessary for the well-being of humankind are replaced by others kinder and more essential to that end. This is the purpose of art, and the more art fulfills that purpose the better the art; the less it fulfills it, the worse the art.

单选题The following questions present a sentence, part of which or all of which is underlined. Beneath the sentence, you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is best, choose the first answer; otherwise choose one of the others. These questions test correctness and effectiveness of expression. In choosing your answer, follow the requirements of standard written English; that is, pay attention to grammar, choice of words, and sentence construction. Choose the answer that produces the most effective sentence; this answer should be clear and exact, without awkwardness, ambiguity, redundancy, or grammatical error.

单选题anomalous

单选题In fisheries in general, when a large harvest is taken one year, there will be fewer fish available to be harvested in the following year, leading to decreasing yields of most fish species over time. The Maine lobster is an anomaly, however. Even though the vast number of lobster traps covering the New England coast pull in more lobsters every year, the number of lobsters in the water has shown no signs of decreasing. Which of the following, if true, most helps to explain the apparent anomaly concerning the number of Maine lobsters? A. The decline of other fish species in the region has deprived the lobster of its natural food source of scavenged fish. B. The bait in lobster traps provides abundant food for young lobsters, which are still small enough to swim out of the traps, leading to much higher survival rates among young lobsters than would be expected in nature. C. As global warming heats the waters of the Atlantic coastline, the Maine lobster has extended its northern range to well past Nova Scotia. D. The ever-increasing demand for lobsters in seafood restaurants and steakhouses across the country has driven a corresponding increase in the supply of the product. E. The increased lobster harvest has resulted in many juvenile lobsters but very few breeding-age lobsters, which could result in a crash in lobster numbers in the near future.

单选题The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether Ａ. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. Ｂ. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. Ｃ. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. Ｄ. EACH statement ALONE is sufficient. Ｅ. Statements (1) and (2) TOGETHER are NOT sufficient.

单选题A restaurant orders 150 kg of pumpkins from the farmer's market. The farmer fills the order with 23 pumpkins. The average mass of the first 20 pumpkins is 6.5 kg. What must be the minimum average mass of the remaining 3 pumpkins to fill the order? A. 5.5 kg B. 5.67 kg C. 6.67 kg D. 7 kg E. 11.5 kg

单选题The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether Ａ. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. Ｂ. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. Ｃ. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. Ｄ. EACH statement ALONE is sufficient. Ｅ. Statements (1) and (2) TOGETHER are NOT sufficient.

单选题Which is NOT a form of sound patterning in analyzing the language in poetry? A. Rhyme. B. Alliteration. C. Constancy. D. Reverse rhyme.

单选题When Greenville State University decided to move its fine arts collection to a new library, it had to package the collection in 20-inch by 20-inch by 15-inch boxes. If the university pays $0.50 for every box, and if the university needs 3.6 million cubic inches to package the collection, what is the minimum amount the university must spend on boxes? A. $255 B. $275 C. $510 D. $1,250 E. $2,550

单选题Ashewasgettingold,hismemoryofthepastbeganto_______.

单选题It"s often a mistake to ______ appearance: that poor-looking individual is anything but poor. In fact, there is the President of a large multinational corporation with a fortune of 10 billion dollars.

单选题Whichofthefollowingisnotabranchofgenerallinguistics?

单选题Idlers, no matter how poor they are, are always ______ at finding reasons not to take action to improve their living conditions. A. intrinsic B. ingenious C. initial D. inherent