单选题If Finn was 18 months old one year ago, how old was he, in months, x months ago? A. x-30 B. x-12 C. 18-x D. 24-x E. 30-x

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. Yon 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The outbreak of swine flu that was first detected in Mexico was declared a global epidemic on June 11, 2009. It is the first worldwide epidemic 1 by the World Health Organization in 41 years. The heightened alert 2 an emergency meeting with flu experts in Geneva that assembled after a sharp rise in cases in Australia, and rising 3 in Britain, Japan, Chile and elsewhere. But the epidemic is " 4 " in severity, according to Margaret Chan, the organization"s director general, 5 the overwhelming majority of patients experiencing only mild symptoms and a full recovery, often in the 6 of any medical treatment. The outbreak came to global 7 in late April 2009, when Mexican authorities noted an unusually large number of hospitalizations and deaths 8 healthy adults. As much of Mexico City shut down at the height of a panic, cases began to 9 in New York City, the southwestern United States and around the world. In the United States, new cases seemed to fade 10 warmer weather arrived. But in late September 2009, officials reported there was 11 flu activity in almost every state and that virtually all the 12 tested are the new swine flu, also known as (A)H1N1, not seasonal flu. In the U. S., it has 13 more than one million people, and caused more than 600 deaths and more than 6,000 hospitalizations. Federal health officials 14 Tamiflu for children from the national stockpile and began 15 orders from the states for the new swine flu vaccine. The new vaccine, which is different from the annual flu vaccine, is 16 ahead of expectations. More than three million doses were to be made available in early October 2009, though most of those 17 doses were of the FluMist nasal spray type, which is not 18 for pregnant women, people over 50 or those with breathing difficulties, heart disease or several other 19 . But it was still possible to vaccinate people in other high-risk groups: health care workers, people 20 infants and healthy young people.

单选题What is the author's attitude towards working irregular hours?

单选题[Focus on a conversational principle] A. quantity B. manner C. approbation D. quality

单选题[Focusonmannerofarticulation]

单选题But over the course of a friendship, even the best people make mistakes. A relationship can ______ to stand still if the offender refuses to make the first move at reconciliation

单选题No woman can be too rich or too thin. This saying often attributed to the late Duchess of Windsor embodies much of the odd spirits of our time. Being thin is deemed as such a virtue. The problem with such a view is that some people actually attempt to live by it. I myself have fantasies of slipping into narrow designer clothes. Consequently, I have been on a diet for the better—or worse—art of my life. Being rich wouldn"t be bad either, but that won"t happen unless an unknown relative dies suddenly in some distant land, leaving me millions of dollars. Where did we go off the track? When did eating butter become a sin, and a little bit of extra flesh unappealing, if not repellent? All religions have certain days when people refrain from eating, and excessive eating is one of Christianity"s seven deadly sins. However, until quite recently, most people had a problem getting enough to eat. In some religious groups, wealth was a symbol of probable salvation and high morals, and fatness a sign of wealth and well-being. Today the opposite is true. We have shifted to thinness as our new mark of virtue. The result is that being fat—or even somewhat overweight—is bad because it implies a lack of moral strength. Our obsession with thinness is also fueled by health concern. It is true that in this country we have more overweight people than ever before, and that, in many cases, being overweight correlates with an increased risk of heart and blood vessel disease. These diseases, however, may have as much to do with our way of life and our high-fat diet as with excess weight. All the associated risk of cancer in the digestive system may be more of a dietary problem—too much fat and a lack of fiber—than a weight problem. The real concern, then, is not that we weigh too much, but that we neither exercise enough nor eat well. Exercise is necessary for strong bones and both heart and lung health. A balanced diet without a lot of fat can also help the body avoid many diseases. We should surely stop paying so much attention to weight. Simply being thin is not enough. It is actually hazardous if those who get (or already are) thin think they fire automatically healthy and thus free from paying attention to their overall lifestyle. Thinness can be pure vainglory.

单选题One day a car rental agency rented 2/3 of its cars, including 3/5 of its cars with CD players. If 3/4 of its cars have CD players, what percent of the cars that were not rented had CD players? A. 10% B. 35% C. 45% D. 66.7% E. 90%

单选题Financial institutions will spend huge sums, rolling our nationwide networks in Britain, France, Spain and perhaps in Germany. But the seeds for the most ______ growth will be sown in America, where most banks have been slow to experiment with digital dollars until now.

单选题The questions in this group are based on the content of a passage. After reading the passage, choose the best answer to each question. Answer all questions following the passage on the basis of what is stated or implied in the passage. The complex life cycle of the Plasmodium protozoan, the causative agent of malaria, has contributed to the difficulty of devising effective public health measures to combat the disease. It took scientists centuries to deconstruct the basic relationship between protozoan, mosquito vector, and human host. Modern physiologists and epidemiologists are still working out the intricacies of malarial infection. The disease is transmitted by the bite of a female Anopheles mosquito infected with the Plasmodium parasite. Only Anopheles mosquitoes are capable of transmitting the disease, and only females take blood meals from humans. To become infected with Plasmodium, the female mosquito takes a blood meal from a human carrying the parasite in his or her blood. Once ingested, the parasite matures in the mosquito's gut for approximately a week, after which it migrates to the insect's salivary glands. By mixing with the mosquito's saliva, the parasite facilitates its transmission to a human host when the mosquito bites that human. Once in a human's bloodstream, the parasite travels to the human's liver. At this initial stage, the Plasmodium parasite is called a sporozoite. Within the liver, the sporozoite can form 30,000 to 40,000 daughter cells, called merozoites, which are released into the host's bloodstream at a later date, sometimes within a week of the initial infection and sometimes as much as several months later. The merozoites seek out and attach themselves to red blood cells, in which they incubate 8 to 24 daughter cells over the next two days. When the daughter cells are mature, the red blood cell ruptures and the new parasites are released into the bloodstream to seek out red blood cells of their own. Some of the new merozoites become male and female gametocytes; if these gametocytes are ingested by a mosquito feeding on the host's blood, they will fertilize in the mosquito's gut to produce new sporozoites, and the cycle will continue. The symptoms that we associate with malaria--a high, recurring fever; joint pain; a swollen spleen--are caused by toxins released from the red blood cells ruptured by merozoites. The human spleen can destroy these infected blood cells, but the Plasmodium parasite counters this effect by increasing the stickiness of proteins on the blood cells' surfaces so that the cells stick to the walls of blood vessels. If the sticky surface proteins affect a particularly large number of cells, the malaria can trans-form into a hemorrhagic fever, the most deadly form of malaria. A further complicating factor in the natural history of malaria is the many variants of the Plasmodium protozoan. Scientists now recognize that malaria is caused by at least six different species: P. falciparum, P. vivax, P. ovale, P. malariae, P. knowesli, and P. semiovale. Of these species, P. falciparum accounts for the majority of infections and approximately 90 percent of malarial deaths in the world.

单选题Voices were ______ as the argument between the two motorists became more bad-tempered.

单选题The questions in this group are based on the content of a passage. After reading the passage, choose the best answer to each question. Answer all questions following the passage on the basis of what is stated or implied in the passage. While most people agree that the Golden Age of comic books began with the introduction of Superman in 1938 in Action Comics #1, there is less agreement about when exactly the Golden Age ended. There is a general consensus, however, about the factors that brought the Golden Age to a close: the rise of the horror comic book in the late 1940s, and the resulting backlash against comic books in the early 1950s. Superhero comic books reached their peak of popularity in the early 1940s because of all the GIs in Europe and Japan who eagerly read about Superman, Batman, and The Spirit. When these soldiers came home, they still wanted to read comic books, but they sought out more adult content. William Gaines of EC Comics was happy to meet the market demand with such grim and gritty titles as Weird Fantasy and The Crypt of Terror. The creators of superhero comic books, not wanting to be left behind, responded by matching their protagonists against darker criminals in more violent encounters. These darker comic books aroused the anger of child psychologist Fredric Wertham, who believed that comic books were leading the nation's youth into crime, violence, and drug abuse. Wertham's book, The Seduction of the Innocent, was a national best-seller that helped bring about congressional investigations into the corrupting influence of comic books. The Senate committee that reviewed Wertham's charges decided to create the Comics Code Authority, a regulatory body that prohibited comic books from mentioning sexuality, alcohol, drugs, criminal behavior, or any themes related to the horror genre. These regulations had a numbing effect on the industry. EC Comics was nearly driven out of the comics business, and the other major players canceled many of their most prominent titles. The comics business did not recover until the Marvel revolution of the early 1960s ushered in the Silver Age.

单选题Inthecircularregionshownabove,sectionsAandBrepresent3/8and5/11,respectively,oftheareaofthecircularregion.SectionCrepresentswhatfractionalpartoftheareaofthecircularregion?

单选题There are Congressmen who say that the development of a space-based missile defense system will provide economic benefits only to military contractors. This claim is not true. A space-based missile defense system, even if it has no current applications for civilian businesses, will still benefit civilian businesses because those businesses will be able to find profitable uses for the government-developed technology in the future. Which of the following statements, if true, provides the most support for the argument that a space-based missile defense system could provide future economic benefits for civilian businesses? A. Several new materials developed for the Apollo space program were later adapted to provide basic components of the modem computer and electronics industries. B. The missile defense system in question will not require the development of any new technologies. C. Space-based missile defense programs may be the only way to defend civilian populations against preemptive nuclear attacks. D. Space-based missile defense programs, although more expensive than traditional land-based systems, are theoretically more effective than traditional land-based systems. E. The scientists employed on the project could make extraordinary advances in the capabilities of intercontinental ballistic missiles used by the army.

单选题I'm sure dirty, ______? A. am I B. aren't I C. isn't I D. am not I

单选题Adam's dog, a golden retriever named Hans, can respond to over 150 different commands. Adam cites this fact as evidence for his claim that Hans can understand the English language. Which of the following, if true, casts the most doubt on Adam's claim that Hans can understand the English language? A. Each of the 150 commands to which Hans responds involves both a spoken word in English and a distinctive hand sign. B. Hans does not respond to the same commands when spoken to him by Adam's French and Italian friends in their own languages. C. Scientists have demonstrated conclusively that canine vocal chords are incapable of replicating many of the sounds used in the English language. D. Animal behaviorists have demonstrated that even very young dogs surpass both wolves and chimpanzees--animals that are thought to be more intelligent than dogs--in the ability to understand human nonverbal communication. E. The golden retriever is widely considered to be less intelligent than the border collie, and no border collie has ever been shown to truly understand the English language.

单选题The square root of 800 is between which of the following integers? A. 21 and 25 B. 24 and 28 C. 27 and 31 D. 30 and 34 E. 33 and 37

单选题Rarely have the Christmas results for Britain"s supermarkets been awaited with such anxiety. Most of them, especially the market leader, Tesco, struggled in 2014. The hard-discount stores, Aldi and Lidl, continued to undercut them, gobbling up market share, while falling food prices ate into their profits. Asda"s boss, Andrew Clarke, has warned of more challenging times ahead. Yet the lesson from these results is clear. Grocers with a clearly defined position in the market will continue to prosper, but for those without one there is more pain to come. Thus Waitrose, for instance, has remained resolutely and distinctly posh. It has refused to chase the upstart discounters by reducing prices, as mid-market rivals have done. Natalie Berg of Planet Retail, a research organization argues that the key to survival in a ferociously competitive groceries market is to offer the customer a brand that is "clear, targeted and consistent." Waitrose, at the top end of the market, does this welt, as do Lidl and Aldi at the bottom. The rest are stranded in the middle, trying to be all things to all people. This week, for instance, Asda, Sainsbury"s and Tesco announced further price cuts. That might fend off the discounters for a bit. It will also muddy perceptions of who their target customers really are. But it is not all gloom for the supermarkets. A more clement economic environment should help all of them. Tumbling fuel prices and—a novelty, this—rising real wages will put more money in shoppers" pockets. The results also demonstrate that supermarkets are rewarded for a strong internet presence. Again, Waitrose has done well here: grocery sales through its online service grew by 26% over the Christmas period compared with a year ago. Most of the supermarkets are trying out new digital gizmos to make shopping easier. Waitrose is experimenting with a home-scanning device called Hiku. This will allow people to scan barcodes on Waitrose products at home to add them to their online shopping basket. There are grounds for optimism even at Tesco, argues Bryan Roberts, an analyst at Kantar Retail. For a couple of years its stores in London have done better than those in the rest of the country. Store managers in the capital have enjoyed more autonomy to fill their shelves with products suited to the people who live or work in the local area. Devolution seems simple, but effective.

单选题Given the advantage of electronic money, you might think that we should move quickly to the cashless society in which all payments are made electronically. 1 , a true cashless society is probably not around the corner. Indeed, predictions have been 2 for two decades but have not yet come to fruition. For example, Business Week predicted in 1975 that electronic means of payment would soon "revolutionize the very 3 of money itself," only to 4 itself several years later. Why has the movement to a cashless society been so 5 in coming? Although electronic means of payment may be more efficient than a payments system based on paper, several factors work 6 the disappearance of the paper system. First, it is very 7 to set up the computer, card reader, and telecommunications networks necessary to make electronic money the 8 form of payment. Second, paper checks have the advantage that they 9 receipts, something that many consumers are unwilling to 10 . Third, the use of paper checks gives consumers several days of "float"—it takes several days 11 a check is cashed and funds are 12 from the issuer"s account, which means that the writer of the check can earn interest on the funds in the meantime. 13 electronic payments are immediate; they eliminate the float for the consumer. Fourth, electronic means of payment may 14 security and privacy concerns. We often hear media reports that an unauthorized hacker has been able to access a computer database and to alter information 15 there. The fact that this is not an 16 occurrence means that dishonest persons might be able to access bank accounts in electronic payments systems and 17 from someone else"s accounts. The 18 of this type of fraud is no easy task, and a new field of computer science is developing to 19 security issues. A further concern is that the use of electronic means of payment leaves an electronic 20 that contains a large amount of personal data. There are concerns that government, employers, and marketers might be able to access these data, thereby violating our privacy.