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题目： McCray's Dairy Industries stands to reap tremendous profits in the coming year. The new milking apparatus and packing equipment purchased and installed last year allows McCray's to produce the same quantity of dairy products at less than one third of the previous cost. Restaurants and academic institutions throughout the state will choose to purchase all their dairy products from McCray's, because they will be available at a much lower cost than similar products from rival producers. The argument above assumes which of the following?

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题目： An unknown simian virus recently killed off nearly half the human population of a remote jungle town. Because the disease spread at an alarming rate-victims usually exhibited signs within 8 hours of exposure, and many died within 36 hours-the simian virus, if an outbreak occurs again, is likely to cause more deaths than has any other previous virus. Which of the following pieces of information most effectively calls into question the validity of the conclusion?

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题目： State politicians are optimistic that the state's economic downturn will not be as severe as had been predicted. Their hopes are bolstered by the data released last week: the jobless rate declined two full percentage points in the last six months. But, many economists have pointed out the flight of unemployed residents to the bordering states where jobs are plentiful. Furthermore, many out of work residents have been rehired at minimum wage: virtually all new jobs in the state in the past year have been minimum wage jobs. Economists cast grave doubts on the economic well-being of the state. In the argument given, the two portions in boldface play which of the following roles?

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题目： Bankruptcy is a process that depends on a variety of structural, fiscal, and human variables. These variables are different at every company. Therefore, the pattern of companies declaring bankruptcy should be random. Yet tax records from 2010 demonstrate a pattern: a large number of companies throughout the United States declared bankruptcy at the same time.Which of the following, if true, forms the best basis for at least a partial explanation for the pattern of bankruptcy shown by the tax records?

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题目： A company that invests the necessary infrastructure in a large untapped diamond mine can reap as much as 700% profit in the first year. Some of the largest untapped diamond mines in the world are in the nation of Shagoca. Therefore, the American company that brokers a deal in the capital Conkin that allows it to put the necessary infrastructure in place at those mines stands to reap tremendous profits. Which of the following, if true, most helps to explain why American companies are not eager to invest in infrastructure necessarily for diamond mining in Shagoca?

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题目： Oceanologist: Recently an unprecedented number of dead dolphins washed ashore along the mid-Atlantic coast. In the blood of over half of the dolphins, marine biologists discovered a brevotoxin that had been emitted by the alga Ptychodiscus brevis, in what is known as a red tide. Additionally, polychlorinated biphenyls (PCB), a toxic industrial compound, was also found in the dolphin's blood. A reasonable conclusion, and indeed one many have drawn, is that the dolphins were simply victims of the brevotoxin. Nonetheless, brevotoxins, by themselves, are not lethal to dolphins, though they do tax the dolphins system. Furthermore, most dolphins have some accumulated brevotoxins in their blood without suffering any ill health effects. Therefore, the brevotoxins alone cannot explain the mass beaching of dead dolphins. Which of the following, if true, does most to help explain the oceanologist's doubt that the brevotoxins were the primary cause of the dolphins washing upon shore?

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题目： Federal investigators, called in at the request of the management of Ploutos National Bank, recently apprehended a ring of seven embezzlers from among the bank's employees. The bank management decided to call in the federal investigators when they were unable to account for millions of dollars missing in their budget for this year. All the funds those seven individuals embezzled have been returned to the bank, and that accounts for about two thirds of the total amount missing. All seven of the accused have plea-bargained to avoid trial and are now serving in prison on reduced sentences.Which of following conclusions can most properly be drawn from the information above?

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题目： What is the value of $${x}^{2}$$ ?(1)$${5}<{x}^{2}<{10}$$(2)x is an integer.

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题目： Diamond Enterprises is a store in Apisville that sells specialty luxury items. For several years, Diamond reaped substantial profits and was considering building branch stores in nearby counties. Stibium Industries, for several years the single largest employer in Apisville and the surrounding region, abruptly closed its plant last year, causing widespread unemployment. Only a fraction of the former Stibium workers have found new jobs, and many of these at much lower wages. Early this year, Diamond Enterprises has filed for Chapter 11 bankruptcy, citing the closure of Stibium as one of the primary causes. Which of the following inferences is best supported by the passage?

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题目： In Metroville, the KP subway line follows the riverfront from downtown to the neighborhoods surrounding the university. No matter how many trains the subway runs on the KP line, there are always congestion and delays on the KP line. The subway submitted a proposal for an alternate subway line that would travel from downtown to the neighborhoods surrounding the university via the inland neighborhoods, hoping to draw some of the congestion from the KP line. The city hired urban planning consultants who concluded the subway's proposal of a new line would not reduce commuter congestion on the KP line.Which of the following, if true, most helps to explain the urban planning consultants' position?

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题目： Recently, many medical students have been enrolling in joint M.D./J.D. programs, in which they receive both medical and law degrees at the conclusion of their studies. But since medical students primarily earn their law degree in order to protect themselves from malpractice lawsuits as doctors, we must still conclude that they are primarily doctors, and not lawyers.Which of the following is an assumption that supports drawing the conclusion above from the reason given?

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题目： A minor league baseball franchise experienced a drop in attendance this week after they suffered three losses by margins of ten runs or more last week. Many spectators of those games wrote letters to the editors of the local sporting news, complaining of the poor play of the team in those three losses. Nevertheless, the front office of this baseball franchise maintains that the team's poor play in those three losses has nothing to do with this week's decline in attendance.Which of the following, if true, most strongly supports the position held by the front office of the baseball franchise?

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题目： When complaints against staff are brought to Human Resources at Sarpedon Inc., the Human Resources department cannot always determine whether there was just cause for the complaint. This is usually due to insufficient evidence provided by the claimant. Nevertheless, Sarpedon will sometimes dismiss an employee because of such a complaint, even if unsubstantiated.Which of the following conclusions can most properly be drawn from the information above?

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题目： The rate of health complications of patients on intravenous (IV) therapy at a particular hospital was higher than usual. Government inspectors found that the typical IV solutions used in this hospital had somewhat high concentrations of sodium and potassium, which were raising patients' blood pressure and taxing their kidneys. The government inspectors mandated lowering the sodium and potassium in these IV preparations, and threatened with a possible government fine. In compliance, the hospital lowered the sodium and potassium levels in the IV solutions to the correct levels. Nevertheless, patients on IV therapy at that hospital continued to have a high rate of health complications.Which of the following, if true, most helps to explain why acting on the government inspectors' recommendations failed to achieve its goal?

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题目： In a few recent cases, some teenagers with advanced programming abilities used a new programming language, FANTOD, to hack into ETS and change their own SAT scores. All of the teenagers convicted of this crime were highly skilled in programming FANTOD. In light of these cases, some colleges have discounted the official SAT scores of applicants with a knowledge of FANTOD, and have required them to take special admission tests in supervised conditions on their own campuses.Which of following conclusions can most properly be drawn from the information above?