OG19新题 题目总数：142 做题总人数：8452 平均准确率：75.5%
As opposed to adults, pound for pound, children breathe twice as much air, drink two and a half times as much water, eat three to four times as much food, and have more skin surface area.
来源：OG21新题 508人已做 其他难度 54.9%正确率
Upon their first encountering leaf-cutting ants in South America, the insects seemed to some Europeans to be carrying bits of greenery to shade themselves from the tropical sun—hence the sobriquet “parasol ants.”
来源：OG21新题 593人已做 其他难度 83.5%正确率
Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
来源：GWD–TN24套 、OG21新题 503人已做 其他难度 44.5%正确率
Although the earliest inhabitants of Mapungubwe, building their dwellings of either wattle and daub or unfired mud brick, by the thirteenth century buildings of coral blocks in lime mortar began to appear.
来源：OG21新题 595人已做 其他难度 82.9%正确率
Scientists claim that the discovery of the first authenticated mammal bones in amber could provide important clues of determining, in addition to how, when mammals colonized the islands of the West Indies.
来源：OG21新题 527人已做 其他难度 57.9%正确率
Even with the proposed budget cuts and new taxes and fees, the city's projected deficit for the next budget year is getting worse: administration officials announced that they believe the gap will be $3.7 billion, a billion dollars over what it was predicted just two months ago.
来源：OG21新题 531人已做 其他难度 49%正确率
With near to all tortilla chips made from corn kernels that have been heated in a solution of calcium hydroxide (lime), this removes the skin of the kernel so water can penetrate.
来源：OG21新题 607人已做 其他难度 82.4%正确率
Sam has $800 in his account. He will deposit $1 in his account one week from now, $2 two weeks from now, and each week thereafter he will deposit an amount that is $1 greater than the amount that he deposited one week before. If there are no other transactions, how much money will Sam have in his account 50 weeks from now?
来源：OG21新题 359人已做 其他难度 87.5%正确率
Last year a state senate consisting of only Republican and Democrat members had 20 more Republican members than Democrat members. This year the senate has the same number of members as last year, but it has 2 fewer Republican members than last year. If this year the number of Republican members is the number of senate members, how many members does the senate have this year?
来源：OG21新题 362人已做 其他难度 82.3%正确率
The profit P, in dollars, for any given month at a certain company is defined by P = I − C, where I represents total income, in dollars, and C represents total costs, in dollars, for the month. For each of the first 4 months of the year, C = I + 32,000; and for each of the next 3 months, I = C + 36,000. If I = C + 10,000 for each of the 5 remaining months of the year, what was the company’s total profit for the 12-month year?
来源：OG21新题 364人已做 其他难度 83.8%正确率
In parts of South America, vitamin-A deficiency is a serious health problem, especially among children. In one region, agriculturists hope to improve nutrition by encouraging farmers to plant a new variety of sweet potato called SPK004 that is rich in betacarotene, which the body converts into vitamin A. The plan has good chances of success, since sweet potato is a staple of the region’s diet and agriculture, and the varieties currently grown contain little beta-carotene. Which of the following, if true, most strongly supports the prediction that the plan will succeed?
Which of the following is included in the discussion of the cursorial hypothesis but not in the discussion of the arboreal hypothesis?
It is illegal to advertise prescription medications in Hedland except directly to physicians, either by mail or in medical journals. A proposed law would allow general advertising of prescription medications. Opponents object that the general population lacks the specialized knowledge to evaluate such advertisements and might ask their physicians for inappropriate medications. But since physicians have the final say as to whether to prescribe a medication for a patient, inappropriate prescriptions would not become more common. Which of the following would it be most useful to establish in order to evaluate the argument?
【OG20-P595-717题】Which of the following most logically completes the passage?According to the last pre-election poll in Whippleton, most voters believe that the three problems government needs to address, in order of importance, are pollution, crime, and unemployment. Yet in the election, candidates from parties perceived as strongly against pollution were defeated, while those elected were all from parties with a history of opposing legislation designed to reduce pollution.These results should not be taken to indicate that the poll was inaccurate, however, since __________
【OG20-P594-715题】Several industries have recently switched at least partly from older technologies powered by fossil fuels to new technologies powered by electricity. It is thus evident that less fossil fuel is being used as a result of the operations of these industries than would have been used if these industries had retained their older technologies.Which of the following, if true, most strengthens the argument above?
In July 1965 Mariner IV passed by Mars and took the first-ever close-up photographs of another planet, which showed that the Martian surface was like that of the Moon's in that it was pockmarked by moonlike craters and was dry and apparently dead.
A survey of entrepreneurs who started companies last year shows that while virtually all did substantial preparatory research and planning, only half used that work to produce a formal business plan. Since, on average, the entrepreneurs without formal plans secured the capital they needed in half the time of those with plans, these survey results indicate that, in general, formal plans did not help the entrepreneurs who produced them to secure the capital they needed. Which of the following, if true, most seriously weakens the argument?
【OG20-P181-230题】The value of is how many times the value of 2-17?
To Josephine Baker, Paris was her home long before it was fashionable to be an expatriate, and she remained in France during the Second World War as a performer and an intelligence agent for the Resistance.
【OG20-P459-606题】The author of the passage mentions "escape velocity" in order to help explain which of the following?