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题库总题数 9562
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平均每天做题人数 2317
  • OG19新题 题目总数:142 做题总人数:10709 平均准确率:77.1%

    2018年6月出版,OG19新题即OG2019综合册里与OG18相比新增的题目。此内容做为官方题源可以帮助大家更好的需要了解考点,了解考试趋势和考官思维。OG建议大家刷3遍,第一遍刷纸质,第二遍计时精刷,第三遍刷错题。做完后记得及时分析总结。

    • 【句子改错SC】-18361 -OG2018

      In 1913, the largely self- taught Indian mathematician Srinivasa Ramanujan mailed 120 of his theorems to three different British mathematicians;only one, G. H. Hardy, recognized the brilliance of these theorems, but thanks to Hardy’s recognition, Ramanujan was eventually elected to the Royal Society of London.

      来源:精选题库 1336人已做 650难度 65%正确率

    • 【数据充分DS】-18360 -OG21新题

      In the figure shown, is || ?(1) r = s(2) t = u

      来源:OG21新题 960人已做 600难度 91.6%正确率

    • 【问题求解PS】-18359 -OG21新题

      In the figure above, ABCD is a parallelogram and E is the midpoint of side AD. The area of triangular region ABE is what fraction of the area of quadrilateral region BCDE ?

      来源:OG21新题 786人已做 其他难度 62.6%正确率

    • 【数据充分DS】-18358 -OG21新题

      Did the population of Town C increase by at least 100 percent from the year 2000 to the year 2010 ?(1)The population of Town C in 2000 was 2/3 of the population in 2005.(2)The population of Town C increase by a greater number of people from 2005 to 2010 than it did from 2000 to 2005

      来源:OG21新题 798人已做 其他难度 74.3%正确率

    • 【问题求解PS】-18357 -OG21新题

      The outer dimensions of a closed rectangular cardboard box are 8 centimeters by 10 centimeters by 12 centimeters, and the six sides of the box are uniformly centimeter thick. A closed canister in the shape of a right circular cylinder is to be placed inside the box so that it stands upright when the box rests on one of its sides. Of all such canisters that would fit, what is the outer radius, in centimeters, of the canister that occupies the maximum volume?

      来源:OG21新题 766人已做 其他难度 53%正确率

    • 【问题求解PS】-18356 -OG21新题

      If the length of a diagonal of a square is , what is the area of the square in terms of x ?

      来源:OG21新题 791人已做 其他难度 89.4%正确率

    • 【问题求解PS】-18355 -OG21新题

      Last year Brand X shoes were sold by dealers in 403 different regions worldwide, with an average (arithmetic mean) of 98 dealers per region. If last year these dealers sold an average of 2,488 pairs of Brand X shoes per dealer, which of the following is closest to the total number of pairs of Brand X shoes sold last year by the dealers worldwide?

      来源:OG21新题 779人已做 其他难度 81.8%正确率

    • 【问题求解PS】-18354 -OG21新题

      Carol purchased one basket of fruit consisting of 4 apples and 2 oranges and another basket of fruit consisting of 3 apples and 5 oranges. Carol is to select one piece of fruit at random from each of the two baskets. What is the probability that one of the two pieces of fruit selected will be an apple and the other will be an orange?

      来源:OG21新题 781人已做 其他难度 89.6%正确率

    • 【问题求解PS】-18353 -OG21新题

      If the units digit of is 6, what is the value of k ?

      来源:OG21新题 842人已做 其他难度 72.8%正确率

    • 【问题求解PS】-18352 -OG21新题

      A certain state’s milk production was 980 million pounds in 2007 and 2.7 billion pounds in 2014. Approximately how many more million gallons of milk did the state produce in 2014 than in 2007 ? (1 billion = and 1 gallon = 8.6 pounds.)

      来源:OG21新题 920人已做 其他难度 80.4%正确率

最新讨论题目
  • 【句子改错SC】

    In the six-month period that ended on September 30, the average number of Sunday papers sold by the company was 81,000 less than the comparable period a year ago.

  • 【句子改错SC】

    【OG20-P812-893题】The use of lie detectors is based on the assumption that lying produces emotional reactions in an individual that, in turn, create unconscious physiological responses. 

  • 【逻辑CR】

    Neither a rising standard of living nor balanced trade, by itself, establishes a country's ability to compete in the international marketplace. Both are required simultaneously since standards of living can rise because of growing trade deficits and trade can be balanced by means of a decline in a country's standard of living. If the facts stated in the passage above are true, a proper test of a country's ability to be competitive is its ability to  

  • 【逻辑CR】

    Clearbell Telephone provides slow-dialing (SD) service to customers for a low fee, and  fast-dialing (FD) service to other customers who pay a somewhat higher fee. FD technology,  however, is so efficient that it costs Clearbell substantially less per average call to provide than  does SD. Nonetheless, accountants have calculated that Clearbell’s profits would drop if it  provided FD to all its customers at the current low-fee rate. Assume that installation costs for FD are insignificant if the customer already has SD service.  Which of the following, if true about Clearbell, best explains the results of the accountants’ calculation?

  • 【句子改错SC】

    In 1913, the largely self- taught Indian mathematician Srinivasa Ramanujan mailed 120 of his theorems to three different British mathematicians;only one, G. H. Hardy, recognized the brilliance of these theorems, but thanks to Hardy’s recognition, Ramanujan was eventually elected to the Royal Society of London.

  • 【逻辑CR】

    【OG20-P608-758题】It is widely assumed that people need to engage in intellectual activities such as solving crossword puzzles or mathematics problems in order to maintain mental sharpness as they age. In fact, however, simply talking to other people—that is, participating in social interaction, which engages many mental and perceptual skills—suffices. Evidence to this effect comes from a study showing that the more social contact people report, the better their mental skills.Which of the following, if true, most seriously weakens the force of the evidence cited?

  • 【逻辑CR】

    【OG20-P608-757题】With seventeen casinos, Moneyland operates the most casinos in a certain state. Although intent on expanding, it was outmaneuvered by Apex Casinos in negotiations to acquire the Eldorado chain. To complete its acquisition of Eldorado, Apex must sell five casinos to comply with a state law forbidding any owner to operate more than one casino per county. Since Apex will still be left operating twenty casinos in the state, it will then have the most casinos in the state.Which of the following, if true, most seriously undermines the prediction?

  • 【逻辑CR】

    【OG20-P608-756题】An experiment was done in which human subjects recognize a pattern within a matrix of abstract designs and then select another design that completes that pattern. The results of the experiment were surprising. The lowest expenditure of energy in neurons in the brain was found in those subjects who performed most successfully in the experiments. Which of the following hypotheses best accounts for the findings of the experiment? 

  • 【逻辑CR】

    【OG20-P607-755题】In Colorado subalpine meadows, nonnative dandelions co-occur with a native flower, the larkspur. Bumblebees visit both species, creating the potential for interactions between the two species with respect to pollination. In a recent study, researchers selected 16 plots containing both species; all dandelions were removed from eight plots; the remaining eight control plots were left undisturbed. The control plots yielded significantly more larkspur seeds than the dandelion-free plots, leading the researchers to conclude that the presence of dandelions facilitates pollination (and hence seed production) in the native species by attracting more pollinators to the mixed plots.Which of the following, if true, most seriously undermines the researchers’ reasoning?

  • 【逻辑CR】

    【OG20-P607-754题】Vargonia has just introduced a legal requirement that student-teacher ratios in government-funded schools not exceed a certain limit. All Vargonian children are entitled to education, free of charge, in these schools When a recession occurs and average incomes fall, the number of children enrolled in government-funded schools tends to increase. Therefore, though most employment opportunities contract in economic recessions, getting a teaching job in Vargonia's government-funded schools will not be made more difficult by a recession.Which of the following would be most important to in order to evaluate the argument? 

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