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题库总题数 8227
做题总人数 106761
平均每天做题人数 2287
  • OG19新题 题目总数:142   |   做题总人数:3210   |   平均准确率:69.7%

    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。

    • 1427人已做

      600

      (54.2%正确率)

      【数据充分DS】-9191-精选题库

      If n and k are positive integers, is n/k an even integer? (1) n is divisible by 8. (2) k is divisible by 4.

    • 1302人已做

      650

      (39.2%正确率)

      【数据充分DS】-9192-精选题库

      Joanna bought only $0.15 stamps and $0.29 stamps. How many $0.15 stamps did she buy?(1) She bought $4.40 worth of stamps.(2) She bought an equal number of $0.15 stamps and $0.29 stamps.

    • 1204人已做

      600

      (87.3%正确率)

      【数据充分DS】-9193-精选题库

      A citrus fruit grower receives $15 for each crate of oranges shipped and $18 for each crate of grapefruit shipped. How many crates of oranges did the grower ship last week?(1) Last week the number of crates of oranges that the grower shipped was 20 more than twice the number of crates of grapefruit shipped.(2) Last week the grower received a total of $38,700 from the crates of oranges and grapefruit shipped.

    • 913人已做

      650

      (69%正确率)

      【数据充分DS】-9195-精选题库

      Is │x - y│>│x - z│? (1) │y│>│z│ (2) x < 0

    • 645人已做

      600

      (60.9%正确率)

      【数据充分DS】-9196-精选题库

      Is x>0?(1) x+3>2(2) x+3

    • 1389人已做

      680

      (79.7%正确率)

      【数据充分DS】-9325-精选题库

      Is the integer P odd?(1) The sum of P, P + 4, and P + 11 is even.(2) The sum of P – 3, P, and P + 11 is odd.

    • 1798人已做

      700

      (65%正确率)

      【数据充分DS】-9337-精选题库

      If positive integer x is a multiple of 6 and positive integer y is a multiple of 14, is xy a multiple of 105 ? (1) x is a multiple of 9. (2) y is a multiple of 25.

    • 1848人已做

      730

      (58.2%正确率)

      【数据充分DS】-9339-精选题库

      A school administrator will assign each student in a group of n students to one of m classrooms. If 3 < m < 13 < n, is it possible to assign each of the n students to one of the m classrooms so that each classroom has the same number of students assigned to it?(1) It is possible to assign each of 3n students to one of m classrooms so that each classroom has the same number of students assigned to it.(2) It is possible to assign each of 13n students to one of m classrooms so that each classroom has the same number of students assigned to it.

    • 762人已做

      650

      (57.7%正确率)

      【数据充分DS】-9340-精选题库

      【OG18-P287-403题】If n is a positive integer, what is the tens digit of n ?(1) The hundreds digit of 10n is 6.(2) The tens digit of n + 1 is 7.

    • 650人已做

      650

      (80.5%正确率)

      【数据充分DS】-9342-精选题库

      In a certain office, 50 percent of the employees are college graduates and 60 percent of the employees are over 40 years old. If 30 percent of those over 40 have master’s degrees, how many of the employees over 40 have master’s degrees(1) Exactly 100 of the employees are college graduates.(2) Of the employees 40 years old or less, 25 percent have master’s degrees.

最新讨论题目

  • 【问题求解PS】 A password of a computer used five digits where they are from 0 and 9. What is the probability that the password solely consists of prime numbers and zero? 
  • 【句子改错SC】 Although she had been known as an effective legislator first in the Texas Senate and later in the United States House of Representatives, not until Barbara Jordan’s participation in the hearings on the impeachment of President Richard Nixon in 1974 was she made a nationally recognized figure, as it was televised nationwide.
  • 【句子改错SC】 【OG19-P721-778题】Marconi’s conception of the radio was as a substitute for the telephone, a tool for private conversation; instead, it is precisely the opposite, a tool for communicating with a large, public audience. 
  • 【问题求解PS】 If the sequence x1, x2, x3, …, xn, … is such that x1  = 3 and xn+1 = 2xn – 1 for n ≥ 1, then x20 – x19 = 
  • 【问题求解PS】 If 0 < x < 1, which of the following inequalities must be true?I. x^5 < x^3II. x^4 + x^5 < x^3 + x^2III. x^4 - x^5 < x^2 - x^3 
  • 【问题求解PS】 There are 15 slate rocks, 20 pumice rocks, and 10 granite rocks randomly distributed in a certain field.  If 2 rocks are to be chosen at random and without replacement, what is the probability that both rocks will be slate rocks?
  • 【逻辑CR】 Consumer advocate: It is generally true, at least in this state, that lawyers who advertise a specific service charge less for that service than lawyers who do not advertise. It is also true that each time restrictions on the advertising of legal services have been eliminated, the number of lawyers advertising their services has increased and legal costs to consumers have declined in consequence. However, eliminating the state requirement that legal advertisements must specify fees for specific services would almost certainly increase rather than further reduce consumers’ legal costs. Lawyers would no longer have an incentive to lower their fees when they begin advertising and if no longer required to specify fee arrangements, many lawyers who now advertise would increase their fees. In the consumer advocate’s argument, the two portions in boldface play which of the following roles?
  • 【逻辑CR】 In Berinia, the age at which people could begin to drink alcohol legally used to be 18. In 1990, in an attempt to reduce alcohol consumption and thereby to reduce alcohol-related traffic deaths among Berinlans under 21, the legal drinking age was raised to 21. Alcohol-related traffic deaths among people under 21 have decreased significantly since 1990. Nevertheless, surveys show that people in that age-group drink just as much alcohol as they did before 1990.Which of the following, if true of Berinia, most helps to resolve the apparent discrepancy?
  • 【逻辑CR】 Perkins: According to an article I read, the woolly mammoth‘s extinction in North America coincided with a migration of humans onto the continent 12,000 years ago, and stone spearheads from this period indicate that these people were hunters. But the author's contention that being hunted by humans contributed to the woolly mammoth‘s extinction is surely wrong since, as paleontologists know, no spearheads have ever been found among the many mammoth bones that have been unearthed.Which of the following, if true, provides the strongest reason for discounting the evidence Perkins cites in arguing against the contention that being hunted by humans contributed to the North American extinction of woolly mammoths?
  • 【句子改错SC】 Research during the past several decades on the nature of language and the processes that produce and make it understandable has revealed great complexity instead of underlying simplicity. 

错误最多题目

  • 【破解版07-句子改错SC】 To meet the rapidly rising market demand for fish and seafood, suppliers are growing fish twice as fast as their natural growth rate, cutting their feed allotment by nearly half and raising them on special diets.
  • 【破解版07-句子改错SC】 The Achaemenid empire of Persia reached the Indus Valley in the fifth century B.C., bringing the Aramaic script with it, from which was derived both northern and southern Indian alphabets.
  • 【OG16-句子改错SC】 Emily Dickinson&rsquo;s letters to Susan Huntington Dickinson were written over a period beginning a few years before Susan&rsquo;s marriage to Emily&rsquo;s brother and ending shortly before Emily&rsquo;s death in 1886, outnumbering her letters to anyone else. 
  • 【破解版07-句子改错SC】 The investigations of many psychologists and anthropologists support the generalization of there being little that is a significant difference in the underlying mental processes manifested by people from different cultures.
  • 【OG16-句子改错SC】 【OG18-P682-678题】In 1979 lack of rain reduced India&rsquo;s rice production to about 41 million tons, nearly 25 percent less than those of the 1978 harvest. 
  • 【破解版07-句子改错SC】 More than 300 rivers drain into Siberia's Lake Baikal, which holds 20 percent of the world's fresh water, more than all the North American Great Lakes combined.
  • 【OG16-句子改错SC】 【OG18-P688-710题】There are several ways to build solid walls using just mud or clay, but the most extensively used method has been the forming of bricks out of mud or clay, and, after some preliminary air drying or sun drying, they are laid in the wall in mud mortar. 
  • 【OG16-句子改错SC】 【OG19-P705-702题】Bengal-born writer, philosopher, and educator Rabindranath Tagore had the greatest admiration for Mohandas K. Gandhi the person and also as a politician, but Tagore had been skeptical of Gandhi&rsquo;s form of nationalism and his conservative opinions about India&rsquo;s cultural traditions. 
  • 【OG16-句子改错SC】 The Olympic Games helped to keep peace among the pugnacious states of the Greek world in that a sacred truce was proclaimed during the festival's month. 
  • 【OG16-句子改错SC】 【OG19-P717-756题】Combining enormous physical strength with higher intelligence, the Neanderthals appear as equipped for facing any obstacle the environment could put in their path, but their relatively sudden disappearance during the Paleolithic era indicates that an inability to adapt to some environmental change led to their extinction. 
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