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题库总题数 8227
做题总人数 108027
平均每天做题人数 2221
  • OG19新题 题目总数:142   |   做题总人数:3685   |   平均准确率:70.1%

    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。

    • 1504人已做

      600

      (53.9%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.

    • 1380人已做

      650

      (39.4%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.

    • 1284人已做

      600

      (87.4%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.

    • 964人已做

      650

      (68.9%正确率)

      【数据充分DS】-9195-精选题库

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

    • 677人已做

      600

      (61.4%正确率)

      【数据充分DS】-9196-精选题库

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

    • 1477人已做

      680

      (79.6%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.

    • 1912人已做

      700

      (64.7%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.

    • 1972人已做

      730

      (57.6%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.

    • 799人已做

      650

      (58.4%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.

    • 672人已做

      650

      (80.7%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】 If ,2x+2y=x2+y2  where x and y are non-negative integers, what is the greatest possible value of |x-y|?
  • 【句子改错SC】 Many population studies have linked a high-salt diet to high rates of hypertension and shown that in societies where they consume little salt, their blood pressure typically does not rise with age.
  • 【作文AWA】 The following appeared as part of an article in a magazine devoted to regional life.“Corporations should look to the city of Helios when seeking new business opportunities or a new location. Even in the recent recession, Helios’s unemployment rate was lower than the regional average. It is the industrial center of the region, and historically it has provided more than its share of the region’s manufacturing jobs. In addition, Helios is attempting to expand its economic base by attracting companies that focus on research and development of innovative technologies.”
  • 【句子改错SC】 Data gathered by weather satellites has been analyzed by scientists, reporting that the Earth’s northern latitudes have become about ten percent greener since 1980, due to more vigorous plant growth associated with warmer temperatures and higher levels of atmospheric carbon dioxide.
  • 【句子改错SC】 Sales of wines declined in the late 1980s, but they began to grow again after the 1991 report that linked moderate consumption of alcohol, and particularly of red wine, with a reduced risk of heart disease. 
  • 【逻辑CR】 【OG19-P519-575题】In Mernia commercial fossil hunters often sell important fossils they have found, not to universities or museums, but to individual collectors, who pay much better but generally do not allow researchers access to their collections.To increase the number of fossils available for research, some legislators propose requiring all fossils that are found in Mernia to be sold only to universities or museums. Which of the following, if true, most strongly indicates that the legislators’ proposal will fail to achieve its goal?
  • 【句子改错SC】 Last week local shrimpers held a news conference to take some credit for the resurgence of the rare Kemp's ridley turtle, saying that their compliance with laws requiring that turtle-excluder devices be on shrimp nets protect adult sea turtles.
  • 【数据充分DS】 Did one of the 3 members of a certain team sell at least 2 raffle tickets yesterday?(1) The 3 members sold a total of 6 raffle tickets yesterday. (2) No 2 of the members sold the same number of raffle tickets yesterday. 
  • 【逻辑CR】 Mice that have been given morphine are very likely to develop blood poisoning because bacteria that normally reside in the intestine typically respond to morphine by migrating into the bloodstream.  However, when mice are given both morphine and the new drug naltrexone, blood poisoning is much less frequent, although it does still occur.  These results provide support for researchers’ prediction that naltrexone will turn out to be toxic to certain types of bacteria.Which of the following, if discovered to be true, would most seriously weaken the support for the researchers’ prediction?
  • 【逻辑CR】 Often patients with ankle fractures that are stable, and thus do not require surgery, are given follow-up x-rays because their orthopedists are concerned about possibly having misjudged the stability of the fracture. When a number of follow-up x-rays were reviewed, however, all the fractures that had initially been judged stable were found to have healed correctly. Therefore, it is a waste of money to order follow-up x-rays of ankle fracture initially judged stable. Which of the following, if true, most strengthens the argument? 

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. 
  • 【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. 
  • 【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】 【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】  【OG18-P692-730题】In 1850, Lucretia Mott published her Discourse on Women, arguing in a treatise for women to have equal political and legal rights and for changes in the married women&rsquo;s property laws. 
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