中间图

Or

题库总题数: 9689
做题总人数: 137806
平均每天做题人数: 2370
  • 自测章作为每本OG必带内容,是GMAT考生了解考试内容,考试题型和自我检测的重要部分,建议GMAT考生在正式刷OG之前先做自测章题目。

    101
    题目总数

    3279
    做题总人数

    67.6%
    平均准确率

    • 【句子改错SC】-15761 -OG18自测章

      As an actress and, more importantly, as a teacher of acting, Stella Adler was one of the most influential artists in the American theater, who trained several generations of actors including Marlon Brando and Robert De Niro.

      来源: 447人已做 600难度 29.3%正确率

    • 【逻辑CR】-15760 -OG18自测章

      Prolonged spells of hot, dry weather at the end of the grape-growing season typically reduce a vineyard’s yield, because the grapes stay relatively small. In years with such weather, wine producers can make only a relatively small quantity of wine from a givenarea of vineyards. Nonetheless, in regions where wine producers generally grow their own grapes, analysts typically expect a long, hot, dry spell late in the growing season to result in increased revenues for local wine producers.Which of the following, if true, does most to justify the analysts' expectation?

      来源: 317人已做 其他难度 78.2%正确率

    • 【逻辑CR】-15759 -OG18自测章

      In the past, most children who went sledding in the winter snow in Verland used wooden sleds with runners and steering bars. Ten years ago, smooth plastic sleds became popular; they go faster than wooden sleds but are harder to steer and slow. The concern that plastic sleds are more dangerous is clearly borne out by the fact that the number of children injured while sledding was much higher last winter than it was 10 years ago.Which of the following, if true in Verland, most seriously undermines the force of the evidence cited?

      来源: 313人已做 其他难度 57.2%正确率

    • 【逻辑CR】-15758 -OG18自测章

      Metal rings recently excavated from seventh-century settlements in the western part of Mexico were made using the same metallurgical techniques as those used by Ecuadorian artisans before and during that period. These techniques are sufficiently complex to make their independent development in both areas unlikely. Since the people of these two areas were in cultural contact, archaeologists hypothesize that the metallurgical techniques used to make the rings found in Mexico were learned by Mexican artisans from Ecuadorian counterparts.Which of the following would it be most useful to establish in order to evaluate the archaeologists’ hypothesis?

      来源: 301人已做 其他难度 57.5%正确率

    • 【逻辑CR】-15757 -OG18自测章

      Following several years of declining advertising sales, the Greenville Times reorganized its advertising sales force. Before reorganization, the sales force was organized geographically, with some sales representatives concentrating on city-center businesses and others concentrating on different outlying regions. The reorganization attempted to increase the sales representatives’ knowledge of clients’ businesses by having each sales representative deal with only one type of industry or of retailing. After the reorganization, revenue from advertising sales increased.In assessing whether the improvement in advertising sales can properly be attributed to the reorganization, it would be most helpful to find out which of the following?

      来源: 324人已做 其他难度 37%正确率

    • 【逻辑CR】-15756 -OG18自测章

      Motorists in a certain country frequently complain that traffic congestion is much worse now than it was 20 years ago. No real measure of how much traffic congestion there was 20 years ago exists, but the motorists’ complaints are almost certainly unwarranted. The country’s highway capacity has tripled in the last twenty years, thanks to a vigorous highway construction program, whereas the number of automobiles registered in the country has increased by only 75 percent.Which of the following, if true, most seriously weakens the argument?

      来源: 287人已做 其他难度 79.1%正确率

    • 【逻辑CR】-15755 -OG18自测章

      The percentage of households with an annual income of more than $40,000 is higher in Merton County than in any other county. However, the percentage of households with an annual income of $60,000 or more is higher in Sommer County.If the statements above are true, which of the following must also be true?

      来源:精选题库 282人已做 其他难度 77.7%正确率

    • 【逻辑CR】-15754 -OG18自测章

      Tiger beetles are such fast runners that they can capture virtually any nonflying insect. However, when running toward an insect, a tiger beetle will intermittently stop and then, a moment later, resume its attack. Perhaps the beetles cannot maintain their pace and must pause for a moment's rest; but an alternative hypothesis is that while running, tiger beetles are unable to adequately process the resulting rapidly changing visual information and so quickly go blind and stop.Which of the following, if discovered in experiments using artificially moved prey insects, would support one of the twohypotheses and undermine the other?

      来源: 301人已做 其他难度 32.2%正确率

    • 【逻辑CR】-15753 -OG18自测章

      Guillemots are birds of Arctic regions. They feed on fish that gather beneath thin sheets of floating ice, and they nest on nearby land. Guillemots need 80 consecutive snow-free days in a year to raise their chicks, so until average temperatures in the Arctic began to rise recently, the guillemots’ range was limited to the southernmost Arctic coast. Therefore, if the warming continues, the guillemots’ range will probably be enlarged by being extended northward along the coast.Which of the following, if true, most seriously weakens the argument?

      来源: 312人已做 其他难度 42.9%正确率

    • 【逻辑CR】-15752 -OG18自测章

      Some batches of polio vaccine used around 1960 were contaminated with SV40, a virus that in monkeys causes various cancers. Some researchers now claim that this contamination caused some cases of a certain cancer in humans, mesothelioma. This claim is not undercut by the fact that a very careful survey made in the 1960s of people who had received the contaminated vaccine found no elevated incidence of any cancer, since ___________.

      来源: 270人已做 其他难度 75.6%正确率

热门讨论
  • 【问题求解PS】

    If the area of the triangle above is 35,what is the value of k?*此题无图,可跳过

  • 【问题求解PS】

    If a and b are positive integers such that a – b and a/b are both even integers, which of the following must be an odd integer? 

  • 【句子改错SC】

    Sulfur dioxide, a major contributor to acid rain, is an especially serious pollutant because it diminishes the respiratory system’s ability to deal with all other pollutants. 

  • 【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.

  • 【句子改错SC】

    So dogged were Frances Perkins’ investigations of the garment industry, and her lobbying for wage and hour reform was persistent, Alfred E. Smith and Franklin D. Roosevelt recruited Perkins to work within the government, rather than as a social worker. 

  • 【数据充分DS】

    Each of the students in a certain class received a single grade of P, F, or I. What percent of the students in the class were females? (1) Of those who received a P, 40 percent were females. (2) Of those who received either an F or I, 80 percent were males. 

  • 【数据充分DS】

    Given a positive number N, when N is rounded by a certain method (for convenience, call it Method Y), the result is if and only if n is an integer and  .In a certain gas sample, there are, when rounded by Method Y,  molecules of H2 and also  molecules of O2. When rounded by Method Y. what is the combined number of H2 and O2 molecules in the gas sample?(1) The number of H2 molecules and the number of O2 molecules are each less than (2) The number of H2 molecules is more than twice the number of O2 molecules 

  • 【数据充分DS】

     If x is a positive integer, how many positive integers less than x are divisors of x?(1)x2  is divisible by exactly 4 positive integers less than x2 (2)2x is divisible by exactly 3 positive integers less than 2x.

  • 【句子改错SC】

    Officials at the United States Mint believe that the Sacagawea dollar coin will be used more as a substitute for four quarters rather than for the dollar bill because its weight, only 8.1 grams, is far less than four quarters, which weigh 5.67 grams each. 

  • 【阅读RC】

    According to the passage, which of the following is probably true of the storage spaces mentioned in highlight ? 

  • 手机注册
  • 邮箱注册
登录>







关闭图标

标题图

  • 图标

    知识库学习

    GMAT语法、逻辑、阅读、数学各单项备考知识点学习及测验
  • 图标

    在线做题

    包含GMAT各单项必考知识点题目、OG/PREP/GWD/雷哥讲义题目、难度650/680/700/730题库题目练习及题目解析
  • 图标

    在线模考

    语文套题/数学套题/全套仿真模考,包含GWD/PERP/精选模考等上百套套题模考
  • 图标

    在线测评

    适合5种不同基础的GMAT学员,测评后可自动出具分数报告及复习计划指导
  • 图标

    资料下载

    GMAT必备备考资料下载、鸡精下载、课程课件等免费下载
  • 图标

    课程学习

    注册会员后,可在GMAT课程区,选择免费直播课程及公开课程进行在线学习
×
请你选择你要查看的模考成绩单
立即开通 暂不开通
加载图片
网络异常