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题库总题数 9470
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  • OG18自测章 题目总数:101 做题总人数:2021 平均准确率:65.2%

    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。

    • 【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: 266人已做 600难度 27.4%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: 186人已做 其他难度 75.8%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: 183人已做 其他难度 54.1%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: 178人已做 其他难度 57.3%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: 190人已做 其他难度 35.3%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: 170人已做 其他难度 75.3%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:破解版12 、精选题库 167人已做 其他难度 73.7%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: 174人已做 其他难度 36.8%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: 188人已做 其他难度 41.5%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: 163人已做 其他难度 74.8%正确率

最新讨论题目
  • 【句子改错SC】

    【OG20-P808-875题】According to recent studies comparing the nutritional value of meat from wild animals and meat from domesticated animals, wild animals have less total fat than do livestock fed on grain and more of a kind of fat they think is good for cardiac health.

  • 【句子改错SC】

    The three women, liberal activists who strongly support legislation in favor of civil rights and environmental protection, have consistently received labor's unqualifying support.  

  • 【句子改错SC】

    【OG18-P692-732题】Laos has a land area about the same as Great Britain but only four million in population, where many are members of hill tribes ensconced in the virtually inaccessible mountain valleys of the north. 

  • 【句子改错SC】

    The results of two recent unrelated studies support the idea that dolphins may share certain cognitive abilities with humans and great apes; the studies indicate dolphins as capable of recognizing themselves in mirrors—an ability that is often considered a sign of self-awareness—and to grasp spontaneously the mood or intention of humans. 

  • 【逻辑CR】

    Countries that legalized the drug X twenty years ago, because a significant percentage of the population had been using X on a daily basis without any apparent harm to the community at large, reset the benchmark for what is appropriate and proper behavior among their citizens. Since X's legalization, there has been an increase in manic depression, suicide and certain kinds of cancer. In order for Andovia, a country that has not yet legalized X,to avoid the development of such undesirable tendencies and prevent the social problems stemming from broad usage of drug X, it should close its borders and not issue visas to any tourists from countries where drug X is legal.Which of the following, if true, most seriously weakens the argument above?

  • 【阅读RC】

     【OG20-P407-476题】Which of the following, if true, would most tend to weaken the conclusions drawn from "some of this research" ?    

  • 【阅读RC】

     【OG20-P402-467题】The passage suggests that in the study mentioned in highlight the method  for gathering information about security of land tenure reflects which of  the following pairs of assumptions about Tawahka society? 

  • 【句子改错SC】

    Unlike using spices for cooking, in medicinal usage they are taken in large quantities in order to treat particular maladies. 

  • 【阅读RC】

     【OG20-P401-466题】According to the passage, Tucci and Talaga found that service guarantees, when offered by lower-priced restaurants, can have which of the following effects?

  • 【句子改错SC】

    【OG20-P798-825题】Many utilities obtain most of their electric power from large coal and nuclear operations at costs that are sometimes two to three times higher as that of power from smaller, more efficient plants that can both make use of waste heat and take advantage of the current abundance of natural gas.

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