| GMAT考试每日一练（2019/7/1） |
| 第1题：Which of the following is equal to x24 for all positive values of x A、x12+x12 B、(-x12)-2 C、(x6)6 D、(x2)(x3)(x4) E、(x72)1/3 |
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| 第2题：等差数列an)中，a5＜O．a6＞0，且a6＞|a5|,Sn是前n项之和．则()． A．S1，S2，S3均小于0，而S4，S5，…均大于0 B．S1，S2，…，S5均小于0，而S6，S7，…均大于0 C．S1，S2，…，S9均小于0，而S10，S11，…，均大于0 D．S1，S2，…，S10均小于0．而S11，S12．…均大于0 E．以上结论均不正确 |
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| 第3题：The questions in this group are based on the content of a passage.After reading the passage, choose the best answer to each question.Answer all questions following the passage on the basis of what is stated or implied in the passage. One of the biggest questions facing the art world today is the dilemma over the repatriation of cultural treasures.Although the subject has not been widely noted by the general public, in recent decades museums and art dealers have repeatedly faced off against the representatives of nations and ethnic groups whose cultural legacies have been robbed by the rapacious collecting of these so-called art experts.Advocates of repatriation have argued that cultural treasures should be returned to their nations of origin, both because of basic fairness and because the artwork and cultural artifacts in question are best understood within their local context. Several prominent museums, most notably theBritish Museum in London and the Louvre in Paris, have defended themselves on the grounds that they can better protect and preserve these cultural treasures than can the developing nations and impoverished ethnic groups that frequently seek their return. They further argue that more people can see the treasures if they are proudly displayed in a major museum, as opposed to some poorly funded national museum in a backwater country; evidently, the quantity of viewers is more important than the relevance of the art and artifacts to the viewer. The arguments of the museum curators fall apart in an instance such as theElgin Marbles. These majestic marble sculptures, which once graced the Parthenon on theAcropolis inAthens, were stolen by LordElgin in the nineteenth century and given to theBritish Museum, which holds them to this day. The people ofAthens have built a beautiful, modern museum on theAcropolis to display theElgin Marbles and other treasures from the Greek cultural heritage, so there can be no valid argument that the Greeks are unable to house the sculptures properly. Furthermore, more people visit theAcropolis every day than visit theBritish Museum. What is the purpose of the final sentence of the passage A、To express pride in the cultural treasures ofAthens B、To refute the argument that more people can see theElgin Marbles at theBritish Museum than at theAcropolis C、To comment on the relative number of tourists at two ofEurope’s most famous tourist attractions D、To express concern that the large number of tourists on theAcropolis will damage theElgin Marbles, should they be returned E、To provide an appropriate end to a rousing debate |
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| 第4题： A、hiker walked for 3 days. She walked 18 miles on the first day, walking 3 miles per hour. On the second day she walked for one less hour, but she walked one mile per hour faster than on the first day. On the third day she walked the same number of hours as on the first day but at the same speed as on the second day. How many miles in total did she walk A、24 B、44 C、58 D、60 E、62 |
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| 第5题：The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether A、Statement (1)ALONE、is sufficient, but statement (2) alone is not sufficient. B、Statement (2)ALONE、is sufficient, but statement (1) alone is not sufficient. C、BOTH statements TOGETHER are sufficient, but NEITHER statementALONE、is sufficient. D、EACH statementALONE、is sufficient. Ｅ. Statements (1) and (2) TOGETHER are NOT sufficient. The figure above shows the shape of a flowerbeD、If arcs WZ and XY are semicircles and WXYZ is a square, what is the area of the flowerbed  (1) The perimeter of square WXYZ is 24. (2) The diagonal  |
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| 第6题：The questions in this group are based on the content of a passage.After reading the passage, choose the best answer to each question.Answer all questions following the passage on the basis of what is stated or implied in the passage. Congressman Hastings has proposed thatCongress should abolish theElectoralCollege system for electing the president and replace it with a system of direct popular election. TheElectoralCollege system is flawed, he argues, because it runs directly counter to the democratic principle that every citizen’s vote should count equally. Because of the winner-take-all system in which the candidate who receives the most popular votes in a state receives all of that state’s electoral votes, the citizens who voted for the losing candidate are effectively disenfranchised from the national election, even if their candidate lost the state by only a handful of votes. Moreover, because each state’s number of electors is the same as its number of members ofCongress, the citizens of small states get a disproportionately larger vote than citizens of more populous states. In the 1988 election, for example, the combined voting-age population of the six least populous states--Alaska,Delaware, NorthDakota, SouthDakota, Vermont, and Wyoming--was 3,119,000. These six states held 21 electoral votes among them. Florida, with a voting-age population of 9,614,000, also had 21 electoral votes.Because of inequities of this nature, there have been four presidential elections in which the candidate who won theElectoralCollege actually lost the popular vote: 1824, 1876, 1888, and 2000. Congressman Markham has argued that Hastings’s proposed changes are unnecessary and even dangerous. First of all, he argues, theElectoralCollege system, whatever its flaws, has resulted in a stable democratic government for more than 200 years, which shows that it is doing something right. Second, the winner-take-all system helps create decisive majorities in theElectoralCollege, thereby reducing the problem of disputed elections that we might see in the event of direct popular elections. Third, the current system of allocating electors helps protect the interests of small states, which would be largely neglected in favor of large states if theElectoralCollege were based entirely on population. Protecting these states’ rights is essential to upholding the principle of federalism (in which the states and the federal government maintain distinct powers). When theElectoralCollege system was first formalized by the TwelfthAmendment in 1804, a direct popular vote would have been impossible to implement, and theElectoralCollege was probably the best way to approximate the will of the people.Advances in technology and communication, however, now mean that a direct popular vote would be as simple, if not simpler, to administer than the currentElectoralCollege system.Alternative ways to reform the system would be to do away with the winner-take-all system of state electors, to base the numbers of electors strictly on state populations, or to have a direct popular election but to weight the votes from different states differently in order to preserve the influence of small states. According to the information given in the passage, which of the following statements about Florida and SouthDakota is most accurate A、Florida is a larger state in area than SouthDakotA、 B、SouthDakota has a larger population than FloridA、 C、The ratio of members ofCongress to electors in theElectoralCollege is lower for the state of Florida than it is for SouthDakotA、 D、SouthDakota has more members ofCongress per voting-age citizen than Florida does. E、A、higher percentage of the voting-age population in SouthDakota exercises its constitutional right to vote than is observed among the voting-age population of FloridA、 |
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| 第7题：The questions in this group are based on the content of a passage.After reading the passage, choose the best answer to each question.Answer all questions following the passage on the basis of what is stated or implied in the passage. Dear Sirs, Given all the coverage that the emergence of hybrid cars has received in your pages in recent months, your readers may be interested to learn that gasoline-electric hybrids are not a new phenomenon at all, but rather the latest incarnation of an idea that has been kicking around for over a century. Indeed, the hybrid car has been around almost as long as the automobile itself. At the turn of the twentieth century, as the automotive age dawned, three power-generating technologies competed for dominance: steam, gasoline, and electricity. In the year 1900, steam was well known as the power source of the industrial revolution, and electricity was widely regarded as the power source of the future, so it was not at all obvious that internal combustion engines burning a fractional distillate of crude petroleum would have any particular edge in this race for the powertrains ofAmericA、Indeed, when engineer H. Piper filed the first patent application for a gasoline-electric hybrid motor in 1905, his intention was to use the gas to give a little kick to his perfectly serviceable electric engine. His goal: an engine that could accelerate from 0 to 25 miles per hour in 10 seconds. Piper achieved his goal.Electric and hybrid-electric engines powered more than 35,000 vehicles sold in 1912. These cars were perfectly adequate for the time, but over the following decade they mostly disappeared from the market, through no fault of their own. The cause of their decline was the spectacular improvements in the cost and performance of gasoline-powered cars.An onslaught of fast and cheap internal combustion cars from Ford, General Motors, andBuick essentially buried the electric and electric-hybrid motors by the 1920s. Continuing performance improvements in internal combustion engines and inexpensive gas pretty much kept hybrids buried until the oil crises of 1973 and 1979 gaveAmericans a reason to start thinking about fuel efficiency.Engineers had the motivation to think about fuel-efficient hybrids, but they still lacked the means to make hybrids economically competitive with gas-powered cars, because the performance of gas-electric engines lagged far behind that of gas-powered engines in acceleration, top speed, and cruising range. Dramatic improvements in electronics and computer technology during the 1990s, however, finally made the hybrid a reality.Advances in battery performance and, most importantly, computer-guided electric power transfer created a car that could drive like a regular car, but do so on half the tank of gas.As another century dawns, perhaps we are entering into a new automotive age. The purpose of the article could best be summarized as which of the following A、To correct a mistaken impression about the performance of gasoline-electric hybrid cars B、To educate readers about the economic and technological potential of hybrid cars C、To refute a factually inaccurate statement made previously in the publication regarding the history of hybrid cars D、To acquaint readers with the history of gasoline-electric hybrid cars E、To educate readers about technological innovations at the dawn of the automotive age |
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| 第8题：.Darwinwasnotthefirsttoadvanceatheoryofevolution;histremendousoriginalitylayinthefactthatheproposedtheideaofnaturalselectionasthemeansbywhichevolutionworked. byGemjhttp://www.chasedream.com/（） (A)layinthefactthatheproposedtheidea (B)layinthefactofhisproposingtheidea (C)laidinthefactofhisproposingtheidea (D)laidinhisproposal (E)layinhisproposal |
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| 第9题：The following questions present a sentence, part of which or all of which is underlineD、Beneath the sentence, you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is best, choose the first answer; otherwise choose one of the others. These questions test correctness and effectiveness of expression. In choosing your answer, follow the requirements of standard writtenEnglish; that is, pay attention to grammar, choice of words, and sentence construction.Choose the answer that produces the most effective sentence; this answer should be clear and exact, without awkwardness, ambiguity, redundancy, or grammatical error. Medical experts have amassed evidence concluding that users of smokeless tobacco be more prone to heart disease, hypertension, and mouth cancers than people who do not use smokeless tobacco. A、be more prone to heart disease, hypertension, and mouth cancers B、are proner to heart disease, hypertension, and mouth cancers C、are more prone to heart disease, hypertension, and mouth cancers D、experience heart disease, hypertension, and mouth cancers at heightened rates E、suffer heart disease, hypertension, and mouth cancers at a higher risk |
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| 第10题：The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether A、 Statement (1)ALONE、is sufficient, but statement (2) alone is not sufficient. B、 Statement (2)ALONE、is sufficient, but statement (1) alone is not sufficient. C、BOTH statements TOGETHER are sufficient, but NEITHER statementALONE、is sufficient. D、EACH statementALONE、is sufficient. Ｅ. Statements (1) and (2) TOGETHER are NOT sufficient. Is the positive integer y a prime number (1) 80＜y＜95 (2) y=3x+1, where x is a positive integer |
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