GMAT考试易错题(2019/1/10) |
第1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. The complex life cycle of the Plasmodium protozoan, the causative agent of malaria, has contributed to the difficulty of devising effective public health measures to combat the disease. It took scientists centuries to deconstruct the basic relationship between protozoan, mosquito vector, and human host. Modern physiologists and epidemiologists are still working out the intricacies of malarial infection. The disease is transmitted by the bite of a female Anopheles mosquito infected with the Plasmodium parasite. Only Anopheles mosquitoes are capable of transmitting the disease, and only females take blood meals from humans. To become infected with Plasmodium, the female mosquito takes a blood meal from a human carrying the parasite in his or her blooD、Once ingested, the parasite matures in the mosquito’s gut for approximately a week, after which it migrates to the insect’s salivary glands.By mixing with the mosquito’s saliva, the parasite facilitates its transmission to a human host when the mosquito bites that human. Once in a human’s bloodstream, the parasite travels to the human’s liver.At this initial stage, the Plasmodium parasite is called a sporozoite. Within the liver, the sporozoite can form 30,000 to 40,000 daughter cells, called merozoites, which are released into the host’s bloodstream at a later date, sometimes within a week of the initial infection and sometimes as much as several months later. The merozoites seek out and attach themselves to red blood cells, in which they incubate 8 to 24 daughter cells over the next two days. When the daughter cells are mature, the red blood cell ruptures and the new parasites are released into the bloodstream to seek out red blood cells of their own. Some of the new merozoites become male and female gametocytes; if these gametocytes are ingested by a mosquito feeding on the host’s blood, they will fertilize in the mosquito’s gut to produce new sporozoites, and the cycle will continue. The symptoms that we associate with malaria--a high, recurring fever; joint pain; a swollen spleen--are caused by toxins released from the red blood cells ruptured by merozoites. The human spleen can destroy these infected blood cells, but the Plasmodium parasite counters this effect by increasing the stickiness of proteins on the blood cells’ surfaces so that the cells stick to the walls of blood vessels. If the sticky surface proteins affect a particularly large number of cells, the malaria can trans-form into a hemorrhagic fever, the most deadly form of malariA、 A、further complicating factor in the natural history of malaria is the many variants of the Plasmodium protozoan. Scientists now recognize that malaria is caused by at least six different species: P. falciparum, P. vivax, P. ovale, P. malariae, P. knowesli, and P. semiovale. Of these species, P. falciparum accounts for the majority of infections and approximately 90 percent of malarial deaths in the worlD、 The relationship of a merozoite to a sporozoite is most like which of the following A、A、mother to a daughter B、A、brother to a sister C、One of several subsidiaries spun off from a large corporation D、A、computer program to a computer E、Orange juice to an orange tree |
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第2题: A、particular rocket car can travel for sustained periods at a maximum speed of 240 miles per hour. How many minutes would it take this rocket car to travel 86 miles A、2.8 B、18 1/2 C、21 1/2 D、22 E、24 |
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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. While most people agree that the GoldenAge of comic books began with the introduction of Superman in 1938 in ActionComics #1, there is less agreement about when exactly the GoldenAge endeD、There is a general consensus, however, about the factors that brought the GoldenAge to a close: the rise of the horror comic book in the late 1940s, and the resulting backlash against comic books in the early 1950s. Superhero comic books reached their peak of popularity in the early 1940s because of all the GIs inEurope and Japan who eagerly read about Superman,Batman, and The Spirit. When these soldiers came home, they still wanted to read comic books, but they sought out more adult content. William Gaines ofEC、Comics was happy to meet the market demand with such grim and gritty titles as Weird Fantasy and TheCrypt of Terror. The creators of superhero comic books, not wanting to be left behind, responded by matching their protagonists against darker criminals in more violent encounters. These darker comic books aroused the anger of child psychologist Fredric Wertham, who believed that comic books were leading the nation’s youth into crime, violence, and drug abuse. Wertham’s book, The Seduction of the Innocent, was a national best-seller that helped bring about congressional investigations into the corrupting influence of comic books. The Senate committee that reviewed Wertham’s charges decided to create theComicsCodeAuthority, a regulatory body that prohibited comic books from mentioning sexuality, alcohol, drugs, criminal behavior, or any themes related to the horror genre. These regulations had a numbing effect on the industry.EC、Comics was nearly driven out of the comics business, and the other major players canceled many of their most prominent titles. The comics business did not recover until the Marvel revolution of the early 1960s ushered in the SilverAge. According to the passage, which of the following statements can be made about the content of Weird Fantasy and TheCrypt of Terror A、Their adult-oriented content was not suitable for young readers. B、Their grim and gritty content was a market response to the demands of soldiers home from World War Ⅱ. C、They frequently depicted violence and criminal behavior, but shied away from sexuality or drug abuse. D、Their sales surpassed those of previous best-selling titles such as Superman or Batman. E、The publication of Weird Fantasy #1 coincided with the end of the GoldenAge of comic books. |
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第4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. A、CEO is building an extra-wide garage in which to park his limousines. The garage is x feet wide, and at least 2 feet of space is required between each two cars and between the cars and the walls. Will all 9 limousines fit in the garage (1) The average width of the limousines is the square root of x. (2) x=100. |
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第5题:甲、乙两人同时从同一地点出发,相背而行.1小时后他们分别到达各自的终点A和 B、若从原地出发,互换彼此的目的地,则甲在乙到达A之后35分钟到达 B、问甲的速度和乙的速度之比是(). A、3:5 B、4:3 C、4:5 D、3:4 E.以上结论均不正确 |
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