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GMAT考试逻辑模拟题及答案 [2]

论文作者:留学生论文论文属性:职称论文 Scholarship Papers登出时间:2010-05-30编辑:vshellyn点击率:10622

论文字数:750论文编号:org201005301128229249语种:中文 Chinese地区:中国价格:免费论文

关键词:GMAT考试逻辑模拟题答案

f the average computer logic device is falling at the rate of 25 percent per year, and the cost of the average computer memory device at the rate of 40 percent per year. It can be concluded that if these ratess of cost decline remain constant for a period of three years, at the end of that time the cost of the average computer memory device will have declined by a greater amount than the cost of the average computer logic device.5.

Accurate information about which of the following would be most useful in evaluating the correctness of the conclusion above? (A) The number of logic devices and memory devices projected to be purchased during the next three years

(B) The actual prices charged for the average computer logic device and the average computer memory device

(C) The compatibility of different manufacturers' logic devices and memory devices

(D) The relative durability of logic devices and memory devices

(E) The average number of logic devices and memory devices needed for an average computer system

6. The population of peregrine falcons declined rapidly during the 1950's and 1960's and reached an all-time low in the early 1970's. The decline was attributed by scientists to the widespread use of the pesticide DDT in rural areas. www.51lunwen.org 

Which of the following, if true, gives the strongest support to the scientits claim?

(A) DDT was not generally in use in areas devoted to heavy industry.

(B) In the time since the use of DDT was banned in 1972, the population of peregrine falcons has been steadily increasing. (C) Peregrine falcons, like other birds of prey, abandon eggs that have fallen out of the nest, even if the eggs remain intact.

(D) Starlings, house sparrows, and blue jay-birds the peregrine falcon prey on-were not adversely affected by DDT in their habitats.

(E) Other birds of prey, such as the osprey, the bald eagle, and the brown pelican, are found in the same areas as is the peregrine falcon.

7. The price of maple syrup has jumped from 22 dollars three years ago to 40 dollars a gallon today. It can be concluded that maple-syrup harvesters have been artificially inflating prices and that governmental price regulations are necessary to control rising prices.Which of the following, if ture, casts the most doubt on the conclusion drawn above?

(A) The government already requires maple-syrup harvesters to submit their facilities to licensing by the health department. (B) Insect infestation and drought have stunted the growth of syrupproducing maple trees and caused less-abundant syrup harvests.

(C) Maple syrup is produced in rural areas that suffer from high unemployment.

(D) Technological improvements in maple-syrup harvesting have reduced production costs.

(E) Maple-syrup prices have risen many times in the past, though never before at the rate recently observed.
8. Artificial seaweed made of plastic has been placed on a section of coast in order to reverse beach erosion. The inventor of the seaweed has concluded that the recent buildup of sand on that section of coast proves that the artificial seaweed reverse beach erosion.Which of the following, if true, would most seriously weaken the inventor's conclusion?

(A) The amount of recent sand buildup on that section of coast was less than had been predicted on the basis of the results obtained in controlled experiments.

(B) B论文英语论文网提供整理,提供论文代写英语论文代写代写论文代写英语论文代写留学生论文代写英文论文留学生论文代写相关核心关键词搜索。

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