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  • 【逻辑CR】

    The Acme Corporation has found that improvements in its information technology infrastructure allow its employees to make more decisions that are both sound and well-informed than was previously feasible. Consequently, the corporation plans to improve employee productivity by introducing new managerial techniques that delegate much of the decision-making to lower levels of the organizational hierarchy. Managers will simply set clear standards and guidelines and then allow employee teams to undertake tasks without centralized control.Which of the following, if true, would most strongly support a prediction that the Acme Corporation's plan will achieve its goal?

  • 【逻辑CR】

    Mourdet Winery:  Danville Winery's new wine was introduced to compete with our most popular wine, which is sold in a distinctive tall, black bottle.  Danville uses a similar bottle.  Thus, it is likely that many customers intending to buy our wine will mistakenly buy theirs instead. Danville Winery:  Not so.  The two bottles can be readily distinguished:  the label on ours, but not on theirs, is gold colored. Which of the following, if true, most undermines Danville Winery's response?

  • 【逻辑CR】

    In the past year Harborville has had an unusually high rate of new cases of a certain disease. An investigation revealed that over the past five years Harborville's public water supply has had a high level of pollutants. Medical researchers have hypothesized that Harborville's water is responsible for the high rate of new cases of the disease.Each of the following, if true, provides additional support for the researchers' hypothesis EXCEPT:  

  • 【逻辑CR】

    In a certain wildlife park, park rangers are able to track the movements of many rhinoceroses because those animals wear radio collars. When, as often happens, a collar slips off, it is put back on. Putting a collar on a rhinoceros involves immobilizing the animal by shooting it with a tranquilizer dart. Female rhinoceroses that have been frequently recollared have significantly lower fertility rates than uncollared females. Probably, therefore, some substance in the tranquilizer inhibits fertility.Which of the following is an assumption on which the argument depends?  

  • 【逻辑CR】

    In preparation for a large-scale tree-planting project, Thomasville has recorded the location, species, and condition of every tree in its downtown area. The results will be compared with results of the last such tree census, taken 20 years ago. Planting trees primarily from the species that turns out to have the best record of survival will assure downtown Thomasville of an abundant tree population 20 years from now.Which of the following, if true, most seriously undermines the claim that the tree-planting proposal will assure an abundant tree population?  

  • 【数据充分DS】

    【OG20-P283-350题】Is the sum of the prices of the 3 books that Shana bought less than $48?(1)The price of the most expensive of the 3 books that Shana bought is less than $17.(2)The price of the least expensive of the 3 books that Shana bought is exactly $3 less than the price of the second most expensive book.

  • 【逻辑CR】

    In parts of South America, vitamin-A deficiency is a serious health problem, especially among children. In one region, agriculturists hope to improve nutrition by encouraging farmers to plant a new variety of sweet potato called SPK004 that is rich in betacarotene, which the body converts into vitamin A. The plan has good chances of success, since sweet potato is a staple of the region’s diet and agriculture, and the varieties currently grown contain little beta-carotene.Which of the following, if true, most strongly supports the prediction that the plan will succeed?

  • 【阅读RC】

    According to the passage, the magnetic field within the Moon’s core

  • 【阅读RC】

    The passage implies that, in comparing four European countries, Duverger found that the voting rates of women and men were most different in the country in which women

  • 【数据充分DS】

    Patricia purchased x meters of fencing. She originally intended to use all of the fencing to enclose a square region, but later decided to use all of the fencing to enclose a rectangular region with length y meters greater than its width. In square meters, what is the positive difference between the area of the square region and the area of the rectangular region?(1)xy=256(2)y=4

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