【文章內(nèi)容簡介】 sports all its goods to Burland Island by truck. The only bridge over the channel separating Burland from the mainland is congested, and trucks typically spend hours in traffic. Trains can reach the channel more quickly than trucks, and freight cars can be transported to Burland by barges that typically cross the channel in an hour. Therefore, to reduce shipping time, Trancorp plans to switch to trains and barges to transport goods to Burland.Which of the following would be most important to know in determining whether Trancorp’s plan, if implemented, is likely to achieve its goal?A Whether transportation by train and barge would be substantially less expensive than transportation by truck.B. Whether there are boats that can make the trip between the mainland and Burland faster than barges canC. Whether loading the freight cars onto barges is very time consumingD. Whether the average number of vehicles traveling over the bridge into Burland has been relatively constant in recent yearsE. Whether most trucks transporting goods into Burland return to the mainland empty 12. GWD28Q12:Over the next few years, increasing demands on the Chattahoochee River, which flows into the Apalachicola River, could alter the saline content of Apalachicola Bay, which would rob the oysters there of their flavor, and to make them decrease in size, less distinctive, and less in demand.A. which would rob the oysters there of their flavor, and to make them decrease in sizeB. and it would rob the oysters there of their flavor, make them smallerC. and rob the oysters there of their flavor, making them decrease in sizeD. robbing the oysters there of their flavor and making them smallerE. robbing the oysters there of their flavor, and making them decrease in sizeGWD28Q13 to Q15: Carotenoids, a family of natural pigments, form an important art of the colorful signals used by many animals. Animals acquire carotenoids either directly (from the plants and algae that produce them) or indirectly (by eating insects) and store them in a variety of tissues. Studies of several animal species have shown that when choosing mates, females prefer males with brighter carotenoidbased coloration. Owens and Olson hypothesize that the presence of carotenoids, as signaled by coloration, would be meaningful in the context of mate selection if carotenoids were either rare or required for health. The conventional view is that carotenoids are meaningful because they are rare: healthier males can forage for more of the pigments than can their inferior counterparts. Although this may be true, there is growing evidence that carotenoids are meaningful also because they are required: they are used by the immune system and for detoxification processes that are important for maintaining health. It may be that males can use scarce carotenoids either for immune defense and detoxification or for attracting females. Males that are more susceptible to disease and parasites will have to use their carotenoids to boost their immune systems, whereas males that are genetically resistant will use fewer carotenoids for fighting disease and will advertise this by using the pigments for flashy display instead.13. GWD28Q13:Information in the passage suggests that which of the following is true of carotenoids that a male animal uses for detoxification processes?A. They were not acquired directly from plants and algae.B. They cannot be replenished through foraging.C. They cannot be used simultaneously to brighten coloration.D. They do not affect the animal’s susceptibility to parasites.E. They increase the chances that the animal will be selected as a mate.14. GWD28Q14:The passage suggests that relatively bright carotenoidbased coloration is a signal of which of the following characteristics in males of certain animal species?A. Readiness for mating behaviorB. Ability to fightC. Particular feeding preferencesD. Recovery from parasite infestationE. Fitness as a mate15. GWD28Q15:According to the “conventional view” referred to in lines 1415 of the passage, brighter carotenoidbased coloration in certain species suggests that an individualA. lives in a habitat rich in carotenoidbearing plants and insectsB. has efficient detoxification processesC. has a superior immune systemD. possesses superior foraging capacityE. is currently capable of reproducing16. GWD28Q16:Paperamp。Print is a chain of British stores selling magazines, books, and stationery products. In Britain, magazines’ retail prices are set by publishers, and the retailer’s share of a magazine’s retail price is 25 percent. Since Paperamp。Print’s margin on books and stationery products is much higher, the chain’s management plans to devote more of its stores’ shelf space to books and stationery products and reduce the number of magazine titles that its stores carry.Which of the following, if true, most strongly argues that the plan, if put into effect, will not increase Paperamp。Print’s profits?A. Recently magazine publishers, seeking to increase share in petitive sectors of the market, have been petitively cutting the retail prices of some of the largest circulation magazines.B. In market research surveys, few consumers identify Paperamp。Print as a book or stationery store but many recognize and value the broad range of magazines it carries.C. The publisher’s share of a magazine’s retail price is 50 p