标题: GWD-13的几个题请教 [打印本页] 作者: ni10101010 时间: 2010-7-13 17:52 标题: GWD-13的几个题请教 In the years following an eight-cent increase in the federal tax on a pack of cigarettes, sales of cigarettes fell ten percent. In contrast, in the year prior to the tax increase, sales had fallen one percent. The volume of cigarette sales is therefore strongly related to the after-tax price of a pack of cigarettes. The argument above requires which of the following assumptions?
A. During the year following the tax increase, the pretax price of a pack of cigarettes did not increase by as much as it had during the year prior to the tax increase. B. The one percent fall in cigarette sales in the year prior to tax increases was due to a smaller tax increase. C. The pretax price of a pack of cigarettes gradually decreased throughout the year before and the year after the tax increase. D. For the year following the tax increase, the pretax price of a pack of cigarettes was not eight or more cents lower than it had been the previous year. E. As the after-tax price of a pack of cigarettes rises, the pretax price also rises. In 1992 outlaw fishing boats began illegally harvesting lobsters from the territorial waters of the country of Belukia. Soon after, the annual tonnage of lobster legally harvested in Belukian waters began declining; in 1996, despite there being no reduction in the level of legal lobster fishing activity, the local catch was 9,000 tons below pre-1992 levels. It is therefore highly likely that the outlaw fishing boats harvested about 9,000 tons of lobster illegally that year. Which of the following is an assumption on which the argument depends? A. The illegal lobster harvesting was not so extensive that the population of catchable lobsters in Belukia’s territorial waters had sharply declined by 1996 B. The average annual lobster catch, in tons, of an outlaw fishing boat is has increased steadily since 1992. C. Outlaw fishing boats do not, as a group, harvest more lobsters than do licensed lobster-fishing boats. D. The annual legal lobster harvest in Belukia in 1996 was not significantly less than 9,000 tons. E. A significant proportion of Belukia’s operators of licensed lobster-fishing boats were out of business between 1992 and 1996
For many people, household labor remains demanding even if able to afford household appliances their grandparents would find a miracle.
A. even if able to afford household appliances their grandparents would find a miracle B. despite being able to afford household appliances their grandparents would find a miracle C. even if they can afford household appliances their grandparents would have found miraculous D. although they could afford household appliances their grandparents would find miraculous E. even if they are able to afford household appliances which would have been a miracle to their grandparents 这个为什麽不选E Which of the following, if true, most logically completes the passage? A recent poll found that over 80 percent of the residents of Nalmed Province favored a massive expansion of the commuter rail system as a means of significantly easing congestion on the province’s highways and were willing to help pay for the expansion through an increase in their taxes. Nevertheless, the poll results indicate that expansion of the rail system, if successfully completed, would be unlikely to achieve its goal of easing congestion, because . A. most of people in favor of expanding the rail system reported less congestion during their highway commute as the primary benefit they would experience. B. of the less than 20 percent of residents not counted as favoring the expansion, about half claimed to have no opinion one way or the other. C. the twice-daily periods of peak congestion caused by people commuting in cars have grown from about an hour each to almost two and a half hours each in the past 20 years. D. expanding the commuter rail system will require the construction of dozens of miles of new railroads. E. the proposed expansion to the commuter rail system will make it possible for some people who both live and work at suburban locations to commute by rail. 这个有点牵强？
The spraying of pesticides can be carefully planned, but accidents, weather conditions that could not be foreseen, and pilot errors often cause much larger deposits of spray than they had anticipated. A. weather conditions that could not be foreseen, and pilot errors often cause much larger deposits of spray than they had B. weather conditions that cannot be foreseen, and pilot errors often cause much larger deposits of spray than C. unforeseeable weather conditions, and pilot errors are the cause of much larger deposits of spray than they had D. weather conditions that are not foreseeable, and pilot errors often cause much larger deposits of spray than E. unforeseeable weather conditions, and pilot errors often cause much larger deposits of spray than they had 为什麽不选E？