T4，assumption In the year following one 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 income , sales has fallen on one percent. The volume of cigarettes sales is therefore strongly related to the after-tax price of a pack of cigarettes. 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 income was due to a smaller tax increase. C. The pretax price of a pack of cigarettes gradually decreased throughout the year before and 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 cigarette rises , the pretax price also rises. Ans;D , I choose B。B若否定了，就得不出结论了。不明白D为何是假设？？？D讲的是pretax price of cigarettes，是无关啊？？？
T28 Certain politicians in the country of B argue that a 50 percent that tax on new automobiles would halt the rapid increase of automobiles in B’s roads and thereby slow the deterioation of B’s air quality Although most exerts agree that such a tax would result in fewer B buying new vehicles and gradually reduce the number of automobiles on B’s roads, they contend that it would have little impact on B’s air-quality problem. Which of the following, if true in B, would most strongly support the expert’s contention about the effect of the proposal automobile tax on B’s air-quality problem.? A. Automobile emissions are the largest singly source of air pollution. B. Some of the proceeds from the new tax would go toward expanding the nonpolluting commuter rail system. C. Currently , the sales tax on new tax on new automobiles is considerably lower than 50 percent. D. Automobiles become less fuel efficient and therefore contribute to more to air pollution as they age. E. The scrapping of automobiles cause insignificant amount of air pollution Ans, I choose E， 答案是不是错了。D正好相反了啊？？？？
The stimulus state two arguments from two groups of people: Certain politicians and experts.
The Q ask you to support the expert’s contention: new tax policy would have little impact on B’s air-quality problem.
Most exerts believe that people will buy fewer automobiles. Since fewer new autos will available, people'll continue to use automobiles that they own. These old autos become less fuel efficient and cause more air pollution.
So D. strengthen experts' point that new tax policy would have little impact on B's air-quality problem, or it may even worsen the situation.
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发表于 2003-11-3 19:47:00
, I choose E， 答案是不是错了。D正好相反了啊？？？？
re-tax price1 + tax = after-tax price1
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