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40. (32847-!-item-!-188;#058&007552) A recent report determined thatalthough only three percent of drivers on Maryland highways equipped theirvehicles with radar detectors, thirty-three percent of all vehicles ticketedfor exceeding the speed limit were equipped with them. Clearly, drivers who equip their vehicleswith radar detectors are more likely to exceed the speed limit regularly thanare drivers who do not. The conclusion drawn above dependson which of the following assumptions? (A) Drivers who equip theirvehicles with radar detectors are less likely to be ticketed for exceeding thespeed limit than are drivers who do not. (B) Drivers who are ticketed for exceeding the speed limitare more likely to exceed the speed limit regularly than are drivers who arenot ticketed. (C) The number of vehicles thatwere ticketed for exceeding the speed limit was greater than the number ofvehicles that were equipped with radar detectors. (D) Many of the vehicles that were ticketed for exceedingthe speed limit were ticketed more than once in the time period covered by thereport. (E) Drivers on Maryland highwaysexceeded the speed limit more often than did drivers on other state highwaysnot covered in the report. 答案是B然后我选了D，这种类型的题特别不会答，就是给两种比例数据然后总体不太一样的类型。~有谁能教教我怎么做？ 50. (33327-!-item-!-188;#058&007566) When people evade income taxes bynot declaring taxable income, a vicious cycle results. Tax evasion forces lawmakers to raise incometax rates, which causes the tax burden on nonevading taxpayers to becomeheavier. This, in turn, encourages evenmore taxpayers to evade income taxes by hiding taxable income. The vicious cycle described abovecould not result unless which of the following were true? (A) An increase in tax rates tendsto function as an incentive for taxpayers to try to increase their pretaxincomes. (B) Some methods for detecting taxevaders, and thus recovering some tax revenue lost through evasion, bring inmore than they cost, but their success rate varies from year to year. (C) When lawmakers establish income tax rates in order togenerate a certain level of revenue, they do not allow adequately for revenuethat will be lost through evasion. (D) No one who routinely hides some taxable income can beinduced by a lowering of tax rates to stop hiding such income unless fines forevaders are raised at the same time. (E) Taxpayers do not differ fromeach other with respect to the rate of taxation that will cause them to evadetaxes. 说实话这道题的问题我觉得有点没理解，他问的是“除非下面哪个选项是对的，否则上面的循环就不会存在么？”，大神讲解一下吧~ | 
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发表于 2013-5-19 20:10:40
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