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A recent report determined that although only three percent of drivers on Maryland highways equipped with radar detectors, thirty three percent of all vehicles ticketed for exceeding the speed limit were equipped with them. Clearly, drivers who equip their vehicles with radar detectors are more likely to exceed the speed limit regularly than are drivers who do not. The conclusions drwan above depends on which of the following assumptions? A. Drivers who equip their vehicles with radar detectors are less likely to be ticketed for exceeding the speed limit than are drivers who do not B. Drivers who are ticketed for exceeding the speed limit are more likely to exceed the speed limit regularly than are drivers who are not ticketed C. The number of vehicles that were ticketed for exceeding the speed limit was greater than the number of vehicles that were equipped with radar detectors D. Many of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the time period covered by the report E. Drivers on Maryland highways exceeded the speed limit more often than did drivers on other state highways not covered in this report 本题答案是B，可我理解不了本题的逻辑，请各位指教！谢谢拉 | 
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发表于 2007-1-14 17:17:00
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