博智教育，GMAT培训每日一题。指导教师，英吉！
For similar cars and comparable drivers, automobile insurance for collision damage has always cost more in Greatport than in Fairmont. Police studies, however, show that cars owned by Greatport residents are, on average, slightly less likely to be involved in a collision than cars in Fairmont. Clearly, therefore, insurance companies are making a greater profit on collision- damage insurance in Greatport than in Fairmont.
In evaluating the argument, it would be most useful to Compare
(A)the level of traffic congestion in Greatport with the level of traffic congestion in Fairmont
(B)the cost of repairing collision damage in Greatport with the cost of repairing collision damage in Fairmont
(C)the rates Greatport residents pay for other forms of insurance with the rates paid for similar insurance by residents of Fairmont
(D)the condition of Greatport's roads and streets with the condition of Fairmont's roads and streets
(E)the cost of collision-damage insurance in Greatport and Fairmont with that in other cities
题目分析：原文就说成本多少，撞上的可能性高低，和利润多少这三种信息，A说拥挤状况，纯属扯得一个选项。B说成本问题，先留着。C说保险费用问题，扯得有点远。D说两个地方的路况，纯属扯，杀。E说保险成本，无关。
