73是一道比较难的题目,其中最难的点就在于作者提出了6年这个fact,如何分析这个fact的用意成为解题关键。以下是我自己的分析。
73The following appeared in a memo from a manager of a car dealership.
"Ten years ago, long-term car leasing became available in our country of Mohilia as an alternative to outright car ownership, and leasing has steadily risen in popularity. For each of the last five years, the number of people leasing new cars has surpassed the number buying new cars. The average age of cars driven in Mohilia is six years; hence, if new car leases again outnumber purchases this year, it is likely that the majority of drivers will be driving leased, not individually owned, cars. Therefore, we should change the focus of our business from selling cars to leasing them."
作者的假设和潜在含义:
平均年龄是6年
-->第六年的时候,那些跑了6年的车就会报废,也就是说在五年前不管租的多还是买的多,都统统归零,可以在统计上忽略。所有车都是五年前或者更迟一些买的
-->而从5年前开始直到今天,一直是租的比买的多了
-->所以今天的局面是:总数上也是租的比买的多了。
攻击点:1)可能包括了cabs,buses等,这些车因为消耗过大,时限比一般家庭用车要短,所以可能对于家庭用车来说,平均年龄超过6年。
2)忽略了二手车。人们购买的二手车远远多于新车,那么总体情况上来说,。。。
其他攻击点俺就不班门弄斧了。