[求助]补充222

雪落无声

222.an ad. designed to convince readers of the great durability of auto. manufactured by the D companycites as evidence the fact that over half of all auto. built by the company since 1970 are still on the road today,compared to no more than a third for any other manufacturer.


which of the following ,if true ,most strongly supports the ad.'s statement?


a.after taking inflation into account,a new D auto costs only slightly more than a new meodel did in 1970


b,the number of auto .build by D each year has not increased sharply since 1970


c owner of D auto typically keep their cars well maintained


D,since 1970,Dhas made fewer changes in teh auto it manufactures than other car companies have made in theit auto.


e,D auto have been selling at relatively stable prices in recent years


the answer is b,用排除法可以选出来，但是想不明白为什么？


A，inflation irrelative,and it will influence all auto manufacturers


c,weaken ,他因,not because D's quality is better than others,but because of the well-maintainance


d,,e,irrelative

weiyu

很简单：如果每年产量增加很快，那么自1970年以后，越新的车在D公司从1970到现在所有车的比例就会越高，所以这并不代表D公司的车more durable.fficeffice" />

paopao

A-->B, so support     : not C-->B