再发一次og 10th 52题

52. Most consumers do not get much use out of the sports equipment they purchase. For example, seventeen percent of the adults in the United States own jogging shoes, but only forty-five percent of the owners jog more than once a year, and only seventeen percent jog more than once a week.

Which of the following, if true, casts most doubt on the claim that most consumers get little use out of the sports equipment they purchase?

Which of the following, if true, casts most doubt on the claim that most consumers get little use out of the sports equipment they purchase?

(A) Joggers are most susceptible to sports injuries during the first six months in which they jog.

(B) Joggers often exaggerate the frequency with which they jog in surveys designed to elicit such information.

(C) Many consumers purchase jogging shoes for use in activities other than jogging.

(D) Consumers who take up jogging often purchase an athletic shoe that can be used in other sports.
   C
            

(E) Joggers who jog more than once a week are often active participants in other sports as well.
 

答案是C, 没有问题,

但是D说,慢跑的人通常喜欢买A鞋, 这不就是说明了, 买了慢跑鞋的人的数据与实际上慢跑的人的数据的相互关系是不准确, 实际上A鞋相当于一个他因. 这不也就反对了慢跑慢跑鞋这个例子的数据的可靠性么,不也就weaken了结论么?

请nn指教,不知道问题的症结再哪里?

作者的大概意思是 因为很少人jog所以jog shoes就没什么用

注意jog shoes不一定非要用来jog，所以就他因削弱

C 正好就这样说

答案是c没有问题, 我的问题是为什么D 不对

D说其实慢跑的人爱买A鞋, 我觉得是慢跑的人不用慢跑鞋的他因, 也就说明了这个原文中慢跑鞋的的例子是有漏洞的, 也就反对了原文的结论.

到底问题在哪里呢?

请nn 指教

但是D虽然说了跑步的人买其他的鞋,但是买其他鞋这件事情和鞋使用程度并没有关系.不是吗?我的理解是,他们买其他的鞋也许用的多也许用的少,并没有对去weaken原文的结论啊.

如果要用a鞋来证明use，那要另外举一个完整的例子来证明。