请教菲菲7部分的4和19提

bettyofarim

4.    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?
(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.
(E) Joggers who jog more than once a week are often active participants in other sports as well.
答案是 C。 这个没有问题。但是好象D也对呢？

19.    A greater number of newspapers are sold in Town S than in Town T. Therefore, the citizens of Town S are better informed about major world events than are the citizens of Town T.
Each of the following, if true, weakens the conclusion above EXCEPT:
(A) Town S has a larger population than Town T.
(B) Most citizens of Town T work in Town S and buy their newspapers there.
(C) The average citizen of Town S spends less time reading newspapers than does the average citizen of Town T.
(D) A weekly newspaper restricted to the coverage of local events is published in Town S.
(E) The average newsstand price of newspapers sold in Town S is lower than the average price of newspapers sold in Town T.
答案E。但是我觉得是D？ D说的是weekly newspaper 被restricted to the coverage of local events 。但是题目说的是A greater number of newspapers 。这样应该不削弱呀。E说price 在T较高。那可以使一部分人减少买报纸呀。

1.    A drug that is highly effective in treating many types of infection can, at present, be obtained only from the bark of the ibora, a tree that is quite rare in the wild. It takes the bark of 5,000 trees to make one kilogram of the drug. It follows, therefore, that continued production of the drug must inevitably lead to the ibora’s extinction.
Which of the following, if true, most seriously weakens the argument above?
(A) The drug made from ibora bark is dispensed to doctors from a central authority.
(B) The drug made from ibora bark is expensive to produce.
(C) The leaves of the ibora are used in a number of medical products.
(D) The ibora can be propagated from cuttings and grown under cultivation.
(E) The ibora generally grows in largely inaccessible places.
答案E？ 应该是D吧？好象在那里看过答案是D呀？

cranberry

d没有解释文中的问题,而且只说买了鞋子,没说是否经常用

19题以前讨论过的,D减少了一种可能,自然是削弱,E所谓的价格是不可能再影响销量的,因为销量是给定的了

cranberry

我也倾向于D,因为E也许可以说明这种情况不会发生,但并不能推翻文中的结论.