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? (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 . 52. The claim that most consumers do not get much use out of the sports equipment they purchase is supported by the infrequency with which jogging shoes are used for jogging. This reasoning overlooks the possibility that jogging shoes are used for other purposes; thus, choice C is the best answer. Because injured joggers are less likely to use their jogging shoes, choice A is inappropriate. If B is true, joggers use their jogging shoes even less than the study cited states. So choice B is inappropriate. Because the consumers and joggers mentioned in D and E respectively are most likely to be among those who frequently use sports equipment and whose existence the argument concedes, D and E are inappropriate. 如何C可以削弱结论 而E不行 这题我多次选了E了 OG的解释我赞成 如果E改为 (E) Joggers who jog more than once a week often use jogging shoes to actively participate in other sports as well 是不是也削弱了结论 谢谢 | 
