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Athletic coach: A recent survey of secondary school athletes revealed that those who use vitamins, protein powder, and other similar nutritional supplements were much more likely to be successful in athletics than those who do not. This is clear evidence that such supplements are indeed effective. The athletic coach's argument is most vulnerable to criticism on which of the following grounds? A. It overlooks the possibility that athletes might not reveal anything that might be perceived as giving them an unfair advantage. B. It overlooks the possibility that athletes who are more likely to achieve athletic success even without nutritional supplements are more likely to use such supplements. C. It takes for granted that athletes engaged in team sports would be affected by supplements in the same way as competitors in nonteam sports. D. It fails to adequately address the possibility that among those who achieve athletic success, some might be more fit than others regardless of whether they take supplements or not. E. It fails to adequately address the possibility that what is true of athletes as a group might not be true of certain individual athletes.
Over the past 30 years in the country of Mama, there has been a dramatic increase in the proportion of citizens who are over age sixty-five. New medical treatments made possible by advances in medical knowledge have contributed to increases in the average life span. This increase in medical knowledge, therefore, must have caused the increase in the proportion of Marnese citizens over age sixty-five. Which of the following, if true of Mama, most seriously weakens the argument above? A. There has been a marked decrease in the birth rate over the past 30 years. B. Over the past 30 years there has been a marked increase in the funding available for medical research. C. The number of citizens who have undergone surgery has increased each year over the past 30 years. D. The infant mortality rate has remained stable over the past 30 years. E. Medical techniques are now available to treat certain diseases that particularly affect people over the age of sixty-five.
参考答案：BA
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发表于 2021-11-1 19:32:49
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