有人能帮我解释一下为什么选B吗? 理由是什么呢? 扣谢拉哦
考古: TTGWD11-Q19（from忽然MM）
In Rubaria, excellent health care is available to virtually the entire population, whereas very few people in Terland receive adequate medical care. Yet, although the death rate for most diseases is higher in Terland than in Rubaria, the percentage of the male population that dies from prostate cancer is significantly higher in Rubaria than in Terland.
Which of the following, if true, most helps to explain the disparity between the prostate cancer death rate in Rubaria and Terland?
A. Effective treatment of prostate cancer in its early stages generally requires medical techniques available in Rubaria but not in Terland.
B. Most men who have prostate cancer are older than the average life expectancy for male inhabitants of Terland.
C. Being in poor general health does not increase one’s risk of developing prostate cancer.
D. It is possible to decrease one’s risk of getting prostate cancer by eating certain kinds of foods, and such foods are more readily available in Rubaria than in Terland.
E. Among men in Rubaria, the death rate from prostate cancer is significantly higher for those who do not take full advantage of Rubaria’s health care system than for those who do.
2楼解释的很对啊
为啥T国医疗水平不如R国，而且大多数的疾病，T国的死亡率都高于R国， 而单单是死于prostate cancer的男公民比例，T国反而远远低于R国，这是为啥呀？ B解释：因为要得prostate cancer，你至少得活到一定的年纪才有资格得这个病。。。T国人民医疗水平太低啦，平均年龄太低啦，大多数爷们都没活到这个年纪，所以得这个病的几率反而比健康之国R国还低 -----B是很好的解释
-- by 会员 Kb24 (2011/4/8 11:10:29)
