[讨论]再问一道最近JJ题

hirko

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 explan 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 Rubiara and 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 prostrate cancer.

D: It is possible to decrease one’s risk of getting prostrate cancer by eating certain kinds of foods, and such foods care more readily available in Rubaria than in Terland.

E: Among men in Rubaria, the death rate from prostrate cancer is significantly higher for those who do not make full advantage of Rubaria’s health care system than for those who do.

原JJ作者给的是E

有好的福利却不用，死亡比例就高

想请问一下XDJM的意见

carol1216

我选b，我对b的理解是：比如说得前列腺癌的人一般是70岁，但是terland这个地方的男性公民平均只活到65岁，也就是说他们没有机会得前列腺癌，而rubaria这个地方福利要好一些，所以可能他们男性的平均寿命要高一些，比如72岁，那么得前列腺癌的概率就大了。

而e我认为不是正确答案，如果rubaria有人有福利不用，那其他的病的死亡率也可能和terland差不多或者更高，而不应该仅仅是前列腺癌高。

欢迎讨论。

howardwang

支持E。

hirko

恍然！

本来没觉得一个对，看了carol1216的解释觉得应该B是对了……

howardwang

以下是引用carol1216在2005-9-22 13:39:00的发言：

我选b，我对b的理解是：比如说得前列腺癌的人一般是70岁，但是terland这个地方的男性公民平均只活到65岁，也就是说他们没有机会得前列腺癌，而rubaria这个地方福利要好一些，所以可能他们男性的平均寿命要高一些，比如72岁，那么得前列腺癌的概率就大了。

而e我认为不是正确答案，如果rubaria有人有福利不用，那其他的病的死亡率也可能和terland差不多或者更高，而不应该仅仅是前列腺癌高。

欢迎讨论。

这里要讨论的是为什么the percentage of the male population that dies from prostate cancer 为什么不正常的高，即使如比所说，得该病的人的年龄比平均期望寿命高，那么，如果人数多，则the percentage 依然会高。

平均期望活多少岁，与超过这个平均值的多少人得这种病，没有必然的联系。有点类似于统计学中的均值与方差的大小。

所以，B是不对的。

讨论.......

nickt

B: Most men who have prostate cancer are older than the average life expectancy for male inhabitants of Terland.其含义最多是解释:在Terland 得Prostate Cancer的人可能死亡率较高.--与 Rubaria 无关.

看原文: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-- 都是说 Rubaria 的条件好,然而结论:the percentage of the male population that dies from prostate cancer is significantly higher in Rubaria than in Terland.

所以 E

carol1216

E: Among men in Rubaria, the death rate from prostrate cancer is significantly higher for those who do not make full advantage of Rubaria’s health care system than for those who do.

翻译成中文是：在rubaria的男性公民中，那些没有充分利用医疗保障体系的公民死于前列腺癌的比例高于那些充分使用医疗保障体系的公民。

我觉得e还有错误：e完全是在rubaria内部做比较，没有将rubaria和terland做比较，就算e是个事实，也不能对rubaria的前列腺死亡率显著高于terland作出解释，因为没有充分利用（rubaria）和几乎没有什么人能购享受足够的医疗服务（terland，见题目第一句话）是不同的两个概念，没有充分利用说明也利用了，和完全没有足够的医疗服务是不同的。

hl2006

it should be B

potentially B conveys that in Terland only a small portion of males whose life expendency longer than average will have the chance to get prostate cancer.

sammaijgd

选B

E在说一个可能的事实

howardwang

以下是引用hl2006在2005-9-23 10:33:00的发言：

it should be B

potentially B conveys that in Terland only a small portion of males whose life expendency longer than average will have the chance to get prostate cancer.

觉得你对B.Most men who have prostate cancer are older than the average life expectancy for male inhabitants of Terland的理解好像有问题的。