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标题: GWD9 Q16 谢谢大家！ [打印本页]

作者: saya630 时间: 2010-11-17 21:29
标题: GWD9 Q16 谢谢大家！

A diet high in saturated fats increases a person’s risk of developing heart disease. Regular consumption of red wine reduces that risk. Per-capita consumption of saturated fats is currently about the same in France as in the United States

, but there is less heart disease there than in the United States because consumption of red wine is higher in France. The difference in regular red-wine consumption has been narrowing, but no similar convergence in heart-disease rates has occurred.

Which of the following, if true, most helps to account for the lack of convergence noted above?

A.Consumption of saturated fats is related more strongly to the growth of fatty deposits on artery walls, which reduce blood flow to the heart, than it is to heart disease directly.

B.Over the past 30 years, per-capita consumption of saturated fats has remained essentially unchanged in the United States but has increased somewhat in France

C.Reports of the health benefits of red wine have led many people in the United States

to drink red wine regularly.

D.Cigarette smoking, which can also contribute to heart disease, is only slightly more common in France than in the United States

E.Regular consumption of red wine is declining dramatically among young adults in France

, and heart disease typically does not manifest itself until middle age.
麻烦你们帮我解答一下谢谢！！！

作者: sdcar2010 时间: 2010-11-17 22:13
A is the answer.

Pay attention to risk of a disease vs. rate of disease.

作者: saya630 时间: 2010-11-18 00:58
可是答案是E...

作者: sdcar2010 时间: 2010-11-18 01:21
Then I am at my wit's end.

作者: fudanwyh 时间: 2010-11-18 07:15
Convergence: gap between the wine consumption in France and in US is narrowing, the gap between the heart disease in France and in US should be down too..

Lack of convergence: heart disease rate in France is still the same lower than in US.

E explained this phonomena, since those young French people dont drink wine too much (they contributed to the deline of wine consumption), yet they dont have heart disease (they didn't make the heart disease rate go higher in France). "heart disease typically does not manifest itself until middle age" means those potential heart dicease is not counted in the rate in France yet.

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