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题库 / GMATLA-CR-60
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?
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.
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.
Reports of the health benefits of red wine have led many people in the United States to drink red wine regularly.
Cigarette smoking, which can also contribute to heart disease, is only slightly more common in France than in the United States.
Regular consumption of red wine is declining dramatically among young adults in France, and heart disease typically does not manifest itself until middle age.
红酒消费的差异在逐渐减少，但是心脏病发病率的差异没有缩小。
C 强调了美国喝红酒的人多了，是证明了红酒消费差距小。但是没解释为什么心脏病发病率差异还是没缩小。
E 法国大量年轻人不消费红酒，是证明了红酒消费差距小。同时指出心脏病发病率到中年之后才体现，所以解释了 the lack of convergence。（两国的心脏发病率差异还是很大）
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