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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.
要么美国喝的多了 心脏病没少 要么法国喝的少了 心脏病 没多
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）
方向看反了，以为是US的心脏病多于France
不是吗？
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解释为什么法国和美国的红酒消耗量量之间的差距正在缩小，但是两国的心脏病发生率之间的差距却并没有减少
前半句解释了为什么美国和法国消费红酒的数量Narrowing，后半句解释了为什么两个国家得心脏病的人口比率没有接近（Similar），因为现在还看不出来效果，得等到中年才看得出。
脂肪影响心脏病 红酒抵消该种脂肪对心脏的影响
US & Fr 脂肪摄入量相同，但Fr红酒喝得多，所以心脏病 < US
两国红酒摄入量的差距在减小，但是心脏病率却没发生变化 （解释原因）
错选D - 法国的吸烟率更高一点，吸烟也会造成心脏病 - if true，即使有红酒，红酒摄入量相似，法国心脏病率也会提高，但是没有❌ （反题目条件）
E: 前半句解释了红酒消费量趋近的原因，后半段解释了心脏病convergence的原因
convergence :趋同
理解句意：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。
解释为什么法国和美国的红酒消耗量量之间的差距正在缩小，但是两国的心脏病发生率之间的差距却并没有减少
Per-capita consumption of saturated fats IS currently about the same in France as in the United States
b选项和这个premise矛盾，非gmat正确答案
Per-capita consumption of saturated fats is currently about the same in France as in the United States
B是在讲过去，对现在没影响
因为心脏病在middle age才有表现，现在young adults的摄入量减少并不能马上体现。
这道题 和fat无关 所以AB无关
red wine consumption↑ --> heart disease rate↓
‘The difference in regular red-wine consumption has been narrowing, but no similar convergence in heart-disease rates has occurred.’ clarify这句话就不会错
前半句解释了为什么美国和法国消费红酒的数量Narrowing，后半句解释了为什么两个国家得心脏病的人口比率没有接近（Similar），因为现在还看不出来效果，得等到中年才看得出。
少喝的那些人本来就不会很少得heart disease