Eating an apple a day doesn′t keep the doctor away,but it does r

Eating an apple a day doesn′t keep the doctor away,but it does reduce the amount of trips you?make to the drug store per year．That′s according to a new study that investigates whether there′s?any truth in the old saying． A team of researchers led by Dr Matthew Davis,of the University of Michigan School of?Nursing,asked 8,399 participants to answer survey questions about diet and health．A total of 753?were apple eaters,consuming at least 149g of raw apple per day．The remaining 7,646 were classed?as non-apple eaters．When both groups answered questions on trips to the doctor and trips to the drug?store per year,the apple eaters were found to be 27%less likely to visit the druggist for drugs． Trips to the doctor were not significantly affected by apple consumption,though．“Evidence does?not support that an apple a day keeps the doctor away．However,the small number of US adults who?eat an apple a day does appear to use fewer prescription medications,”the study concludes． Apple eaters were also found to be less likely to smoke and be more likely to have a higher?educational attainment than non-apple eaters．While apples do not compete with oranges,they do?contain some immune(免疫的)system-increasing vitamin C,which may be why apple-eaters visit?the druggist less．With over 8mg of vitamin C per medium-sized fruit,an apple can provide roughly?14%your daily recommended intake． Previous studies have also linked apple consumption to a lower risk of Type 2 diabetes(二型糖尿病),improved lung function and a lower risk of colon(结肠)cancer． What is the conclusion of the study?
A、Apple consumption has greatly reduced US adults'trips to the doctor．
B、An apple a day does keep the doctor away．
C、Apples are far more nutritious than oranges．
D、A small number of US adult apple eaters tend to take less medicine．
【正确答案】：D
【题目解析】：该题答案位于文章第三段最后一句，该句指出，研究得出的结论是，证据不支持每天吃一个苹果可以远离医生这一说法，然而，少数每天吃一个苹果的美国成年人似乎确实使用更少的处方药。D 选项是对这句话的同义转述，因此答案为 D。A 选项“苹果的食用大大减少了美国成年人看医生的次数”，文章第二段最后一句提到，吃苹果的人去药店买药的次数减少了 27%，并没有提到看医生的次数减少，A 选项错误。B 选项“一天一苹果，医生远离我”，与文章主旨相反，B 选项错误。C 选项“苹果比橙子更有营养”，文章并没有对苹果和橙子的营养价值进行比较，C 选项错误。