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Eating an apple a day doesn't keep the d
Eating an apple a day doesn't keep the d
练习题库
2022-08-02
39
问题
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.How many non-apple eaters answered survey questions in the research?( )A. 149.B. 7,646.C. 753.D. 8,399.
选项
A. 149.
B. 7,646.
C. 753.
D. 8,399.
答案
B
解析
由第二段前三句可知,总共有8,399人回答了问卷调查的问题;总共有753名吃苹果的人,他们每天至少消耗149克生苹果;剩下的7,646人被归类为不吃苹果的人,故选B。
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