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Why do people become too fat It is indeed unfortunate that in our modern era of technologic and scientific achievement, there is
Why do people become too fat It is indeed unfortunate that in our modern era of technologic and scientific achievement, there is
admin
2012-12-22
37
问题
Why do people become too fat
It is indeed unfortunate that in our modern era of technologic and scientific achievement, there is no adequate explanation for a seemingly simple question: "why do people become too fat and what can be done to prevent it?" about 50 million men and 60 million women between the ages of 18 and 79 are "too fat" and need to reduce excess weight. This amount to about 377 million kg of excess fat for men and 667 million kg for women, or a total of t044 million kg (2297 million 1b) for the United States adult population! If the overfat men and women dieted by consuming 600 fewer calories each day to reduce to a "normal" value of body fat (achievable in 68 days for men and 101 days for women), the reduced caloric intake would equal 5.7 trilling calories. Translating this into fossil fuel energy and considering such factors as the energy required to plant, cultivate, harvest, feed, process, transport, wholesale, retail, acquire, store and cook the food, the annual energy savings would be equal to that required to supply the residential electric demands of Boston, Chicago, san Francisco and Washington DC, or 13 billion gallons of gasoline to fuel 900,000 autos per year. Until recently, the major cause of obesity was believed to be overeating. However, if gluttony (贪食) and overindulgence were the only factors associated with an increase in body fat, the easiest way to permanently reduce would surely to be cut back on food. Of course, if it were that simple, obesity would soon be eliminated as a major health problem. There are obviously other factors operative such as genetic, environmental, and social influences. However, these causes probably overlap. It seems fairly certain that the treatment procedures devised so far, whether they be diets, surgery, drugs, psychologic methods, or exercise, either alone or in combination, have not been particularly successful in solving the problem on a long-term basis. There is nonetheless, optimism that as researchers continue to investigate the many facets of. obesity, as well as to test and quantify various treatment modes, significant progress can be made to conquer this major health problem.
选项
A、Right
B、Wrong
C、Not mentioned
答案
B
解析
根据文章第三句,答案应在667除于1044,应为60%。
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职称英语
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