请问OG 10 的173 题

angelhuqi

百思不得其解,觉得答案和结论之间简直没有任何关系,

请问该如何考虑这题 ,因为是PDF文件,不知道如何拷贝下来, 所以烦请各位老师查一下OG

wycg

原文推理是:胖人代懈慢,所以当胖人减肥到一定重量时,他们还会回到原来的重量(因为代懈慢).

这个推理depend的assumption就是A说的: 胖人减肥吃的也不少

注意这里有个平衡问题,就是吃的和代懈的平衡,原文只说了一个方面.A把另外一个方面也说出来了.

请楼主再看仔细一下OG的explain.

另外建议楼主下次发贴把原问也敲上.方便大家以后查找.谢谢.

[此贴子已经被作者于2006-6-20 23:58:18编辑过]

oremping

173. Researchers have found that when very overweight people, who tend to have relatively low metabolic rates,

lose weight primarily through dieting, their metabolisms generally remain unchanged. They will thus burn

significantly fewer calories at the new weight than do people whose weight is normally at that level. Such

newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic

rate.

The conclusion of the argument above depends on which of the following assumptions?

(A) Relatively few very overweight people who have dieted down to a new weight tend to continue to consume

substantially fewer calories than do people whose normal weight is at that level.

(B) The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of

people who have been very overweight.

(C) The amount of calories that a person usually burns in a day is determined more by the amount that is

consumed that day than by the current weight of the individual.

(D) Researchers have not yet determined whether the metabolic rates of formerly very overweight individuals can be

accelerated by means of chemical agents.

(E) Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much

difficulty gaining weight as they do losing it.

angelhuqi

多谢解答, 我下次会贴上题目的.