向大牛们求助几道陈向东编著的《逻辑推理-》上面的几道题

jrinbj

第二篇 第一章 假设 部分的 第35题  第45题  第57题  第72题  很纠结啊  请指教下啊

jrinbj

补充下
45题  
Researchers have found that when wery overweigh 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.Thus newly thin persons will,therefore,ultimately regain weight until their body size again matches their metabilic rate.
a) Relatively few very overweight people who have dieted down to a new weight tend to contine to consume substantially fewer calories than do people whose normal weight is at that level
e) Because of the constancy of their metabolic rates,people who are at heir usual weight normally have as much difficulty gaining weight as they do losing it.
我知道该选a，但为什么不选e呀，觉得e是从根本上说明了问题呀

kate198501

建议：下次把题帖全一点嘛。。。

E选项讨论了正常体重的人，由于稳定的新陈代谢，通常增肥与减肥一样难度大。你觉得这跟题目描述的超重群体有关系吗？人家讲A咱们就看A，不能往B想。是不是？