prep 2-31这个题大家帮帮忙谢谢

qianrene

31.   (31265-!-item-!-188;#058&006121)

 

The symptoms that United States President Zachary Taylor began showing five days before his death are consistent with arsenic poisoning.  Recent examination of Taylor's bones, however, revealed levels of arsenic comparable to those found in the bones of Taylor's contemporaries.  These levels are much lower than the levels of arsenic that remain in the bones of arsenic poisoning victims who live for more than a day after ingesting a lethal dose of the poison.

 

Which of the following is most strongly supported by the statements given?

 

(A) The symptoms that Taylor began showing five days before his death are consistent with poisoning other than arsenic poisoning.

(B) Taylor's death was not the result of any kind of poisoning.

(C) The symptoms that Taylor began showing five days before his death were not caused by a lethal dose of arsenic.

(D) The symptoms that Taylor began showing five days before his death grew more severe each day.

(E) It is unusual for a person who has ingested a lethal dose of arsenic to survive for more than a day.

复习了这么久还这么菜，真的想去撞墙了

既然这个总统骨头里毒药比那些人少（这些人2天就死了），5天死很正常啊

谁帮忙讲讲这题的逻辑思路啊？谢谢！

lqn0621

say-

T总统 死前五天 呈现出的症状 和 a中毒 的比较像

研究t的骨头，发现a含量和正常人差不多  （comparable to those found in the bones of Taylor's contemporaries） 是不是这样解释？——我觉得从这句话就可以判断，其实死因不是a中毒了 但存在一种可能 就是虽然因为a中毒而死，但死后a在bone的含量自动减低了，就是查不出来。

下一句话排除这种可能

说，t 骨头中的a含量 要比那些a中毒的人要少的多，

These levels are much lower than the levels of arsenic that remain in the bones of arsenic poisoning victims who live for more than a day after ingesting a lethal dose of the poison.

至于这句话 我觉得mm的理解“总统骨头里毒药比那些人少（这些人2天就死了）”

for more than a day  不能解释成 两天就死吧，应该也包括五天的 

这句的意思应该是confirm 上面那句，就是说 那些中毒而死的人，中毒身亡之后，骨头中的a含量不会减少。

所以t总统 死后bone中无a，即是说明非a中毒而死，之前的症状也不是a中毒引起的

这道题用了三分钟，虽然排除加懵对了，但是后来重新想了一下逻辑过程。

不知道对不对，nn指点

qianrene

我就是觉得这个showing five days before his death 和who live for more than a day after ingesting 有点诡异

不知道这两个数字放在这里有什么用，于是我老想把他们联系起来，但是照上面MM的解释，好象去掉了也没有什么害处嘛？

lqn0621

窃以为 more than one day 应该包含  five day的

mm 哪天考？

qianrene

14号，我只比你大一天呵呵

lqn0621

 哦~~~ 生日？还是考试日期

我615考 生日621 ~~

看来咱俩的复习进度差不多

msn说吧，交流一下最后几天的安排 站短你 

qianrene

但是我马上要出去了，去成都，我现在在家复习：）你给我留言把，大家都加油哦，我最后几天都没啥安排了感觉这3天都没可能有啥提高了，就看看数学和作文把，再上论坛看看讨论

qianrene

哪里来的太空鸟啊，翅膀都硬了还飞回老家刺激我们这些小菜鸟，我主要想发扬一向各抒己见，百家齐鸣，百花齐放的精神才没有贴答案的不过还是要谢谢你写了这么多字，我会漫漫看的，包括逗号

[此贴子已经被作者于2007-6-10 22:32:19编辑过]

qianrene

42.   (32943-!-item-!-188;#058&007554)

 

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.

既然楼上的这么怀念GMAT，能不能再帮偶看一道题啊，