prep2007 cr Q31 求助！

wwwlomo

之前明白了，现在突然蒙了。。。请指教啊！！

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.

非常不理解C选项啊。。
文中说的这个活过5天的人体内的a含量少于那些活超过1天的人体内的a含量。这不是很正常么？？？既然活得久肯定含量少咯。。。还是我理解错了？？
我懵了。。。。T-T

wwwlomo

berlinwang 发表于 2013-7-30 19:56
楼主注意，是超过一天，所以包含了5天，两者可以说是在天数相同的情况下比较level的，因为低于arsenic pois ...

好吧。。如果是这样那我明白了。。不过题目里的那个more than a day真心很容易被我过分解读。。捉急啊。。。谢谢啦~

berlinwang

楼主注意，是超过一天，所以包含了5天，两者可以说是在天数相同的情况下比较level的，因为低于arsenic poisoning正常超过一天的level，所以不满足此条件，推出并非由于arsenic而亡。