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.

Why choose C？

假如是因为a lethal dose of arsenic,那么他骨头里的含量不会低于。

levels of arsenic comparable to those found in the bones of

Taylor's contemporaries正好达到lethal？

 Taylor's bones, revealed levels of arsenic comparable to those found in the bones of Taylor's contemporaries   ，These levels ..much lower than   arsenic poisoning victims ingesting a lethal dose of the poison

T 和同期的一些人有一样的含量，但这个含量比那些ingesting a lethal dose of the poison 的人一天后的量还要少很多。

  建议楼主自己先好好思考自己的思路，然后再和正确答案去比较。MS楼主常常没有看懂题目。

哦！这下看懂了！

因为就要考了，所以很急，我也知道这很不好，谢谢你的提醒！

一起加油！！！