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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?

正确答案: C

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Prep2的一道题请教

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楼主
发表于 2008-3-3 17:49:00 | 只看该作者

Prep2的一道题请教

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

可推出?

A.The symptoms that Taylor began showing five days before his death were not caused by a lethal does of arsenic

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

答案是A,是不是说,Taylor摄入的arsenic poison量不是致命的,而不是否认了他摄入的毒药种类不是arsenic?

我当时选了B,觉得它从反面说明了Taylor摄入量不是致命的arsenic呀

请指点!!谢谢!

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