[CR. ] PP2-31 砒霜中毒
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.
答案 (C)
總統經過五天之後才死
而對照組在吃了砒霜之後第一天就馬上測量濃度, 且濃度比總統高出很多
這樣就能得出 (C) 結論?
真是不太懂呢...
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