标题: OG 12 CR 第60题 [打印本页] 作者: brendaqian 时间: 2011-7-9 07:10 标题: OG 12 CR 第60题
Red blood cells in which the malarial-fever parasite resides are eliminated from a person's body after 120 days. Because the Parasite cannot travel to a new generation of red blood cells, any fever that develops in a person more than 120 days after that person has moved to a malaria free region is not due to the malarial parasite.
which seriously weakens the conclusion above?
C)Many malarial symptoms other than the fever, which can be suppressed with antimalarial medication, can reappear within 120 days after the medication is discontinued
D) In some cases, the parasite that causes malarial fever travels to cells of spleen, which are less frequently eliminated from a person's body than are red blood cells
答案是D,
看了错误解释我还是没弄明白，他说：C) The argument give no reason to postulate any significant connection between the discontinuation of medication and the issue of whether symptoms can persist after a patient has been in a malaria-free region for 120 days
