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你好楼主~
想请教您一道题
The gill lining of lobsters in which the disease-causing parasite An. haemophila resides is completely regenerated every 30 days. The An. haemophila parasite typically produces moderate discoloration of the gills of infected lobsters, and can occasionally lead to more chronic symptoms. However, because these parasites cannot transfer directly from infected gill lining to newly generated gill lining in their host lobster, any discoloration appearing on the gills of lobsters more than 30 days after they have been moved to parasite-free water is not due to infection by An. haemophila.
Which of the following, if true, would most weaken the argument above?
(A) Other parasites are found more frequently in lobsters than An. haemophila.
(B) Lobsters that remain in parasite-rich waters can be re-infected by new An. haemophila parasites once newly generated gill lining
has been produced.
(C) An. haemophila can also cause digestive and respiratory distress in infected lobsters.
(D) In some cases An. haemophila migrates from the gill lining to the stomach, where it can then re-infect its original host.
(E) Once infected by a particular parasite, lobsters frequently develop a strong immunity to that parasite allowing them to better resist re-infection.感觉这道题原文涉及的信息非常多,虽然看了答案能够理解,可是第一遍做题的时候应该怎么才能快速的理清逻辑关系呢?
请楼主指教谢谢
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