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题库 / GMATLA-CR-101
Lofgren's disease has been observed frequently in commercially raised cattle but very rarely in chickens. Both cattle and chickens raised for meat are often fed the type of feed that transmits the virus that causes the disease. Animals infected with the virus take more than a year to develop symptoms of Lofgren's disease, however, and chickens commercially raised for meat, unlike cattle, are generally brought to market during their first year of life.
Which of the following is most strongly supported by the information provided?
The virus that causes Lofgren's disease cannot be transmitted to human beings by chickens.
There is no way to determine whether a chicken is infected with the Lofgren's disease virus before the chicken shows symptoms of the disease.
A failure to observe Lofgren's disease in commercial chicken populations is not good evidence that chickens are immune to the virus that causes this disease.
An animal that has been infected with the virus that causes Lofgren's disease but that has not developed symptoms cannot transmit the disease to an uninfected animal of the same species.
The feed that chickens and cattle are fed is probably not the only source of the virus that causes Lofgren's disease.
①发病的症状得一年之后才可以显现
②鸡一年的时候就被杀了
所以只能得出结论：通过看症状是不能判断这个鸡有没有生病的 但是不能说没有其他方法去检验
同问，呵呵
仔细考虑一下，B还是走的远了点，根据题目提供的信息，这种病毒在鸡身上能不能有其他的检测方法，并不知道，但是鸡虽然没有表现出症状，并不代表鸡身上没有这种病毒登录 或 注册 后可以参加讨论
B讨论是否有方法能够检测出疾病。 题目讨论的是看起来鸡不得病的原因，B讨论的是检测疾病的方法，不是同一件事情，所以不选。
Which of the following is most strongly supported by the information provided? 所提供信息最支持下面哪个
B 选项加强论句
c 是原文得出的推理
c是原文可以得出的结论
提问的方式很tricky，是问，文章最能给哪个选项提供支撑，而不是，哪个选项最能加强文章。B是加强文章的，而非被文章加强。
题目是问哪个选项被原文支持，归纳总结题，忠实于原文
ABDE的信息，原文没有说过；
C：逻辑链的flaw在于，认为鸡没有symptom就没有感染，但其实是检测不出来。