※ 引述《best1yiyi (yoyo)》之铭言： : TN-19 #29 : 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? 注意这题在分类上并非所谓的加强题（选项由下而上支持文中结论） 而是文章支持以下哪个选项（由上而下）->推论/何者为真 题型 通常看到文章中没有明显结论的时候，就要对题干小心了。 : A.The virus that causes Lofgren’s disease cannot be transmitted to human : beings by chickens. 文章中根本没有提到「人类」，所以怎麽都推不出来～ : B.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. : C.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. : 答案是C。我想请问一下A选项是哪里不对? : 另外想请问B选项的错误之处是否是在there is no way 有过度推论之嫌? 对的 : 恳请大家帮忙解惑，谢谢! -- Dustin Deng (一战自修760，AWA 5.5) Dustin/A2GMAT 2月GMAT全科机经班： http://goo.gl/c3UlDy GMAT自修youtube频道： https://www.youtube.com/user/danyuchn A2GMAT线上解题、讨论Group： https://www.facebook.com/groups/A2GMAT/ --

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