→ best1yiyi: 謝謝Dustin大! 01/21 22:20
※ 引述《best1yiyi (yoyo)》之銘言：
: 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?
注意這題在分類上並非所謂的加強題（選項由下而上支持文中結論）
而是文章支持以下哪個選項（由上而下）->推論/何者為真 題型
通常看到文章中沒有明顯結論的時候，就要對題幹小心了。
: A.The virus that causes Lofgren’s disease cannot be transmitted to human
: beings by chickens.
文章中根本沒有提到「人類」，所以怎麼都推不出來～
: 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。我想請問一下A選項是哪裡不對?
: 另外想請問B選項的錯誤之處是否是在there is no way 有過度推論之嫌?
對的
: 懇請大家幫忙解惑，謝謝!
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Dustin Deng
(一戰自修760，AWA 5.5)
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※ 編輯: danyuchn (123.194.206.53), 01/20/2015 02:11:07