Re: PP3-CR-104

看板GMAT (GMAT入學考試)作者dounts (忘記過去)時間13年前 (2012/10/13 01:11)推噓1(1推 0噓 0→)

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※ 引述《chenemily (天天保持好心情)》之銘言： : Healthy lungs produce a natural antibiotic that protects them from infection : by routinely killing harmful bacteria on airway surfaces. People with cystic : fibrosis, however, are unable to fight off such bacteria, even though their : lungs produce normal amounts of the antibiotic. The fluid on airway surfaces : in the lungs of people with cystic fibrosis has an abnormally high salt ^^^^^^^^^^^^^^^ : concentration; accordingly, scientists hypothesize that the high salt : concentration is what makes the antibiotic ineffective. : Which of the following, if true, most strongly supports the scientists’ : hypothesis? : B. A sample of the antibiotic was capable of killing bacteria in an : environment with an unusually low concentration of salt. ^^^^^^^^^^^^^ : C. When lung tissue from people with cystic fibrosis is maintained in a : solution with a normal salt concentration, the tissue can resist bacteria. ^^^^^^^^^^^^^^^^^^^^^^^^^ 要強調 high salt 就是原因用 low 來做對比是不好的方式比方說高體脂肪容易有心血管疾病我們要來加強只需要說一般體脂肪的人沒有心血管疾病即可如果說脂肪過低的人不會有心血管疾病有可能在暗示說一定要體脂肪低才不會有心血管疾病一般體脂肪還是有可能有心血管疾病就沒有強調 "高體脂肪 --> 心血管疾病" 的因果關係理解意義就好不要把所有的 CR 題都用速解法解 : 請問一下這題因果是high salt concentration-----antibiotic ineffective : 然後刪到剩B&C : 然後我覺得B&C 都是無因無果的型式 : 可是為什麼正解是B C有哪裡錯嗎 : 謝 -- 每月專修及機經家教課程幫助各位複習數學更有效率更確實 GMAT 留學考試 - 勇闖夢想的新鮮人 http://ndxica.pixnet.net/blog -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 114.42.97.89 ※ 編輯: dounts 來自: 114.42.97.89 (10/13 01:12)