推 Diablotin:唉呦 我懂了！ 哈哈你的唉呦很好笑XD 09/28 00:41
→ Diablotin:謝謝你嚕 很詳細的解說^^ 09/28 00:41
→ kudamono:教學相長啦，殺雞加油喔!! 09/28 13:30
※ 引述《Diablotin (咕嚕咕嚕)》之銘言：
: 126. The public is well aware that high blood cholesterol levels raise the
: risk of stroke caused by blood clots, but a recent report concludes that
: people with low blood cholesterol levels are at increased risk of the other
: lethal type of stroke---cerebral hemorrhage, caused when a brain artery busts. The report suggests that because blood cholesterol plays a vita role in maintaining cell membranes, low blood cholesterol weakens artery walls, making them prone to rupture. The conclusion thus supports a
: long-standing contention by Japanese researchers that Western diets better
: protect against cerebral hemorrhage than do non-Western diets.
: The argument is based on which one of the following assumption?
: (A) Western diets are healthier than non-Western diets.
: (B) Western diets result in higher blood cholesterol levels than do
: non-Western diets.
: (C) High blood cholesterol levels preclude the weakening of artery walls.
: (D) Cerebral hemorrhages are more dangerous than strokes caused by blood clots.
: (E) People who have low blood pressure are at increased risk of cerebral hemorrhage.
: 答案是B,因為文章中沒有把飲食與高血脂連起來,這個我同意
: 可是我選C,
: 因為我以為題目並沒有講清楚高血脂與c病是不是完全沒關連
: 因為題目說血脂是一個重要的因素而已阿....
: 哪位大大幫我解惑一下 謝謝你！
hi~
做假設題常常會有很多迷惑選項，但是重要的是要分清題幹中的"事實"跟"結論"，
assumption的作用就是起了一個"支持結論"的作用，也就是說沒有這個假設，
結論就無法成立。所以才會有否定weaken的這種做法。
基本上: 假設題就Two大或是lawyer等等大牛的總結中都有提過，有兩種做法
1.填補缺口
2.否定weaken
私以為此題應該是兩種做法都可以^^，但我prefer以"否定weaken"來解題
此題的題幹中:
事實: 高血脂--stroke by blood clots
低血脂--storke by cerebral hemorrhae(腦出血)
結論: 西方飲食比起非西方飲食，較能預防腦出血
選項中:
明顯的BC答案的確很糾結，分開來看
B) 否定後，西方飲食比起非西方飲食，"不會造成"比較高的血脂
--> 意即" 西方飲食比起西方飲食，相對的造成血脂程度是較低的"
--> 那不就說明了結論說"西方飲食比較不會腦出血"是錯誤的!
--> 否定weaken後，確認B為正解
C) 答案意思:高血脂排除了破壞血管壁的可能
--> 否定後，高血脂不排除有破壞血管壁的可能(也就是高血脂也有可能跟
低血脂一樣會weaken cerebral walls)
--> 這頂多只能說，哎喲，原來高血脂跟低血脂一樣有可能造成腦出血，僅此而已
--> 跟結論是扯不上邊的囉
以上是敝人的一些淺見，open to discuss~^^~
--
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.112.4.234