Fei Fei, Q110

[freshmanduke]

110. Animals with a certain behavioral disorder have unusually high levels of aluminum in their brain tissue. Since a silicon-based compound binds to aluminum and prevents it from affecting the brain tissue, animals can be cured to the disorder by being treated with the compound.

The argument is based on which one of the following assumptions?

A.Animals with the disorder have unusually high but invariable levels of aluminum in their brain tissue.
B.Aluminum is the cause of the disorder rather than merely an effect of it.
C.Introducing the compound into the brain tissue has no side effects.
D.The amount of the compound needed to neutralize the aluminum in an animal’s brain tissue varies depending upon the species.
E.Aluminum is never present in normal brain tissue.
答案是B
我是選C 雖然B的確沒問題
但C好像較像AT要的答案
想請問大家的意見

[Behemoth]

答案是b沒錯
證明沒有'倒果為因'
og中有類似的題目,忘了提號,就是講睡眠習慣跟離婚的那題
可以參考看看

先把邏輯主線搞清楚
再來想這答案像不像標準答案會比較好喔

[Pudding]

agree with behemoth....

另外C的問題在於: 沒有side effects 是導入了新的概念, 跟原題結論無關, 換而言之, 否定了C, 結論仍有可能成立 (很多有效的藥是會有副作用的)... 因此非原題assumption....

[freshmanduke]

原來如此
thanks for help