一道逻辑题求解释……

wtylys · 发表于 2011-6-23 10:28:47

商学院入学指导上册里109页283题讲细菌和病毒的这道？B选项为啥错啊？

sdcar2010 · 发表于 2011-6-23 10:48:10

Can you post the question here?

Most abtibotics for bacteria won't work for virus infections.

wtylys · 发表于 2011-6-23 11:04:33

A newly discovered disease is thought to be caused by a certain bacterium. However, recenty released data notes that the bacterium thrives in the presence of a certain virus, implying that it is actually the virus that causes the new disease.
Q: Which of the following pieces of evidence would most support the data's implication?
B The virus has been shown to aid the growth of bacterium, a process which leads to the onset of the disease.

sdcar2010 · 发表于 2011-6-23 11:12:28

A newly discovered disease is thought to be caused by a certain bacterium. However, recently released data notes that the bacterium thrives in the presence of a certain virus, implying that it is actually the virus that causes the new disease.
Which of the following pieces of evidence would most support the data’s implication?
(A) In the absence of the virus, the disease has been observed to follow infection by the bacterium.
(B) The virus has been shown to aid the growth of bacterium, a process which often leads to the onset of the disease.
(C) The virus alone has been observed in many cases of the disease.
(D) In cases where the disease does not develop, infection by the bacterium is usually preceded by infection by the virus.
(E) Onset of the disease usually follows infection by both the virus and the bacterium

The answer is C), which says that the virus ALONE is correlated with the disease. This would support the conclusion that the virus causes the new disease. Not the bacteria.

sdcar2010 · 发表于 2011-6-23 11:14:20

B) is simply repeats the know fact: virus and bacteria together link to the dease. But B) does not make the virus more likely to be the CAUSE of the disease.

wtylys · 发表于 2011-6-23 11:17:48

Got it

一道逻辑题求解释……

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