像讨论一下那道gdw在考试上面出现的，逻辑体 选

yuling526

Which of the following most logically completes the passage?
Mastitisis an infection of the udder in cows that, although not dangerous,causes them to give poor-quality milk.  Most cases of mastitis arecaused by the bacterium Staphylococcus aureus, against whichantibiotics are ineffective.  However, a related bacterium,Staphylococcus simulans, quickly clears up even severe infections of S.aureus simply by displacing the bacteria.  S. simulans is nevertheless unlikely to become the preferred treatment for cases of mastitis, since ______.

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a  certain dangerous bacteria that normally cannot take hold can do so in the presence of S. simulan
b   the current resistance of S. aureus to antibiotics derives in part from a past pattern of overuse of those antibiotics

c  the milk from cows infected with S. aureus is generally not of such poor quality as to be entirely unusable

d  careful farming practice can reduce the incidence of mastitis to a minimum

e   the only symptom of mild cases of mastitis is the deterioration in the quality of the milk produced

文昌星

选什么 答案 ？
a？

luoduoduo

E ?

sprtng

同意是A...nevertheless说明S.simulan肯定有啥负面作用。。。

raylene

觉得选A  没找到GWD答案

FFcapm

A...

Tima2009

A..

yuling526

我发现我下载的GWD31里面的答案是不正确的