为什么Zinc感冒药那道题选D，而不是B？

lwjkm

同上，想了半天不明白，哪位NN指点一下呀？

sammy生米

哪来的题目啊？感觉无头无尾的

lwjkm

就是这道，口服藥水weaken？有個類似題，參考看看吧^^

1.         GWD-29-Q27
                

Though sucking zinc lozenges has been promoted as a treatment for the common cold, research has revealed no consistent effect.  Recently, however, a zinc gel applied nasally has been shown to greatly reduce the duration of colds.  Since the gel contains zinc in the same form and concentration as the lozenges, the greater effectiveness of the gel must be due to the fact that cold viruses tend to concentrate in the nose, not the mouth.

 

In order to evaluate the argument, it would be most helpful to determine which of the following?

 

A.       Whether zinc is effective only against colds, or also has an effect on other virally caused diseases

B.        Whether there are remedies that do not contain zinc but that, when taken orally, can reduce the duration of colds

C.        Whether people who frequently catch colds have a zinc deficiency

D.       Whether either the zinc gel or the lozenges contain ingredients that have an impact on the activity of the zinc

A.   Whether the zinc gel has an effect on the severity of cold symptoms, as well as on their duration

Answer

sammy生米

逻辑题，请在GMAT逻辑专区搜索，关键词：29-27

lwjkm

xiexie Sammy,Good luck!