OG-59

我爱欧洲

59.Certain messenger molecules fight damage to the lungs from noxious air by telling the muscle cells encircling
the lungs’ airways to contract. This partially seals off the lungs. An asthma attack occurs when the
messenger molecules are activated unnecessarily, in response to harmless things like pollen or household
dust.
Which of the following, if true, points to the most serious flaw of a plan to develop a medication that would
prevent asthma attacks by blocking receipt of any messages sent by the messenger molecules referred to
above?
(A) Researchers do not yet know how the body produces the messenger molecules that trigger asthma
attacks.
(B) Researchers do not yet know what makes one person’s messenger molecules more easily activated than
another’s.
(C) Such a medication would not become available for several years, because of long lead times in both
development and manufacture.
(D) Such a medication would be unable to distinguish between messages triggered by pollen and household
dust and messages triggered by noxious air.
(E) Such a medication would be a preventative only and would be unable to alleviate an asthma attack once
it had started.

答案选d

我爱欧洲

我的疑惑在D和E。D项的解释是药物压制作用不仅存在于必要情况还存在于多余情况（Choice D asserts that this suppression would occur not only when the molecules’
action is superfluous, but also when it is necessary. This would be a serious flaw in the medication, so D is the
best answer.），所以是该药物的一个FLAW。E项的解释为该药物对本不具有的功能目的不起作用（Choice E asserts merely that the medication would be unable to do something it was not intended to do.），所以不是FLAW。那如果D是FLAW，说明该药物虽然能阻止ASTHMA，但有副作用，该药不完善。E也是说该药物虽然能阻止ASTHMA，但不能缓解症状，所以该药不完善。也是FLAW啊！

OG汇总贴里没有这题，向大家请教。

我爱欧洲

自己顶一下，也是为补全OG汇总的全部题。高手们看看吧。

wingkim

Which of the following, if true, points to the most serious flaw of a plan to develop a medication that would prevent asthma attacks by blocking receipt of any messages sent by the messenger molecules referred to
above?

Are you attent the red word?