请教大家一道逻辑题目

davidaurora

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?

	Researchers do not yet know how the body produces the messenger molecules that trigger asthma attacks.
	Researchers do not yet know what makes one person's messenger molecules more easily activated than another's.
	Such a medication would not become available for several years, because of long lead times in both development and manufacture.
	Such a medication would be unable to distinguish between messages triggered by pollen and household dust and messages triggered by noxious air.
	Such a medication would be a preventative only and would be unable to alleviate an asthma attack once it had started.

为啥正确答案是E而不是D呢？我看到问题说的意思是阻止任何信息，就是说不加分辨的既阻止花粉和房间灰尘带来引起的作用，也阻止有害气体引起的作用，但是有害气体引起的是对身体有利的反应，所以我的理解是这种药不能区分这两种信息，使得信使分子对好的坏的反应都被阻止了。

请问E选项要怎么理解成削弱呢？

bonnie0715

不是D么？我以前做过的答案是D啊

gracezz

呃。。。。是D吧？？？楼主做prep run出来答案不是D？是E？

holacraig

虽然没做到过，但是应该是D吧。

xiaoyaoss

肯定是D了  以偏概全 典型错误