求大牛

alexcui31707

Physician: The hormone melatonin has shown promise as a medication for sleep disorders when taken in synthesized form. Because the long-term side effects of synthetic melatonin are unknown, however, I cannot recommend its use at this time.

Patient: Your position is inconsistent with your usual practice. You prescribe many medications that you know have serious side effects, so concern about side effects cannot be the real reason you will not prescribe melatonin.

The patient's argument is flawed because it fails to consider that

(A)the side effects of synthetic melatonin might be different from those of naturally produced melatonin
(B)it is possible that the physician does not believe that melatonin has been conclusively shown to be effective
(C)sleep disorders, if left untreated, might lead to serious medical complications
(D)the side effects of a medication can take some time to manifest themselves
(E)known risks can be weighed against known benefits, but unknown risks cannot

答案是E，逻辑是因为有些药是知道side effect的好坏了，而文中的药并不知道，所以医生不能给病人开，但我不理解的是E这个怎么理解，我怎么理解都觉得有问题，这个weighed against 是怎么理解的，是说已知坏的side effect对好的是不利的，但是不知道的side effect 却不是吗？短路了，脑子

soulwangh

Weigh against = trade off = cost-- benefit balance.

alexcui31707

soulwangh 发表于 2013-12-19 10:17
Weigh against = trade off = cost-- benefit balance.

谢谢，我也觉得应该是这个，对了，有什么好的字典推荐不，我现在发现一本好的字典很重要，因为很多东西都是中文无法解释的

soulwangh

alexcui31707 发表于 2013-12-19 18:48
谢谢，我也觉得应该是这个，对了，有什么好的字典推荐不，我现在发现一本好的字典很重要，因为很多东西都 ...

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