标题: OG12-19就两个选项搞不清，大家来帮忙看看啊 [打印本页] 作者: homefu 时间: 2009-12-17 15:42 标题: OG12-19就两个选项搞不清，大家来帮忙看看啊 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
(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