18. People cannot be morally responsible for things over which they have no control. Therefore, they should not be held morally responsible for any inevitable consequences of such things, either. Determining whether adults have any control over the treatment they are receiving can be difficult. Hence in some cases it can be difficult to know whether adults bear any moral responsibility for the way they are treated. Everyone, however, sometimes acts in ways that are an inevitable consequence of treatment received as an infant and infants clearly cannot control, and so are not morally responsible for, the treatment they receive.
Anyone making the claims above would be logically committed to which one of the following further claims?
(A) An infant should never be held morally responsible for an action that infant has performed.
(B) There are certain commonly performed actions for which no one performing those actions should ever be held morally responsible.
(C) Adults who claim that they have no control over the treatment they are receiving should often be held at least partially responsible for being so treated.
(D) If a given action is within a certain person’s control that person should be held morally.（E）
(E) No adult should be held morally responsible for every action he or she performs.
答案：E
但我觉得D就是结论的逆否命题，不是说逆否命题就是和原命题是等价的吗，为什么D不是答案？而且陈向东在解释这道题的时候说D是原命题的逆命题，我觉得不是这样的。请教各位，D究竟是逆否命题还是逆命题？作者: mary1 时间: 2004-10-4 20:27
People cannot be morally responsible for things over which they have no control.意思为IF no control，THENcannot be morally responsible 。逆否命题应为IFmorally responsible ， THENcontrol。D为原命题的否命题。
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