OG12-CR-101

supermanlee

101. For a trade embargo against a particular country to succeed, a high degree of both international accord and
ability to prevent goods from entering or leaving that country must be sustained. A total blockade of Patria’s
ports is necessary to an embargo, but such an action would be likely to cause international discord over the
embargo.
The claims above, if true, most strongly support which of the following conclusions?
(A) The balance of opinion is likely to favor Patria in the event of a blockade.
(B) As long as international opinion is unanimously against Patria, a trade embargo is likely to succeed.
(C) A naval blockade of Patria’s ports would ensure that no goods enter or leave Patria.
(D) Any trade embargo against Patria would be likely to fail at some time.
(E) For a blockade of Patria’s ports to be successful, international opinion must be unanimous.

答案是D，我选的E。
OG的解释是：
E： The necessary condition for success is a high degree of international accord, not unanimity, so this
conclusion cannot be justified.
难道accord和unanimity不是一个意思么……-_-|求教！

michael_wind

For a trade embargo against a particular country to succeed, a high degree of both international accord and
ability to prevent goods from entering or leaving that country must be sustained. A total blockade of Patria’s
ports is necessary to an embargo, but such an action would be likely to cause international discord over the
embargo.
success:both international accord and ability to prevent
problem:prevent---->international discord
preblem---->unsuccess
至于E：封锁港口跟国际意见一致没有关系，成功封锁不需要国际意见一致，这是两个并列的条件来支持embargo的，只有封锁和一致才能实现embargo

queenie924

题目说a high degree of both international accord and ability to prevent goods from entering or leaving that country must be sustained.不是说明国际意见很重要么。。。

michael_wind

嗯，是很重要，但是题目里有both……and……限定了，必须同时满足两个条件才能成功，然后题目又说了满足了第二个禁运条件，第一个条件就出现问题，discord了，这两个条件无法平衡，最终肯定会失败的。

E选项里，搞错了因果联系，就像上面我回复所说的

painsper

我是这样理解的，题干说了三件事：
(1) international accord
(2) ability to enforce embargo
(3) success of embargo

这三件事的关系是
(1) + (2) ----------> (3)
(3) -----------------> (2)
(3) --------fail-----> (1)

所以（2）是（3）的必要而非充分条件，而（3）的成功又要求（1）+（2），现在（1）不成立，所以（3）不能成功，所以D最好
E的陈述有点像说（1）是（3）的充分条件，所以错

我也觉得这道题比较牵强，如果E的陈述更像充分条件就没有歧义了，比如E写成for a blockade of Patria's ports to be successful, as long as international opinion is unanimous.

zhaoyiqing

我觉得，不是必要充分条件的问题，而是程度的问题，原题是a high degree of international accord，而e中是unanimous也就是完全同意

huangluyaomm

结论没找对啊！

结论是封锁港口会造成国际不一致。

而题目说 封锁港口+国际一致才能有em。

D加强了，E是无关选项