搜索了一下,发现OG11-101尚未讨论过.

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 Patris’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 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.

答案选D,但是E.为什么错呢,OG说E This statement contradicts the given information and cannot be a justifiable conclustion.

但是我怎么看也看不出哪里有矛盾,清NN指点.3X

时隔近半年,LZ可能不用再关注此题了.曾很困惑此题,现在想明白了,与其它XDJM分享:看是否正确

题干中的such an action would be likely to cause international discord over the embargo,是指embargo succeed 两个必要条件中的另一个，也就是说对于P来说，要trade embargo成立的两个必要条件本身不相容，即达不到embargo

such an action 我觉得应该是指 a total blockade of Patria's ports

对Patria's ports 的完全blockade可能导致internationa discord.而一个成功的贸易禁运的条件是：1， international accord （破坏）2，ability to prevent goods from entering or leaving that country

所以结论应该是：D  any trade embargo against Patria would be likely to fail at some time

我认为：a total blockade of Patria's ports只是包括了prevent goods from entering or leaving。

它跟international accord 的关系是并列的。

 而Embargo -> International Accordance + Blockade

所以，international accord无法造成Blockade的成功

thx~~~~~