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.（D）
(E) For a blockade of Patria’s ports to be successful, international opinion must be unanimous.
不明白答案为什么是d, 我选了a, 请高手赐教。
According to the question, to ensure an embargo to succeed, both international accord and total blockade are necessary. However, for Patria, as long as blockade is implemented, there would arise an international discord, which make it's impossible to have the two necessasities happen simontaneously. Hence, we can get the conclusion that "any trade embargo against Patria would be likely to fail at some time."
For A, the passage never mentions about the "balance of opinion". In fact, for this type of quesiton to seek an conclusion based on the information provided, you can rule out the wrong branch using unrelated words.
thanks a lot.
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