大全 13-16

fei123

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 leav-

ing 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 success-

‍ful, international opinion must be unani-

mous.

答案是D，实在是不理解啊。还请牛牛们指教。