【正确答案】 A

【答案解析】
[听力原文]<7>
The United States has announced that it's to send 1,000 more troops to Panama to increase security at Cuban refugee camps, where riots broke out last week. Officials in Washington said that the troops will be added to the 2,000 who are already in Panama. More than 200 American soldiers were injured when the Cuban boat people, angry at delays in moving them out of Panama, attacked their guards and broke out of the camps. The refugees have been in Panama since September.
该题四个选择中，A、B、D易于混淆，因为它们均在录音中被提到，但真正与题干中 American troops有关的选择是A。考生在考试的紧张情绪中可能不会仔细地阅读题干，从而为自己造成更多的困难。