【正确答案】 B

【答案解析】教字细节题。新闻开头提到，萨摩亚群岛总理称南太平洋发生的海啸中，有77人丧生，随后讲到美属萨摩亚的死亡人数至少为24。前者的死亡人数是后者的3倍多。所以B为正确选项。

[听力原文]
The Prime Minister of Samoa said 77 people were killed and 150 injured by a tsunami in the South Pacific. At least 24 people died on American Samoa. Thousands of people's homes have been destroyed and the final number of deaths is expected to be higher as reports from Sydney.
A brutal act of nature has shattered parts of Samoa and neighboring American Samoa. The rescue effort is continuing with pledges of international support led by the United States. The number of dead has slowly increased since the tsunami struck after dawn and there are fears it will keep on rising as emergency teams reach isolated areas. Foreign tourists including a British toddler and a 6-year-old Australian girl are among the dead. Officials believe that many of the victims were washed out to sea as their homes were destroyed by waves reportedly up to 11 meters high.

【正确答案】 A

【答案解析】细节判断题。新闻中提到成千上万的家园被摧毁，并没有提及具体的被破坏的房屋数字，B错误。美国是国际援助行动的带头人，不是澳大利亚，C错误。新闻中没有提到引起海啸的原因，D与新闻不符。新闻最后提到，丧生的外国游客中包括一名英国儿童与一名6岁大的澳大利亚女孩。所以A正确。