第25题: [单项选择]Oil prices are likely to fluctuate because of A. the economic boom in many countries. B. the refusal of many countries to export oil. C. the embargo against Iraqi oil exports. D. competition among exporting countries. 参考答案:C 答案解析:对录音最后一句的细节理解可帮助答题。其他选择项的内容都不是直接原因。