Which of the following statement is closest in meaning to the passage you have just heard
A．The WTO ministerial conference held at Cancun is disappointing because the poor countries could not participate in the event.
B．The Cancun ministerial meeting was intended to create a more open and equitable trading system.
C．The main objective of the Cancun conference was to help the poorest countries in the world to develop their economy.
D．Opening up the market in poor countries would have a negative impact on their national economic development.
参考答案：B
解析：[听力原文]The disappointing ministerial conference that concluded in Cancun, Mexico in September will have many ramifications, but sadly the most significant of them will be its impact on poor countries. A more open and equitable trading system would provide them with an important tool in alleviating poverty and raising their levels of economic development.
[分析]： 语义理解判断。 原文第一句提到Cancun部长会议结果颇多，但其中最重要的是对贫困国家产生的影响。接着在第二句点明更开放更公平的贸易制度将对这些国家产生巨大帮助。由此可推测，更开放更公平的贸易制度应该是这次会议的议题。因此，选项B的内容与原文相符，是正确的。 [解题关键] 正确推断主题是本题的关键。