Questions 24 to 25 are based on the follow
题型：单项选择题
问题：
Questions 24 to 25 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now listen to the news.
What is the purpose of the meeting in Luxemburg
A．To control patrol boats on the River Danube.
B．To end economic sanctions against Serbia.
C．To step up economic sanctions against Serbia.
D．To send police officers to search the river.