【单选题】Questions 20 and 21 are based on the following news. At the end of the news item you will be given 20 seconds to answer the questions. Now listen to the news. A police spokesman said the devices wer...
【简答题】Questions 23 to 25 are based on the following news. At the end of the news item., you will be given 15 seconds to answer the questions. Now, listen to the news. According to the news, ice from Greenla...