【单选题】A 73-year-old man with a history of chronic alcoholism has had increasing difficulty swallowing and has noticed a 3-kg weight loss over the past 2 months. On physical examina- tion, there are no remar...
【简答题】Conversation 01-2 In this section you will hear two conversations. At the end of each conversation, five questions will be asked about what was said. Both the conversation and the questions will be sp...