第13题: [单项选择]Passage Three Questions 32 to 35 are based on the passage you have just heard. A. The sun is in the same direction. B. They can see the compass. C. They have made the sign on the way. D. They have the instinct to tell the direction. 参考答案:D 答案解析:[听力原文] How do birds find the way to the same place each year