第36题: [单项选择]Questions 29 to 32 are based on the passage you have just heard. A. Along a railway. B. Along a big river. C. Around the palace. D. Along an important road. 参考答案:D 答案解析:[听力原文] Where were guards stationed along in the Roman Empire [答案详解] 细节辨认题【考频:16】。本题关键句为“Guard