第18题: [单项选择]{{B}}Passage One
Questions 26 to 28 are based on the passage you have just heard.{{/B}} A. Bettering his way of life. B. Improving his surroundings. C. Modifying the face of the planet. D. Altering the physical features of the earth. 参考答案:A 答案解析:[听力原文]26-28
Throughout history man has changed his physical environment in order to improve his