第28题: [单项选择]{{B}}Passage One
Questions 26 to 28 are based on the passage you have just heard.{{/B}} A. In Africa. B. In Chicago. C. In Washington. D. In California. 参考答案:D 答案解析:[听力原文] 26-28
Exercise is beneficial to your heart. A 22 - year study was conducted by doctors in