[单项选择]Questions 11~13 are based on the following interview between a reporter and a sportswoman.When did Miss Green become a swimming star A. At the age of 15. B. At the age of 20. C. At the age of 18. D. At the age of 16.
参考答案:A 答案解析:[听力原文] 11~13 M: Congratulations on breaking the records at the recent Olympics, Miss Green ! W
第28题: [单项选择]风湿性瓣膜增厚与老年性瓣膜退行性变的区别()。 A. 前者主要累及瓣体,后者主要累及瓣环或瓣叶根部 B. 前者主要累及瓣环或瓣叶根部,后者主要累及瓣体 C. 前者主要累及主动脉瓣,后者主要累及二尖瓣 D. 前者主要累及二尖瓣,后者主要累及主动脉瓣 E. 两者无明显差别 参考答案:D