第18题: [单项选择]Passage 1 Questions 26 to 29 are based on the passage you have just heard. A. They were offered free dinners for life. B. They were recruited as guards of honor. C. They traveled freely inside the state. D. They received awards in the temple of Zeus. 参考答案:A 答案解析:[听力原文] How were the ancient athletes honored according to the passage
第21题: [单项选择]男,45岁,有高血压史。因阵发性心悸2天来诊,体检:血压120/70mmHg,心率180次/分,律齐,心音正常,无杂音。1分钟后心率降至80次/分,律齐。30秒后又回复至180次/分。最可能的诊断为(). A. 窦性心动过速 B. 阵发性心房颤动 C. 阵发性室上性心动过速 D. 阵发性心房扑动 E. 第三度房室传导阻滞 参考答案:C 答案解析:心动过速发作突然开始与终止,持续时间长短不一,症状包括心悸、焦虑不安、眩晕、晕厥、心绞痛,甚至发生心力衰竭与休克,体检时心尖区第一心音强度恒定,心律绝对规则为阵发性室上性心动过速的典型表现