第26题: [单项选择]二度Ⅰ型窦房阻滞最易误诊为() A. 窦性停搏 B. 窦性心律不齐 C. 房性期前收缩未下传 D. 二度Ⅰ型房室阻滞 E. 二度Ⅱ型房室阻滞 参考答案:B 答案解析:二度Ⅰ型窦房阻滞的心电图表现为:PP间距的变化符合文氏规律:窦性PP间距逐渐缩短而后突然延长,且最长PP间距小于最短PP间距的2倍。若不仔细分析,二度Ⅰ型窦房阻滞最易与窦性心律不齐相混淆,后者PP间距
第29题: [单项选择]Questions 26 to 29 are based on the passage you have just heard. A. Drug-use disorder. B. Nicotine dependence. C. Using tobacco. D. Alcohol disorder. 参考答案:D 答案解析:[听力原文] What were the college students more likely to have according to the research