第12题: [单项选择]Questions 11 to 18 are based on the conversation you have just heard. A. This and that. B. America. C. England. D. University. 参考答案:B 答案解析:[听力原文] M: Hey, how are yon I haven’t seen you for ages. What have you been up to W: Oh, you
第14题: [单项选择]风湿性心脏病二尖瓣关闭不全伴亚急性感染性心内膜炎患者,心脏超声检查对诊断最有意义的表现是() A. 二尖瓣面积增大,闭合不佳 B. 二尖瓣腱索断裂 C. 二尖瓣反流 D. 二尖瓣瓣膜有赘生物 E. M型超声见CD段呈吊床样改变 参考答案:D 答案解析:瓣膜关闭不全较狭窄易发生赘生物和感染性心内膜炎,超声下发现二尖瓣膜赘生物是协助诊断的有力证据。