[单项选择]男性,25岁,患有先天性心脏病,室间隔缺损,3周来低热、乏力、咳嗽、心慌,3周前曾拔牙治疗龋齿。检查:血压110/70mmHg;心界不大,心率100次/分,律齐;肺(-),肝未及,脾肋下2cm。化验:Hb90g/L,WBC12×109/L,血沉40mm/h,尿蛋白微量,RBC10~20个/HP。超声心动图检出赘生物的部位应在(). A. 二尖瓣叶心房面 B. 肺动脉内膜面 C. 室间隔右室面 D. 室间隔左室面 E. 主动脉瓣叶左室面
第28题: [单项选择]Where did the man find his dictionary A. Because she doesn’t like it. B. Because she knows the answer. C. Because she doesn’t know how to do it. 参考答案:C 答案解析:[听力原文] M: Have you finished your homework F: No, I really don’t know how to do it.