[单项选择]患者,男性,2年前患细菌性心内膜炎,经治疗痊愈。近日患者常感心悸、心前区不适,偶有气促、呼吸困难等症状。X线检查左心房明显增大,向左下方延长。主动脉结隆起,升主动脉和弓部增宽,左心室和主动脉搏动幅度增大。近日患者病情加重,出现心绞痛,该患者的治疗原则为() A. 皮穿刺气囊导管扩张分离术 B. 二尖瓣修复成形术 C. 二尖瓣置换术 D. 需尽早施行人工主动脉瓣膜替换术 E. 抗心律失常治疗
第5题: [单项选择]The driver stopped his car so abruptly that he was hit by the cab right behind him. A. impolitely B. violently C. suddenly D. maladroitly 参考答案:C 答案解析:[解析] 本题是说这位司机停车太突然,以至于被在他后面行驶的出租车撞到。abruptly的意思是“突然地,唐突地”。四个选项中,impolitely的意思是“无礼地,没规矩地”,violently的意
第32题: [单项选择]Being color-blind, Sally can't make a ______ between red and green. A. difference B. distinction C. comparison D. division 参考答案:B 答案解析:make a distinction between和make a comparison between都是正确的搭配,但根据题意,因为是色盲,所以不能区分红色和绿色,所以不是比较或对比,而是区别,因