第17题: [单项选择]鉴别室速与阵发性室上速最有力的证据是() A. QRS波群宽大畸形的程度 B. 是否存在房室分离 C. 心室率的快慢 D. 静脉应用普罗帕酮是否可终止 E. 对迷走神经刺激的反应 参考答案:B 答案解析:下列心电图表现提示为室性心动过速:①室性融合波;②心室夺获;③房室分离,如心室搏动逆传,P波与QRS波群相关,房室分离消失,可出现1:1室房传导或2:1室房传导阻滞;④QRS波群时限超过0.14s,电
第22题: [单项选择]______ be sent for immediately A. Do you suggest which doctor should B. Which doctor do you suggest that should C. Which doctor do you suggest D. Do you suggest which doctor that should 参考答案:C 答案解析:[考点] 虚拟语气
[解析] suggest在表示“建议”的时候,suggest that…中的that从句用虚拟语气,that后面接should+动词原形,should可以省略。根据题意应用