<p>患者男性，70岁，胸闷、心悸3天。心电图如图所示，其阻滞部位最可能在</p><p><img galleryimg="no" onload='javascript:if(this.width &gt; 200)this.width = 200' alt="" src="http://questionupload.haoyisheng.com/question_upload/20140525/687547c1-8090-41d1-bae4-b160e122b8a2.JPG" /></p>