发生下壁心肌梗死时出现V1导联R波增高，最可能的原因为

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30588' and id < 2467987 and id<>'2467987' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30588' and id > 2467987 and id<>'2467987' order by id asc limit 5