患者站立，于腹股沟下方扎止血带，待静脉充盈后，嘱患者快速下蹲运动15次。若曲张静脉充盈明显减退，说明（ h

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30906' and id < 2486895 and id<>'2486895' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30906' and id > 2486895 and id<>'2486895' order by id asc limit 5