机械性肠梗阻，当腹部平片中显示下列何项变化 时应考虑绞窄性肠梗阻的可能（ ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='25456' and id < 2144563 and id<>'2144563' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25456' and id > 2144563 and id<>'2144563' order by id asc limit 5