案例：女性，33岁，因呕血200ml，黑便3次伴晕厥而被抬送来诊。查体：贫血貌，腹平软，剑突下轻压痛，肝、脾肋下未及，移动性浊音阴性。为了明确诊断，首选的检查方法为

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='13321' and id < 1085730 and id<>'1085730' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='13321' and id > 1085730 and id<>'1085730' order by id asc limit 5