题目内容
关于呕血，下列哪项不正确
2021-12-31
A.病因最多见于消化性溃疡
B.出血前常有上腹部不适，恶心、呕吐
C.血中常混有食物残渣、胃液
D.酸碱反应为碱性
E.出血方式为呕出
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='30511' and id < 2463795 and id<>'2463795' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30511' and id > 2463795 and id<>'2463795' order by id asc limit 5