下列离子方程式正确的是（     ）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='21080' and id < 1834099 and id<>'1834099' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='21080' and id > 1834099 and id<>'1834099' order by id asc limit 5