下列有关“同心环征”的描述，正确的是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='31774' and id < 2540408 and id<>'2540408' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31774' and id > 2540408 and id<>'2540408' order by id asc limit 5