乙酰胆碱是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30290' and id < 2449221 and id<>'2449221' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30290' and id > 2449221 and id<>'2449221' order by id asc limit 5