维持DNA链结构横向稳定性的是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29023' and id < 2361997 and id<>'2361997' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29023' and id > 2361997 and id<>'2361997' order by id asc limit 5