题目内容
方程
有一正根和一负根,则实数
的取值范围( )
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku_ where sourceid='15530' and id < 2638605 and id<>'2638605' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='15530' and id > 2638605 and id<>'2638605' order by id asc limit 5