题目内容
矩阵
是正定的。( )
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku_ where sourceid='3328' and id < 257443 and id<>'257443' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='3328' and id > 257443 and id<>'257443' order by id asc limit 5