在原码两位乘中，符号位单独处理，参加操作的数是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29993' and id < 2430678 and id<>'2430678' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29993' and id > 2430678 and id<>'2430678' order by id asc limit 5