SDH体系规范了统一的光接口参数，光接口的位置规定为 。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30264' and id < 2448309 and id<>'2448309' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30264' and id > 2448309 and id<>'2448309' order by id asc limit 5