（    ）的埋设深度不宜小于0．6m。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='55203' and id < 3486377 and id<>'3486377' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='55203' and id > 3486377 and id<>'3486377' order by id asc limit 5