一般情况下避雷针和配电构架间的气隙不应小于（）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='32667' and id < 2598268 and id<>'2598268' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32667' and id > 2598268 and id<>'2598268' order by id asc limit 5