在发电厂和变压站中，对直击雷的保护通常采用（   ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69003' and id < 4465911 and id<>'4465911' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69003' and id > 4465911 and id<>'4465911' order by id asc limit 5