施工现场所有的开关箱必须安装（ ）装置。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24590' and id < 2110397 and id<>'2110397' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24590' and id > 2110397 and id<>'2110397' order by id asc limit 5