某MFS4型灭火器要放置在托架上，托架安装后，应校核，使用（ ）kg荷载，校核5 min内，不出现松动、脱落、断裂和明显变形等现象。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='23345' and id < 2038258 and id<>'2038258' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='23345' and id > 2038258 and id<>'2038258' order by id asc limit 5