某建筑物内部共需安装50个消火栓箱，安装前对消火栓箱进行检査时，总共至少需要检查（ )个。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29269' and id < 2383207 and id<>'2383207' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29269' and id > 2383207 and id<>'2383207' order by id asc limit 5