题目内容
设置在管井上的防火门耐火极限不低于（）h。
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='23771' and id < 2067131 and id<>'2067131' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='23771' and id > 2067131 and id<>'2067131' order by id asc limit 5