2014年，平均每家博物馆接待观众人次数约是其他文物机构的多少倍?

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='31924' and id < 2552736 and id<>'2552736' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31924' and id > 2552736 and id<>'2552736' order by id asc limit 5