（多选）在造成抽样数据的误差中，以下哪些属于非抽样误差？（ ）[西安交大2008研]

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30461' and id < 2461135 and id<>'2461135' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30461' and id > 2461135 and id<>'2461135' order by id asc limit 5