下列结构属于“实体结构”的是（ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27807' and id < 2285948 and id<>'2285948' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27807' and id > 2285948 and id<>'2285948' order by id asc limit 5