E-R图中用来表示实体的图形是 （ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29839' and id < 2421758 and id<>'2421758' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29839' and id > 2421758 and id<>'2421758' order by id asc limit 5