下列关于质点的说法，正确的是（  ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='18506' and id < 1581953 and id<>'1581953' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='18506' and id > 1581953 and id<>'1581953' order by id asc limit 5