“ ”成立的一个充分而不必要条件是                   （   ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='19888' and id < 1728975 and id<>'1728975' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='19888' and id > 1728975 and id<>'1728975' order by id asc limit 5