下列几种阶级中不存在于新民主主义社会的是（）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28816' and id < 2348381 and id<>'2348381' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28816' and id > 2348381 and id<>'2348381' order by id asc limit 5