其他条件不变，提高安全边际率可以提高企业的销售利润率水平„

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28015' and id < 2297320 and id<>'2297320' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28015' and id > 2297320 and id<>'2297320' order by id asc limit 5