根据罗马皿的诊断标准，功能性消化不良可分为（  ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32088' and id < 2561277 and id<>'2561277' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32088' and id > 2561277 and id<>'2561277' order by id asc limit 5