称肝为“罢极之本”，主要是由于肝有下列哪种功能

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28176' and id < 2307890 and id<>'2307890' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28176' and id > 2307890 and id<>'2307890' order by id asc limit 5