下列物质中，具有体液调节作用的是

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='20212' and id < 1766616 and id<>'1766616' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='20212' and id > 1766616 and id<>'1766616' order by id asc limit 5