在机体体液平衡的调节中，正常渗透压的维持主要是通过

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30148' and id < 2439516 and id<>'2439516' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30148' and id > 2439516 and id<>'2439516' order by id asc limit 5