卫气的生理功能有（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25606' and id < 2154796 and id<>'2154796' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25606' and id > 2154796 and id<>'2154796' order by id asc limit 5