.机体调节心血管的活动主要通过何种机制？（ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30938' and id < 2490212 and id<>'2490212' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30938' and id > 2490212 and id<>'2490212' order by id asc limit 5