产后出血采用结扎盆腔血管止血时，首先 结扎哪一支(       )

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26888' and id < 2234136 and id<>'2234136' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26888' and id > 2234136 and id<>'2234136' order by id asc limit 5