手外伤出血用止血带时，应至少每隔多长 时间放松止血带一次（）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25670' and id < 2157540 and id<>'2157540' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25670' and id > 2157540 and id<>'2157540' order by id asc limit 5