某患者需要的氧浓度为45%时，护士应遵医嘱为患者调节的流量为（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30903' and id < 2486264 and id<>'2486264' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30903' and id > 2486264 and id<>'2486264' order by id asc limit 5