患者需输液2000ml，10小时输完，所用输液器点滴系数为15,每分钟滴数为（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30940' and id < 2490460 and id<>'2490460' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30940' and id > 2490460 and id<>'2490460' order by id asc limit 5