题目内容
呼吸气流为正常层流时,阻力主要取决于( )。
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SQL Error: select id,body,options from ***_enewstiku where sourceid='27185' and id < 2252810 and id<>'2252810' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27185' and id > 2252810 and id<>'2252810' order by id asc limit 5