正常分婉足月新生儿，生后不久出现面色青紫，呼吸50次/min。此时最应做的检査是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='28529' and id < 2330002 and id<>'2330002' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28529' and id > 2330002 and id<>'2330002' order by id asc limit 5