心电图检查时，通常采用的走纸速度是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30587' and id < 2467938 and id<>'2467938' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30587' and id > 2467938 and id<>'2467938' order by id asc limit 5