在使用简易呼吸器时首先应（ ）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='25619' and id < 2155576 and id<>'2155576' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25619' and id > 2155576 and id<>'2155576' order by id asc limit 5