直流电弧的烧伤较交流电弧烧伤严重。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='27283' and id < 2260623 and id<>'2260623' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27283' and id > 2260623 and id<>'2260623' order by id asc limit 5