BI类电动工具的工作电压不超过50 V。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='27213' and id < 2260482 and id<>'2260482' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27213' and id > 2260482 and id<>'2260482' order by id asc limit 5