移动某些非固定安装的电气设备时（如电风扇，照明灯），必须切断电源。（ ）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='24820' and id < 2121826 and id<>'2121826' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24820' and id > 2121826 and id<>'2121826' order by id asc limit 5