漏电开关只有在有人触电时才会动作。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='27220' and id < 2260256 and id<>'2260256' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27220' and id > 2260256 and id<>'2260256' order by id asc limit 5