题目内容
三相电路只要作Y形连接,则线电压在数值上是相电压的
倍()
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='32675' and id < 2599382 and id<>'2599382' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32675' and id > 2599382 and id<>'2599382' order by id asc limit 5