若电源星型接法要求三相负载中各相电压均为电源相电压，则负载应接成（）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='32675' and id < 2599399 and id<>'2599399' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32675' and id > 2599399 and id<>'2599399' order by id asc limit 5