发电机作为电源一般将额定电压提高(  ),以补偿输电过程的电压损耗。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69300' and id < 4503005 and id<>'4503005' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69300' and id > 4503005 and id<>'4503005' order by id asc limit 5