电动机的电磁转矩与电源电压的平方成正比。（）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='32657' and id < 2596680 and id<>'2596680' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32657' and id > 2596680 and id<>'2596680' order by id asc limit 5