题目内容
三相交流发电机绕组星接,
()。
2020-12-16
A.220
sin(ωt+90°)V
B.220
sin(ωt-30。)V
C.220
sin(ωt-150°)V
D.
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='32633' and id < 2594897 and id<>'2594897' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32633' and id > 2594897 and id<>'2594897' order by id asc limit 5