已知u(t)=311sin(300πt－120°)V，i(t)=7.07sin(300πt＋150°)A，在相位上u比i（   ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69471' and id < 4499855 and id<>'4499855' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69471' and id > 4499855 and id<>'4499855' order by id asc limit 5