实际应用中，电路的过渡过程经（　　）时间，可认为过渡过程基本结束。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68472' and id < 4420921 and id<>'4420921' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68472' and id > 4420921 and id<>'4420921' order by id asc limit 5