对一台正在运行的三相异步电动机，突然调换定子绕组的二根进线，则电机立即进入（  ）状态。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68476' and id < 4421247 and id<>'4421247' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68476' and id > 4421247 and id<>'4421247' order by id asc limit 5