开关S在时打开，开关动作前电路已处于稳态。下面正确的选项是：。（2.0）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69416' and id < 4494651 and id<>'4494651' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69416' and id > 4494651 and id<>'4494651' order by id asc limit 5