一个电容与一个4uf的电容串联，总电容为3uf，则该电容为（       ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68472' and id < 4420926 and id<>'4420926' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68472' and id > 4420926 and id<>'4420926' order by id asc limit 5