两个电容器，其电容均为6F，将他们并联后其总电容为（）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68466' and id < 4420827 and id<>'4420827' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68466' and id > 4420827 and id<>'4420827' order by id asc limit 5