一个二端元件的伏安关系完全是由它本身所确定的，与它所接的外电路没有关系。( )

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32627' and id < 2594503 and id<>'2594503' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32627' and id > 2594503 and id<>'2594503' order by id asc limit 5