当导体的（  ）确定以后，导体的载流量也就确定了。  

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69482' and id < 4500380 and id<>'4500380' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69482' and id > 4500380 and id<>'4500380' order by id asc limit 5