无源二端口网络的Z参数，仅与网络的（）有关.

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32678' and id < 2599500 and id<>'2599500' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32678' and id > 2599500 and id<>'2599500' order by id asc limit 5