下图所示二端口电路的Z参数矩阵为 。  

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69422' and id < 4495109 and id<>'4495109' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69422' and id > 4495109 and id<>'4495109' order by id asc limit 5