两个无源二端口的传输参数分别为，当两个二端口级联时，其复合二端口的传输参数7为（）,

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32636' and id < 2595071 and id<>'2595071' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32636' and id > 2595071 and id<>'2595071' order by id asc limit 5