在具有分支负荷的网络中分支系数K总是（   ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69393' and id < 4492049 and id<>'4492049' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69393' and id > 4492049 and id<>'4492049' order by id asc limit 5