4片74181和1片74182相配合，具有如下 种进位传递功能。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29993' and id < 2430691 and id<>'2430691' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29993' and id > 2430691 and id<>'2430691' order by id asc limit 5