设机器字长为16位，存储器按字节编址，CPU读取一条单字长指令后，PC值自动加_

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29994' and id < 2430750 and id<>'2430750' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29994' and id > 2430750 and id<>'2430750' order by id asc limit 5