假设某台式计算机的内存储器容量为256MB，硬盘容量为40GB。硬盘的容量是内存容量的

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='57247' and id < 3623570 and id<>'3623570' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='57247' and id > 3623570 and id<>'3623570' order by id asc limit 5