计算机内存储器容量的计算单位之一是MB，它相当于（ ）B。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31815' and id < 2542814 and id<>'2542814' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31815' and id > 2542814 and id<>'2542814' order by id asc limit 5