每一账页登记完毕，进行过次页和承前页的目的有（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31440' and id < 2520520 and id<>'2520520' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31440' and id > 2520520 and id<>'2520520' order by id asc limit 5