问题2:若想步行稳定，速度较慢则应进行（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25686' and id < 2158786 and id<>'2158786' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25686' and id > 2158786 and id<>'2158786' order by id asc limit 5