具体目标可以归纳为SMART,其中M是指

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25509' and id < 2147501 and id<>'2147501' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25509' and id > 2147501 and id<>'2147501' order by id asc limit 5