低层次的需求是复杂的，高层次的需求精神因素多、更加高级。（ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27191' and id < 2254654 and id<>'2254654' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27191' and id > 2254654 and id<>'2254654' order by id asc limit 5