( )是金融工程的核心任务，也是了解产品风险的第一步。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27089' and id < 2246447 and id<>'2246447' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27089' and id > 2246447 and id<>'2246447' order by id asc limit 5