金融互换合约实质上可以分解为一系列（ ）组合。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25442' and id < 2143605 and id<>'2143605' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25442' and id > 2143605 and id<>'2143605' order by id asc limit 5