（）被视为无风险证券,相对应的证券收益率被称为无风险利率的证券。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30037' and id < 2432721 and id<>'2432721' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30037' and id > 2432721 and id<>'2432721' order by id asc limit 5