商业银行进行风险加总，若考虑风险分散化效应，应基于 实证数据，且数据观察期至少覆盖 完整的经济周期。（ )

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26427' and id < 2207825 and id<>'2207825' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26427' and id > 2207825 and id<>'2207825' order by id asc limit 5