( )可以用来衡量投资组合价值波动的幅度。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25281' and id < 2138964 and id<>'2138964' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25281' and id > 2138964 and id<>'2138964' order by id asc limit 5