根据风险未来结果的不确定性特征，风险可划分为（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25170' and id < 2135329 and id<>'2135329' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25170' and id > 2135329 and id<>'2135329' order by id asc limit 5