根据风险的偏好，可将投资者分为多种类型，但不包括

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30226' and id < 2444948 and id<>'2444948' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30226' and id > 2444948 and id<>'2444948' order by id asc limit 5