下列不属于证券经纪业务特点的是（）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29939' and id < 2427801 and id<>'2427801' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29939' and id > 2427801 and id<>'2427801' order by id asc limit 5