服务人员与服务对象所保持的最常规的服务距离是（ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27169' and id < 2251038 and id<>'2251038' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27169' and id > 2251038 and id<>'2251038' order by id asc limit 5