单纯使用根治性切除手术治疗骨肉瘤，5 年存活率不高，其主要原因是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32558' and id < 2587551 and id<>'2587551' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32558' and id > 2587551 and id<>'2587551' order by id asc limit 5