染色体分带技术中，C带主要用于显示着丝粒附近的（）。 

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30528' and id < 2465253 and id<>'2465253' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30528' and id > 2465253 and id<>'2465253' order by id asc limit 5