染色体两臂末端各有一特化结构，称为

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24545' and id < 2107705 and id<>'2107705' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24545' and id > 2107705 and id<>'2107705' order by id asc limit 5