显示为X线片上包绕牙根连续不断的低密度线条状影像的解剖结构是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30101' and id < 2436933 and id<>'2436933' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30101' and id > 2436933 and id<>'2436933' order by id asc limit 5