核酸具有紫外吸收的原因是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29023' and id < 2361991 and id<>'2361991' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29023' and id > 2361991 and id<>'2361991' order by id asc limit 5