可以引起DNA上核苷酸烷化并导致复制时错误配对的因素是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24537' and id < 2108012 and id<>'2108012' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24537' and id > 2108012 and id<>'2108012' order by id asc limit 5