遗传密码中的4种碱基一般是指

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24546' and id < 2107617 and id<>'2107617' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24546' and id > 2107617 and id<>'2107617' order by id asc limit 5