蛋白质中平均含量在16％的元素是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30355' and id < 2453248 and id<>'2453248' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30355' and id > 2453248 and id<>'2453248' order by id asc limit 5