以下微量元素属于人体可能必需微量元素的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30437' and id < 2459274 and id<>'2459274' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30437' and id > 2459274 and id<>'2459274' order by id asc limit 5