在寒冷环境下，哪种方式增加产热？（ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30913' and id < 2487736 and id<>'2487736' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30913' and id > 2487736 and id<>'2487736' order by id asc limit 5