下列属于合成髙分子材料的癱材是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30803' and id < 2480863 and id<>'2480863' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30803' and id > 2480863 and id<>'2480863' order by id asc limit 5