中国茶叶中的PCDD／PCDF有机氯农药和PAH残留量

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SQL Error: select id,classid,MATCH(title) AGAINST('54482590 25901872 18725022 50225448 54482136 PCDD 0315 PCDF 51482790' IN BOOLEAN MODE) as jhc from ***_enewssearchall where (id<>220803) and MATCH(title) AGAINST('54482590 25901872 18725022 50225448 54482136 PCDD 0315 PCDF 51482790' IN BOOLEAN MODE) order by jhc desc,infotime desc limit 0, 6