下列成分中，抗凝血作用最强的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26297' and id < 2199870 and id<>'2199870' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26297' and id > 2199870 and id<>'2199870' order by id asc limit 5