下列选项中，不属于阿片类药物的作用机 制的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28204' and id < 2309180 and id<>'2309180' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28204' and id > 2309180 and id<>'2309180' order by id asc limit 5