（多选）吗啡的中枢作用包括（ 〉。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31199' and id < 2506985 and id<>'2506985' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31199' and id > 2506985 and id<>'2506985' order by id asc limit 5