吗啡中毒致死的主要原因是呼吸抑制。 （ )

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30910' and id < 2487378 and id<>'2487378' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30910' and id > 2487378 and id<>'2487378' order by id asc limit 5