下列属于引起血液性缺氧常见原因的有（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30915' and id < 2487892 and id<>'2487892' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30915' and id > 2487892 and id<>'2487892' order by id asc limit 5