以意识水平下降为主的意识障碍是（）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30940' and id < 2490541 and id<>'2490541' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30940' and id > 2490541 and id<>'2490541' order by id asc limit 5