对于蛛网膜下隙麻醉，通常采取的体位为（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30939' and id < 2490362 and id<>'2490362' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30939' and id > 2490362 and id<>'2490362' order by id asc limit 5