下列指标中最适用于检测睡眠深度的是（      ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25949' and id < 2180084 and id<>'2180084' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25949' and id > 2180084 and id<>'2180084' order by id asc limit 5