危遊症患者常用的ECG监护导联足（  ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27185' and id < 2252870 and id<>'2252870' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27185' and id > 2252870 and id<>'2252870' order by id asc limit 5