患者体内有金属异物是高频电疗法的禁忌证,原因是（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25673' and id < 2157692 and id<>'2157692' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25673' and id > 2157692 and id<>'2157692' order by id asc limit 5