患者，男，40岁。喉结两侧各有1个3cm×2cm×1cm,表面光滑，质地韧，无压痛，随吞咽上下活动的肿物。为明确诊断，应首选的检查方法是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28760' and id < 2344751 and id<>'2344751' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28760' and id > 2344751 and id<>'2344751' order by id asc limit 5