男,20岁,下颌第一恒磨牙颊沟浅龋坏,如对龋坏物质进行细菌培养对检查者可靠度检验要计算() ["Kappa值","q值","卡方值","U值","t值"]
离心分离技术基本原理?
患者,男,30岁,晨起尿道外口被尿道分泌物封闭,分泌物稀薄为无色或白色() ["淋菌性尿道炎","支原体或衣原体性尿道炎","急性前列腺炎","慢性前列腺炎","尿道癌"]
制动传动装置是利用什么原理产生作用的?
患者,男,28岁,不洁性接触3天,尿道口发痒、红肿及刺痛,流脓性分泌物() ["淋菌性尿道炎","支原体或衣原体性尿道炎","急性前列腺炎","慢性前列腺炎","尿道癌"]
除尘工岗位职责是什么?