行喉烫伤和烧灼伤分型的依据是() ["A．烫伤或烧灼伤的病因","B．头面部损伤情况","C．喉损伤情况","D．下呼吸道损伤情况","E．吞咽困难"]
气管插管后，损伤性肉芽肿的致病因素为() ["A．插管时损伤","B．气管插管过粗","C．插管时间过长","D．插管过深","E．以上所有各项"]
I治疗自主性高功能腺瘤方面，下列哪个是错的() ["A．I治疗剂量小于Graves'病的治疗","B．治疗后甲状旁腺功能减退发生率低于Graves'病的治疗","C．I治疗前服用T片或甲状腺片可减少甲状旁腺功能减退发生","D．参考结节大小确定I的治疗剂量","E．治疗效果良好"]
下面关于损伤性肉芽肿描述中错误的是() ["A．好发于女性患者","B．多于声带前、中1/3交界处，有息肉样肿物形成","C．主要症状是声嘶","D．切除后容易复发","E．在插管后2～8周出现"]
何谓卡方检验?
何谓真值、定值、准确度及精密度?
