传染病血清中对近期感染有诊断意义的抗体是() ["A．IgA","B．IgM","C．IgG","D．IgD","E．总抗体"] 气道梗阻需与下列哪些急症鉴别() ["A．药物过量","B．脑卒中","C．心脏病发作","D．惊厥或抽搐","E．虚脱"] 下列哪项是甲类传染病() ["A．鼠疫、狂犬病","B．鼠疫、霍乱","C．艾滋病、鼠疫","D．霍乱、狂犬病","E．黑热病、狂犬病"] 传染病感染过程中最不常见的表现为() ["A．隐性感染","B．显性感染","C．病毒携带状态","D．潜伏性感染","E．病毒清除"] 熟悉各种传染病潜伏期最重要的意义在于() ["A．协助传染病的诊断","B．估计病情的严重性","C．有利于切断传播途径","D．确定传染病的检疫期限","E．预测疾病的预后"] 隐性感染增加的主要临床意义为()