诊断百日咳需与下列哪种疾病鉴别 ["A．肺门淋巴结结核","B．胸腺肥大引起的压迫症状","C．气管异物","D．百日咳综合征","E．痉挛性支气管炎"] 百日咳的主要临床表现 ["A．阵发性痉挛性咳嗽","B．稽留热","C．咳嗽终止时伴有鸡鸣样吸气声","D．皮疹","E．咯血"] 百日咳的并发症有 ["A．肺不张","B．百日咳脑病","C．皮下气肿","D．肺气肿","E．支气管肺炎"] 白喉的并发症有 ["A．中毒性脑病","B．中毒性肝炎","C．中毒性心肌炎","D．周围神经麻痹","E．中毒性肾病"] 白喉患者恢复期带菌时间长的原因有 ["A．注射疫苗","B．伴咽峡炎","C．伴链球菌感染","D．伴慢性扁桃腺炎","E．单用抗毒素治疗"] 有关白喉的预防正确的是