位置性眩晕的特点是()。 ["多在发热后出现眩晕","多数伴有耳鸣及听力减退","常先有口周发麻","可见于迷路和中枢病变","眩晕出现时头部无特定位置"]
确诊流行性出血热的主要依据是() ["鼠类接触史",""三痛"和"三红"征","全身感染中毒症状","异型淋巴细胞增多","特异性IgM抗体滴度升高"]
恒牙建的关键是() ["第一恒磨牙的关系","第二恒磨牙的关系","保证第一恒磨牙无龋坏","保证第二恒磨牙无龋坏","及时给恒磨牙做窝沟封闭"]
对急性重型肝炎诊断无提示意义的是() ["ALT>1000U/L","深度黄疸","肝脏迅速缩小","肝性脑病","腹水、鼓肠"]
呕吐伴眩晕、眼球震颤最可能是()。 ["急性胃肠炎","前庭器官疾病","青光眼","脑膜炎","肾绞痛"]
军团病的临床表现有哪两种类型?其主要临床表现有哪些?