血性耳漏常见于:() ["A.外耳道湿疹","B.大疱性鼓膜炎","C.卡他性中耳炎","D.慢性化脓性中耳炎","E.脑脊液耳漏"]
气管、支气管疾病中最早出现,最常见的症状是:() ["咳嗽","咳痰","咯血","呼吸困难","喘鸣"]
营业前准备主要包括()。 ["A.班前物品准备","B.班前资料准备","C.班前个人规范检查","D.营业网点环境整理与检查","E.开门迎宾"]
有关咽痛的症状,不正确的是:() ["是咽部疾患最常见的症状之一","可因咽部邻近器官疾病引起","可分为自发性咽痛和激发性咽痛","完全是全身疾病的伴随症状","咽痛可放射至耳部"]
社会教育的内容及作用
幼儿的社会学习