何谓消除性免疫和非消除性免疫?
根据《药品经营质量管理规范》的要求,储存药品的相对湿度为() ["35%~75%","25%~75%","45%~85%","35%~85%"]
车站工作的统计主要有() ["装卸车统计","现在车统计及车流统计","货车停留时间统计","货物列车出发正点统计","货物列车运行正点统计"]
胸骨() ["由胸骨柄和胸骨体组成","胸骨角平对第4肋","胸骨角向后平对第3胸椎","胸骨体两侧连接第2~7肋软骨"]
事业单位名称是指()的事业单位的全称。 ["主管部门批准","事业单位自定","经登记机关核准","银行开户时确定"]
宿主对寄生虫的免疫应答有几种?