三年前曾行破伤风自动免疫者、受伤后应作下列哪项处理即可预防破伤风?() ["需再次注射破伤风类毒素0.5ml","需再次注射破伤风类毒素5ml","需再次注射破伤风抗毒素1500国际单位","需注射人体破伤风免疫球蛋白3000国际单位","严密观察、暂不注射"]
心室颤动的心电图特点。
成人最常见的肺结核类型是() ["原发性肺结核","血行播散性肺结核","继发性肺结核","结核性胸膜炎","肺外结核"]
患者,男,65岁,上、下颌牙列缺失多年。牙槽嵴吸收严重,有旧义齿修复史。现要求重新制作全口义齿。患者初戴全口义齿做前伸运动时,若前牙无接触,则应(). ["A.调磨降低上后牙牙尖高度","调磨降低下后牙牙尖高度","调磨上后牙牙尖的近中斜面或下后牙牙尖远中斜面","调磨上后牙牙尖的远中斜面或下后牙牙尖近中斜面","用自凝胶恢复上前牙的切缘高度"]
气管支气管淋巴结属于胸内哪一组淋巴结() ["前组脏侧","中组壁侧","中组脏侧","后组壁侧","前组壁侧"]
煤粉气流着火早晚对锅炉有何影响?