结肠肿瘤的典型X线征象是()肠套叠的典型X线征象是()溃疡性结肠炎的典型X线征象是()克罗恩结肠炎的典型X线征象是()乙状结肠扭转的典型X线征象是() ["A．铅管征","B．鹅卵石征","C．鸟嘴征","D．杯口征","E．充盈缺损"]
发生化学品事故后，首先应迅速将警戒区内无关人员()，以防止人员伤亡。 ["集中","稳定","撤离","分散"]
间质中出现有助于诊断的砂粒体的甲状腺癌是() ["A．滤泡性腺癌","B．乳头状癌","C．髓样癌","D．未分化癌","E．混合细胞癌"]
化学品仓库保管人员进行培训的主要内容是()。 ["文化知识","礼仪常识","化学品专业知识","安全管理知识"]
低位肠梗阻()幽门梗阻()肠扭转() ["A．胆汁性呕吐","B．粪性呕吐","C．血性呕吐","D．呕吐宿食伴酸臭味","E．喷射性呕吐"]
幽门梗阻出现()低位肠梗阻出现()肠扭转出现()
