第18题: [单项选择]While in bed the doctor was telephoned to go back to the hospital because of ______ case. A. a treatment B. an operation C. an incident D. an emergency 参考答案:D 答案解析:句意:由于有急症病例,已上床的医生被电话通知回医院。an emergency case意为“急症病例”,emergency作“紧急情况,突发事件”讲;operation意为“操作,手术”;treatm