题型:填空题 根据我国《医疗机构管理条例》实施细则第五十三条的规定:“医疗机构的门诊病历的保存期不得少于多少年;住院病历的保存期不得少于多少年。”()A.10:30B.10:15C.15:20D.15:30E.10:20 查看答案
题型:填空题 The young girl sitting next to me on the plane was very nervous. She ____ before. [ ]A. hasn't flown B. didn't fly C. hadn't flown D. wasn't flying 查看答案