题型:选择题 -What is your father doing now? -He ________ the room.A.cleanedB.cleansC.have cleaned D.is cleaning 查看答案
题型:单项选择题 A3/A4型题 患者,男,40岁,因贫血严重行输血治疗,于输血几分钟后,患者即出现严重腰背四肢酸痛,头痛,呕吐,寒战高热,面色苍白和黄疸。急于停止输血并对症处理,患者上述症状消失。严重者可出现()。A.周围循环衰竭B.急性肾功能衰竭C.少数病人可出现再生障碍性危象D.骨髓象改变呈急性造血停滞E.以上都对 查看答案