题型:单项选择题 A1型题 对稀释式自体输血的叙述,下列哪项是错误的()A.先输最先采集的血B.可减少输血反应和疾病传播C.可节约用血D.术中失血量超过300ml时可开始回输自体血E.术中的失血是已被稀释了的血液 查看答案
题型:选择题 I was really anxious about you. You _______ home without a word.A.mustn’t leaveB.shouldn’t have leftC.couldn’t have leftD.needn’t leave 查看答案