题型:问答题 简答题 — Let's discuss the question raised last night, shall we? — There is no hurry for that. I _____ for a conference.A. headedB. was headingC. am headingD. have headed 查看答案
题型:问答题 简答题 进行性血胸是指()A.损伤后DICB.血胸量大于500mlC.血胸量大于1000mlD.胸腔闭式引流一次放出血量达500mlE.闭式引流后,引流量每小时大于200ml,持续3h 查看答案