红细胞内在异常包括_________缺陷，__________缺陷和____________缺陷。
参考答案：红细胞膜结构；红细胞酶；血红蛋白合成
---Can we sit at the table near the window?
---I’m sorry, but it______ already.
A．was taken
B．has taken
C．has been taken
D．has been taking
急性右心衰竭时常引起（）
A.皮肤黏液行水肿
B.全身多处水肿
C.眼睑水肿
D.下垂性水肿
E.下肢象皮肿
