The White family ________ Paris for nearly two years.  They all miss their hometown very much.        [ ]

A. left                  

B. will leave        

C. have left            

D. have been away from

患者大咯血，给予止血药首选

A．酚磺乙胺(止血敏)
B．垂体后叶素
C．安咯血
D．维生素K
E．抗血纤溶芳酸