肠外营养的并发症有：（）
A．气胸，血管、神经损伤
B．低血糖及高血糖
C．胆囊内胆泥和结石形成
D．腹痛，腹泻
参考答案：A,B,C
________ other good students, in my opinion, Tom is _________ student.
A．Compared with ；a most satisfied
B．Compared to；the most satisfied
C．Compared to ；the most satisfying
D．Compared with；a most satisfying
肺灌注显像剂常用（99M）Tc-MAA，其颗粒大小需控制在()
A．<10μm
B．10～60μm
C．60～100μm
D．100～300μm
E．300μm以上
