有明显颅内压增高症状和体征的病人哪项检查应慎重（）
A.MRI
B.头颅X线摄片
C.腰穿
D.头颅CT扫描
E.核素扫描
参考答案：C
成本中心是指既能控制收入又能控制成本的责任单位。( )
— Could you do something for me, please?
— ______. [ ]
A. With pleasure.
B. For pleasure.
C. Yes, I could.
D. My pleasure.
