(来学网)成人颈部CTA检查时,对比剂的注射速率为
  • A.
    (来学网)1~2ml/s
  • B.
    (来学网)3~4ml/s
  • C.
    (来学网)5~6ml/s
  • D.
    (来学网)7~8ml/s
  • E.
    (来学网)8~9m1/s