(来学网)肺炎患儿鼻前庭导管给氧,流量和浓度是
  • A.
    (来学网)0.5~1L/min,<40%
  • B.
    (来学网)2~4L/min,<50%
  • C.
    (来学网)5~6L/min,<60%
  • D.
    (来学网)7~8L/min,<70%
  • E.
    (来学网)9~10L/min,<80%