(来学网)男性患儿,1.5岁,因误吸花生米后呛咳4天,胸片示右肺不张,听诊右肺呼吸音低,临床拟诊为右支气管异物,欲行支气管镜检查,应选择支气管镜的内径为 ( )
  • A.
    (来学网)3.0mm
  • B.
    (来学网)4.0mm
  • C.
    (来学网)5.0mm
  • D.
    (来学网)6.0mm
  • E.
    (来学网)7.0mm