(来学网)1.5T时脑脊液的T1值大约为3600ms。为抑制脑脊液,T约为
  • A.
    (来学网)2200
  • B.
    (来学网)2500
  • C.
    (来学网)5000
  • D.
    (来学网)140
  • E.
    (来学网)249.48