(来学网)如果窗宽为200,下界CT值是0Hu,那么窗位应当是
  • A.
    (来学网)200Hu
  • B.
    (来学网)0Hu
  • C.
    (来学网)100Hu
  • D.
    (来学网)50Hu
  • E.
    (来学网)-200Hu