(来学网)在0.5 Tesla的场强中,氢质子(1H)的共振频率约为
  • A.
    (来学网)6.4MHz
  • B.
    (来学网)21.3MHz
  • C.
    (来学网)42.6MHz
  • D.
    (来学网)63.9MHz
  • E.
    (来学网)85.2MHz