(来学网)水质子与脂质子的进动频率相差
  • A.
    (来学网)2.5ppm.
  • B.
    (来学网)3.5ppm.
  • C.
    (来学网)4.5ppm.
  • D.
    (来学网)5.5ppm.
  • E.
    (来学网)6.5ppm.