(来学网)颈1~颈2间的旋转范围相当于整个颈椎旋转度的
  • A.
    (来学网)10%~19%
  • B.
    (来学网)20%~29%
  • C.
    (来学网)30%~39%
  • D.
    (来学网)40%~49%
  • E.
    (来学网)50%~59%