(来学网)下颌恒牙萌出的顺序通常是
  • A.
    (来学网)6-1-2-3-4-5-7
  • B.
    (来学网)6-1-2-3-5-4-7
  • C.
    (来学网)6-1-2-4-3-5-7
  • D.
    (来学网)1-6-2-3-4-5-7
  • E.
    (来学网)1-2-6-4-3-5-7
正确答案:
A