(来学网)正常成人体内,碳水化合物所供热能应占总热能的比例是
  • A.
    (来学网)10%~14%
  • B.
    (来学网)20%~25%
  • C.
    (来学网)30%~40%
  • D.
    (来学网)45%~55%
  • E.
    (来学网)60%~70%