(来学网)公路隧道内的纵坡,一般()。
  • A.
    (来学网)大于0.2%.但不应大于2.0%
  • B.
    (来学网)大于0.3%,但不应大于2.0%
  • C.
    (来学网)大于0.3%.但不应大于3.0%
  • D.
    (来学网)大于0.4%,但不应大于4.0%