A.鋪草皮B.終值防水林、掛柳C.干砌片石護(hù)坡D.漿砌片石護(hù)坡
A.植物防護(hù)B.坡面處治C.護(hù)坡及護(hù)面墻D.拋石防護(hù)
A.5mB.20mC.30mD.50m