A.3Cm B.5Cm C.10Cm D.12Cm
A.50m B.100m C.150m D.200m
A.局部修補(bǔ) B.直接加鋪一層新的鋪裝層 C.整跨鋪裝層鑿除,重鋪新的鋪裝層 D.灌縫修補(bǔ)