A.90dB(A) B.80dB(A) C.70dB(A) D.100dB(A)
A.在橋面伸縮縫處應(yīng)預(yù)留2cm斷縫 B.每5m設(shè)1條假縫 C.每10m設(shè)1條假縫 D.每跨墩頂處設(shè)1條假縫
A.復(fù)墾 B.深翻 C.運走 D.翻曬