A.100 B.150 C.200 D.250
A.50 B.80 C.100 D.150
A.上下層油氈不能垂直鋪貼 B.應(yīng)由低向高處鋪貼 C.屋面坡度小于3%時(shí),應(yīng)平行屋脊鋪貼,坡度大于15%時(shí),應(yīng)垂直屋脊鋪貼 D.同層油氈的搭接長(zhǎng)度,長(zhǎng)邊不應(yīng)小于100mm,短邊不應(yīng)小于70mm