• 2022-06-11
    图1中的楼梯类型为()A.AT型楼梯B.BT型楼梯C.CT型楼梯D.DT型楼梯2.图1中楼梯的踏步级数为()A.6级B.7级C.8级D.9级3.图1中楼梯的分布筋为()A.C12@100B.C10@100C.C8@100D.C8@2004.图1中“lsn”的长度为()A.740mmB.1400mmC.1500mmD.2980mm5.图1中楼梯的踏步数为()A.6B.7C.8D.96.图1中梯板厚度为()A.100mmB.120mmC.200mmD.250mm7.图1中楼梯的梯板跨度为()A.740mmB.1400mmC.1500mmD.2980mm