A.便于施工 B.便于連墻件沒(méi)置 C.便于立桿接長(zhǎng) D.保證連墻件對(duì)腳手架起到約束作用
A.豎向6m,水平向6m B.豎向5m,水平向5.4m C.豎向4.5m,水平向5.4m D.豎向4.5m,水平向6m
A.大于200mm和不小于100mm B.大于80mm和不小于50mm C.大于40mm和不小于200mm D.大于100mm和不小于50mm