A.必須設(shè)置剪刀撐 B.不一定設(shè)置剪刀撐 C.必須設(shè)置斜撐 D.必須設(shè)置拋撐
A.100mm B.120mm C.120-150mm D.200mm
A.誰用工誰負(fù)責(zé) B.班組發(fā)放 C.領(lǐng)用人發(fā)放 D.按期發(fā)放