A.5% B.10% C.15% D.20%
A.Ⅰ、Ⅲ、Ⅳ B.Ⅰ、Ⅱ、Ⅲ C.Ⅱ、Ⅲ、Ⅳ D.Ⅰ、Ⅱ.Ⅲ、Ⅳ
A.吊杆头部 B.吊杆根部 C.千斤索眼板 D.吊杆头,吊杆根部,千斤索眼板三处
A.196.10 B.205.18 C.122.15 D.155.10
A.1.15 B.1.125 C.1.11 D.1