21.翻譯：這座吊車可伸展之最大範圍是多少？
(A)What is the maximum limitation of the crane?
(B)What is the maximum capacity of the crane?
(C)What is the maximum width of the crane?
(D)What is the maximum reach of the crane?

答案：登入後查看
統計： A(3), B(1), C(2), D(6), E(0) #2401057