The tackle that raises and lowers the boom
题型:单项选择题
问题:
The tackle that raises and lowers the boom is().
A.the cargo fall
B.The cargo hoisting wire rope
C.the topping lift
D.the cargo whip
The tackle that raises and lowers the boom is().
A.the cargo fall
B.The cargo hoisting wire rope
C.the topping lift
D.the cargo whip