相关考题
-
单项选择题
Containers are loaded and discharged by（）.
A. heavy derrick
B. special cranes
C. fork trucks
D. winch -
单项选择题
（）cargo must be kept away from dry cargo.
A.Wet
B.Heavy
C.Light
D.Dry -
单项选择题
（）cargo is unloaded by large grain elevators.
A.General
B.Liquid
C.Drybulk
D.Wet
