单项选择题
What purpose does a bridge fitting serve when lashing containers?（）.
A.Ties a container stack to the deck B.Ties a container to the container below it C.Restrains racking loads D.Restrains the container against horizontal motion
单项选择题 Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE? （）
单项选择题 With the buttress securing system，containers of different heights must be stowed（）.
