单项选择题
Don’t forget to close the hatches. ()
A.请关舱。 B.别碰易碎货。 C.不要忘记关舱。 D.不要忘记开舱。
单项选择题 We had lashed deck cargo before the gale came.()
单项选择题 Containers may be stowed both above and below deck.()
单项选择题 Lifting capacities of derricks vary from three to ten tons. ()