单项选择题
The （）(吊货索套) at hatch No.1 is quite worn out.
A. cargo light B. lashing wire C. cargo sling D. wire rope
单项选择题 Please fix some more （）(货灯).
单项选择题 When the winch is in trouble, the sailor must call the （）(电工) to repair it.
单项选择题 Sailors should know the （）(安全工作负荷量)of derricks.
