单项选择题
（）(湿货)must be kept away from dry cargo.
A. Light cargo B. Wet cargo C. Heavy cargo D. Deck cargo
单项选择题 This is （）(甲板货).
单项选择题 Persons who load and discharge ships are called （）(装卸工人).
单项选择题 There is no power for the （）(起货机).
