单项选择题
Tools and instruments belong to（）.
A.raw materials B.consumable products C.finished metalic products D.raw metallic products
单项选择题 When loading or unloading baled cargo on board,the straps（）to lift or drag the bales.
单项选择题 Raw materials belong to（）.
单项选择题 Which of the following statements about general cargoes is not correct?（）
