單項選擇題

Which of the following is not dangerous cargo?（）

A. Coal.
B. Explosive cargo.
C. Flammable cargo.
D. Poisonous cargo.

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單項選擇題

Which of the following cargo is not carried in refrigerated ships?（）

A.Grain.
B.Fruit.
C.Meat.
D.Fish.

單項選擇題

Many types of general cargo are now carried in （）.

A. large bags
B. big drums
C. containers
D. large cases