单项选择题
The oil is usually pumped into ship at the loading port by（）.
A. ship’s own pumps B. shore pumps C. large pipes D. large tubes
单项选择题 Fish, meat, fruit and vegetables are carried in（）.
单项选择题 Which of the following is not dangerous cargo?（）
单项选择题 Which of the following cargo is not carried in refrigerated ships?（）
