单项选择题
At the discharging port, tankers pump the oil ashore using （）.
A. shore pumps B. her own pumps C. large pumps D. large tubes
单项选择题 At the （）port, tankers pump the oil ashore using her own pumps.
单项选择题 The oil is usually pumped into ship at the loading port by（）.
单项选择题 Fish, meat, fruit and vegetables are carried in（）.
