单项选择题
A. Big ships B. Huge ships C. Large container ships D. Supertankers
Water transport is the（） way of shipping bulk and low p...
单项选择题Water transport is the（） way of shipping bulk and low price goods.
A. Most inexpensive B. Save money C. Low cost D. Economically
What is the meaning of Metropolitan area? （）A. Around t...
单项选择题What is the meaning of Metropolitan area? （）
A. Around the city B. City itself C. The area near the city D. Big city and its neighbor area
Railroads own about （）of their car fleet.A.HalfB.80%C.2...
单项选择题Railroads own about （）of their car fleet.
A.Half B.80% C.20% D.Not mentioned
