单项选择题
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
The advantage of rail transport is （）A. Great amount of...
单项选择题The advantage of rail transport is （）
A. Great amount of shipped B. Less damage ration C. Fast speed, exact schedule, and cost saved D. Direct shipping line
The disadvantage above mentioned can be overcome by （）A...
单项选择题The disadvantage above mentioned can be overcome by （）
A. combined transport B. More frequency C. Fast train D. More flexible
