By 1910, the US topped the world in railway mileage at over －－（） miles.
By 1910, the US topped the world in railway mileage at over --（） miles.
A.200,000
B.300,000
C.400,000
D.500,000
正确答案： 400,000
Tag：中外铁路文化之旅
时间：2022-01-14 21:29:45
- 上一篇：At age 70, （） turned his attention more closely to railroads, establishing a new conglomerate that revolutionized rail operations by standardizing procedures and timetables, increasing efficiency and decreasing travel and shipment times.
- 下一篇：Which one was not included as armored train mission objectives by British troops?