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單項(xiàng)選擇題

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

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單項(xiàng)選擇題

Railroads own about （）of their car fleet.

A.Half
B.80%
C.20%
D.Not mentioned

單項(xiàng)選擇題

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

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