题目内容

( ) is used for moving large volumes of freight over long distances.

A. rail network
B. pipe
C. road
D. aircraft

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Of all the land-based modes, the( ) are least affected by bad weather.

A. railways
B. cars
C. trucks
D. air

( ) transport is used for large loads of low-value-per-unit goods.

A. water
B. air
C. rail
D. motor

For the users, water transport is the ( ) method of moving goods world wide.

A. most expensive
B. slowest
C. cheapest
D. fastest

The major strength of ( ) transport is the speed of travel.

A. water
B. rail
C. air
D. motor