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By 2005, China's network was the second busiest freight carrier and carried nearly （） percent of

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By 2005, China's network was the second busiest freight carrier and carried nearly （） percent of the world’s freight traffic.

A.23

B.33

C.43　

D.53

参考答案:

答案：23

相关问题:

By 2005,　China's network had become the biggest passenger car

Freight trains are very efficient, with economy of scale and high

The vehicles that carry freight are called （） in the United States o

Unlike freight trains, passenger trains must supply head-end power

The transport mode of carrier in organic materials is mainly hoppi

Conjugation size of organic molecular partially determined the car

To evaluate the conductivity of a material, the only micro factor

以太网是以CSMA／CD(CarrierSenseMultipleAccess／CollisionDetection，载波

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