A. switching to B. flourish C. marketplace Phrases: A. which companies will【T1】______ B. who have the option of【T2】______trucks

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问题 A. switching to B. flourish C. marketplace
Phrases:
A. which companies will【T1】______
B. who have the option of【T2】______trucks
C. who loses in the【T3】______
    Railroads justify rate discrimination against captive shippers on the grounds that in the long run it reduces everyone’s cost. If railroads charged all customers the same average rate, they argue, shippers【T4】______or other forms of transportation would do so, leaving remaining customers to shoulder the cost of keeping up the line. It’s a theory to which many economists subscribe, but in practice it often leaves railroads in the position of determining【T5】______and which will fail. "Do we really want railroads to be the arbiters of who wins and【T6】______?" asks Martin Berco-vici, a Washington lawyer who frequently represents shipper.
【T2】

选项 A、 
B、 
C、 

答案A

解析 介词of后跟名词或动名词,空格后出现了名词trucks,空格所填词语后必须能跟动名词,所以选switching to,意思是“转向卡车”。故选A。
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